Hamamatsu S11155-2048-02 CCD Image Sensor: Back-Thinned Technology for UV-Visible Spectroscopy and OEM Procurement

Scientific spectroscopy requires detectors capable of preserving information about light intensity across a defined wavelength range while minimizing the errors introduced by electronic noise, incomplete charge transfer, unwanted background signals and variations in exposure. These requirements become particularly important in ultraviolet-visible analytical instruments, where the amount of light reaching the detector may change substantially between wavelengths or between different sample measurements. A detector that produces a strong signal under ordinary visible illumination may not necessarily deliver the same measurement quality when exposed to weak ultraviolet emissions or rapidly changing optical conditions. Hamamatsu S11155-2048-02 is a specialized back-thinned CCD linear image sensor developed for spectrometers and optical measurement equipment, incorporating 2,048 effective photosensitive elements, an internal electronic shutter and a resistive-gate charge-transfer structure designed to support controlled acquisition with low residual signal from preceding measurements.

Unlike a general-purpose camera sensor intended to produce a recognizable two-dimensional picture, Hamamatsu S11155-2048-02 is designed to capture optical information distributed along a single sensing row. In a dispersive spectrometer, light from a source or sample passes through an optical system that separates its wavelengths before projecting them onto the detector. Each sensing element receives a portion of the dispersed light and generates an electrical signal corresponding to the accumulated optical exposure. The instrument's electronics then acquire those signals and reconstruct a spectrum after applying the necessary wavelength mapping, reference corrections and calibration. The semiconductor's effectiveness depends on its ability to collect useful optical information, transfer the accumulated charge reliably and produce a sufficiently stable electrical output for the instrument's intended measurement.

Hamamatsu S11155-2048-02 contains 2,048 effective sensing elements measuring 14 × 500 µm, providing an active photosensitive region of approximately 28.672 × 0.500 mm. The 14 µm pitch establishes regular measurement positions along the detector's wavelength-dispersion axis, while the 500 µm element height provides an elongated light-collection region suitable for particular spectrometer optical arrangements. The manufacturer specifies a spectral response extending from approximately 200 to 1100 nm, covering a substantial ultraviolet region, the visible spectrum and part of the near-infrared. This broad sensitivity is valuable when developing analytical equipment intended to observe optical phenomena across multiple wavelength bands, although the usable range and measurement accuracy of the finished instrument must still be established from the complete optical system.

The detector's back-thinned architecture is a central reason for considering it in scientific applications. Back-thinned CCD construction allows incident light to reach the photosensitive region through a structure intended to improve optical detection characteristics, particularly where conventional front-side structures could limit collection of shorter-wavelength light. Hamamatsu developed this device for high sensitivity extending from the ultraviolet region, making it relevant to spectrophotometers and other analytical systems in which ultraviolet measurements contribute important information. However, the term back-thinned should not be interpreted as a guarantee of superior performance at every wavelength or under every operating condition. The manufacturer spectral response characteristics, expected optical signal and instrument noise requirements must be evaluated together.

Another important feature is the integrated electronic shutter, which allows the detector to operate with controlled integration timing. Hamamatsu specifies a minimum integration time of 2 µs, giving instrument designers the ability to consider short exposures under suitable illumination and timing conditions. The device also incorporates a resistive-gate structure intended to support rapid signal-charge transfer, contributing to its low image-lag characteristics. Hamamatsu reports typical image lag of approximately 0.1% under specified conditions and identifies an improvement relative to the earlier Hamamatsu S11155-2048-01 generation. This characteristic is relevant where the instrument acquires consecutive measurements with substantially different light intensities, because unwanted charge remaining from an earlier observation can influence the next acquired signal.

For global equipment manufacturers researching an industrial image sensor supplier, the combination of back-thinned detection, elongated pixels and specialized CCD timing makes Hamamatsu S11155-2048-02 a distinct technical component rather than a generic 2,048-pixel device. Its physical construction includes a ceramic package and quartz window, while the manufacturer identifies a dedicated driver circuit for suitable evaluation and integration. These details matter because the CCD's external operating conditions differ from those of many CMOS linear detectors, and correct clocking and charge transfer are essential for dependable readout. A manufacturer should therefore qualify the complete electronic and optical arrangement before approving the device for production.

Kyptec Automation® provides a dedicated Image Sensor category covering Hamamatsu, Toshiba and ON Semiconductor technologies. Its published sourcing process allows customers to identify the manufacturer, exact part number and required quantity, providing a focused commercial channel for analytical equipment manufacturers, scientific instrument developers and OEM purchasing teams. This approach is particularly useful for specialized scientific CCD devices because the approved detector may be closely tied to the instrument's optical alignment, electronic driver and calibration procedure. Kyptec Automation® also provides worldwide export enquiry information, enabling international buyers to communicate precise component requirements for commercial consideration. Actual stock, pricing, delivery timing and transaction documentation should be confirmed for each requested order.

This guide examines Hamamatsu S11155-2048-02 with particular attention to the scientific importance of its back-thinned construction, resistive-gate charge transfer and shutter-controlled measurement architecture. It explains how these features influence ultraviolet-visible spectrometer design, how the 500 µm pixel height relates to optical throughput, how image lag and readout noise should be evaluated, and why the manufacturer-specific driver and package characteristics matter during OEM development. It also addresses component verification, production testing and international procurement, providing a model-specific technical buying reference for manufacturers who require dependable optical measurements rather than general imaging capability.

Back-Thinned CCD Architecture, Resistive-Gate Charge Transfer and Scientific Detector Performance

Back-thinned CCD technology is relevant to spectroscopy because a scientific detector must convert incident optical energy into charge while preserving as much useful wavelength-dependent information as possible. The amount of collected signal depends on the number of photons reaching the photosensitive structure and the detector's response at their wavelengths. In a conventional front-illuminated semiconductor, portions of the front-side structure can influence how incident light reaches the collection region. Back-thinned construction provides a different optical approach, allowing suitable devices to achieve useful sensitivity in spectral regions that may be particularly demanding for conventional arrangements. Hamamatsu S11155-2048-02 uses this architecture to support high sensitivity from the ultraviolet region, making it suitable for technical evaluation in spectrometers where short-wavelength detection forms an important part of the measurement requirement.

The manufacturer's 200–1100 nm response specification indicates a broad region of optical sensitivity, but the detector does not respond identically at every wavelength. A spectrometer designed to measure short ultraviolet wavelengths must consider the actual response curve alongside light-source intensity, optical-element transmission and background contamination. Similarly, an instrument operating toward the near-infrared limit must verify that sufficient useful light reaches the detector and that its response remains appropriate for the required measurement uncertainty. The back-thinned architecture creates valuable possibilities, but the practical decision should be based on wavelength-specific sensitivity rather than the assumption that every part of the nominal response range is equally effective.

For buyers evaluating back thinned CCD image sensors, Hamamatsu S11155-2048-02 provides a distinctive combination of photosensitive geometry and controlled charge handling. Its 2,048 effective pixels have a 14 µm pitch in the horizontal direction and a comparatively tall 500 µm dimension perpendicular to the sensing row. In a spectrometer, the wavelength information is generally distributed along the horizontal axis, while the height of the spectral image depends on the optical system. The tall sensing elements can collect light from a wider image in this perpendicular direction, potentially making them useful in systems where the slit image or optical arrangement produces an elongated illumination pattern. However, a larger collection height does not independently improve wavelength resolution and should not be selected without evaluating how the light actually reaches the detector.

The active length of 28.672 mm establishes the available horizontal sensing region across which the optical system can project its intended spectrum. If a spectrometer maps a 350 nm wavelength interval approximately evenly across the 2,048 effective pixels, the nominal average wavelength sampling interval would be around 0.171 nm per element. This figure provides a useful optical design calculation but does not represent guaranteed spectral resolution. A monochromatic feature may illuminate several adjacent sensing elements because of the entrance slit, grating dispersion and imaging optics. The instrument's actual ability to separate nearby spectral features therefore depends on optical resolving power and calibration. Selecting a detector with many pixels is useful only when the optics provide sufficiently defined information for those positions to sample.

The 500 µm sensing height also creates a practical trade-off that should be evaluated carefully. A taller photosensitive region may receive more of the light from a spectral image that has appreciable vertical extent, but it may also receive additional unwanted illumination if stray light is not controlled. The appropriate detector height depends on the source geometry, slit image, optical magnification and expected background. A compact spectrometer with a well-focused narrow optical image may not benefit from every micrometre of the available height, while another optical design may use much of it productively. The OEM should therefore measure useful signal and background levels under representative conditions rather than assume that increasing the photosensitive area always produces better scientific performance.

An important distinction between Hamamatsu S11155-2048-02 and ordinary CCD configurations is its resistive-gate architecture. Hamamatsu explains that conventional CCD structures often use multiple electrodes within a pixel and rely on changing clock voltages to transfer signal charge through successive potential regions. In the resistive-gate arrangement, a high-resistance electrode establishes a potential slope that assists charge transfer through the active region. This is particularly relevant where the pixel has a large vertical dimension, since collected charge must be transferred efficiently even though the photosensitive geometry is elongated. The approach allows Hamamatsu to provide a tall-pixel linear detector while maintaining the low-lag readout behavior important to sequential scientific measurements.

Image lag deserves careful consideration because it can influence instruments that alternate between bright and weak optical signals. When charge associated with an earlier acquisition is not removed completely, part of that information may appear in a later measurement. In spectroscopy, this could produce an unwanted residual contribution after the instrument switches from a bright source to a much weaker sample. Hamamatsu specifies typical image lag of approximately 0.1% for Hamamatsu S11155-2048-02 under its characterization conditions, reflecting the low-lag design associated with its resistive-gate structure. However, a typical figure should not be interpreted as an absolute guarantee for every integration time, temperature, intensity or timing sequence. The OEM should test the specific operating pattern intended for the instrument, especially if measurements involve substantial changes in brightness.

The detector includes an electronic shutter capable of a minimum integration time of 2 µs. This feature can be useful when the instrument needs to limit exposure to a bright optical signal or coordinate a measurement with a short illumination event. However, the minimum available integration time is not necessarily the minimum useful exposure for every application. If insufficient light reaches the detector during a very short integration, the resulting signal may be dominated by noise or may lack the precision required for the analysis. A suitable exposure should therefore be selected according to actual photon levels, detector characteristics and the measurement requirement. Electronic shutter capability provides control over timing, but the optical signal must still be sufficient for the intended scientific result.

For scientific equipment manufacturers evaluating a CCD linear image sensor, readout noise is another relevant specification. Hamamatsu identifies typical readout noise of approximately 30 electrons RMS under stated conditions. This characteristic describes an aspect of the electronic uncertainty associated with measuring the charge-derived signal. It becomes important when the useful optical charge is small, because electronic noise may represent a significant part of the measured output. The OEM should examine the expected signal level, integration time and required uncertainty to determine whether the detector provides sufficient measurement quality. Readout noise cannot be considered in isolation from the analog acquisition circuit, which may introduce further unwanted contributions if the PCB, driver or converter is poorly designed.

Dark current contributes another source of unwanted signal. Hamamatsu specifies typical dark current of approximately 10,000 electrons per pixel per second in MPP operation at the manufacturer's stated reference temperature. This does not mean every scientific acquisition contains that number of dark electrons, since the amount accumulated depends on integration time and operating conditions. A short exposure may result in a different dark contribution from a long one, and temperature can influence the actual behavior. The manufacturer should therefore evaluate dark signal under the intended operating conditions and use suitable reference procedures where necessary. A non-cooled CCD can support useful scientific measurements, but the measurement uncertainty should be established using real exposure settings rather than a simplified interpretation of the datasheet value.

The detector's maximum readout speed is 10 MHz, with a published maximum line rate of approximately 4,633 lines per second and a typical line rate of approximately 2,327 lines per second. These figures are useful when considering acquisition throughput, but they describe specified detector operating capabilities rather than the guaranteed performance of every completed spectrometer. The actual measurement rate may be limited by the integration time required for adequate signal, the timing sequence, analog conversion or software processing. A spectrometer intended for rapid optical monitoring may operate differently from one performing deliberate high-precision analytical measurements. The OEM should therefore establish the required rate of scientifically useful spectra and design the complete acquisition chain accordingly.

The CCD uses a two-phase horizontal clock architecture and an output arrangement that must be driven according to the manufacturer timing documentation. This differs from certain CMOS detectors with more extensively integrated timing functions, making the selection of suitable driver electronics especially important. Hamamatsu identifies its C11165-02 as a dedicated driver circuit for Hamamatsu S11155-2048-02. This provides a relevant reference for evaluation, although the final equipment manufacturer must determine the appropriate production integration arrangement. A high-quality CCD will not provide its intended performance if charge-transfer clocks, analog output handling or shutter signals are implemented incorrectly. Electrical qualification is therefore inseparable from optical qualification.

The manufacturer also identifies a ceramic package with a quartz window. These characteristics influence the mechanical assembly and optical transmission of the instrument. A ceramic package provides the physical housing and electrical interface that must be accommodated by the PCB and detector mounting arrangement, while the quartz window is relevant to ultraviolet-capable optical designs. However, suitable window material does not guarantee that the entire spectrometer transmits ultraviolet light efficiently. Additional lenses, coatings, adhesives or protective elements may impose wavelength-dependent limitations. The OEM should examine the full optical path and use manufacturer dimensional information when designing the detector housing, ensuring that the spectral image is aligned with the 28.672 × 0.500 mm effective sensing region.

UV-Visible Spectrometer Applications, Electronic Shutter Control and Low-Lag Optical Measurement

Ultraviolet-visible spectrophotometry is a primary application for Hamamatsu S11155-2048-02 because its back-thinned CCD structure is developed for sensitive optical detection across a broad wavelength range. In a typical instrument, light from a source passes through a sample or another optical arrangement, and a dispersive element separates the resulting light into wavelength-dependent positions. The detector acquires the intensity distribution, which the instrument uses to calculate or display a spectrum. The scientific meaning of that spectrum depends on the measurement method, including how source intensity, sample interaction and optical transmission are accounted for. A CCD with broad ultraviolet response provides useful information, but accurate results require calibration of the complete system and control of unwanted optical contributions.

One application is absorbance spectroscopy, where the instrument compares a measurement made through a sample with an appropriate reference. If the sample transmits relatively little light at a particular wavelength, the useful detector signal may become small. The readout noise, dark signal and stray-light contribution can then influence the reliability of the calculated absorbance. Hamamatsu S11155-2048-02 is relevant for evaluation in such systems because it provides a specialized back-thinned sensing structure and a defined electronic shutter, but its suitability must be established from actual measurement requirements. An OEM should test the expected transmission range rather than assume that a broad spectral response automatically supports every concentration or absorbance condition.

For manufacturers selecting a UV visible spectrometer detector, the short-wavelength end of the intended measurement range deserves particular attention. Ultraviolet light may be attenuated by optical components that perform adequately in the visible spectrum. A source that provides sufficient light at one wavelength may also be much weaker at another, creating uneven detector signal conditions. The quartz window of Hamamatsu S11155-2048-02 is relevant to its specified response from the ultraviolet region, but the complete instrument must still demonstrate acceptable transmission and signal quality. The optical designer should examine the grating, slit, lenses and any protective windows, while the calibration process should verify performance at the wavelengths that matter to the actual analytical method.

Optical emission measurement provides another application in which the detector's characteristics require careful evaluation. In an emission spectrometer, a sample or process generates light containing spectral features that may differ greatly in intensity. Some peaks can be strong while others are faint, and the instrument must preserve meaningful information without introducing residual contributions from earlier measurements. The low image-lag design of Hamamatsu S11155-2048-02 can be relevant when consecutive acquisitions involve different signal levels. However, the actual significance depends on the acquisition schedule and the magnitude of the brightness changes. The OEM should test representative strong-to-weak transitions to determine whether residual signal remains within its acceptable measurement uncertainty.

The integrated shutter can be valuable when the instrument uses a pulsed illumination source. A short exposure window may allow the detector to observe a particular portion of the optical event, provided that the synchronization and light intensity are suitable. Hamamatsu's specified minimum integration time of 2 µs establishes a relevant detector capability, but it does not guarantee that every microsecond-scale optical event can be measured accurately. The source pulse duration, timing jitter, optical intensity and charge-transfer sequence must be evaluated together. The instrument should also establish whether the necessary signal can be accumulated within the selected interval. Proper synchronization can improve measurement consistency, but the detector must still receive enough useful photons.

The resistive-gate structure becomes particularly relevant when rapid changes in illumination occur. Because the photosensitive elements are relatively tall, efficient charge transfer is important for reducing unwanted residual signal. Hamamatsu developed the resistive-gate arrangement to support rapid transfer despite the elongated pixel geometry, contributing to the device's low image-lag characteristics. In an analytical instrument that repeatedly alternates between calibration, reference and sample readings, such behavior can help maintain a clearer distinction between successive acquisitions. Nevertheless, low image lag does not replace correct timing or calibration. The manufacturer should define the operating sequence carefully and verify that the detector is driven according to the required transfer conditions.

For OEM developers sourcing scientific CCD sensors, the sensor's non-cooled configuration may be an important practical consideration. Avoiding active cooling can simplify instrument construction, reduce certain mechanical requirements and make compact systems easier to integrate. However, the dark-current contribution may become relevant during long integrations or weak-light measurements. An instrument intended for controlled laboratory conditions may have different thermal demands from one installed near industrial equipment. The OEM should establish the intended operating temperature range and test whether the acquired measurements remain sufficiently stable. Appropriate dark-reference correction may be necessary, while the final determination should follow measured performance rather than assumptions about all non-cooled CCD devices.

The spectral image geometry also influences application suitability. Hamamatsu S11155-2048-02 has a 500 µm photosensitive height, making it relevant to optical systems that project light over an extended vertical region. This can be valuable when the entrance slit and imaging optics produce a relatively tall spectral line, but only if useful light is distributed appropriately. An unnecessarily large illuminated region may increase the contribution of stray light or other unwanted optical signals. The OEM should therefore evaluate the actual point-spread or line-spread characteristics of the spectrometer and determine how the detector height affects light collection and background. The correct geometry is the one that supports the required measurement quality, not necessarily the largest sensing area available.

An instrument used for absorption or reflectance analysis must also account for wavelength-dependent response. The back-thinned CCD detects different wavelengths with different efficiency, while the source and optical components contribute their own spectral characteristics. A raw measurement therefore cannot automatically be interpreted as the sample's intrinsic response. Depending on the application, the instrument may need dark correction, reference normalization or other calibrated processing. These procedures should be developed from the actual analytical method and validated across the intended measurement range. The detector's spectral response information helps explain expected signal behavior, but it cannot replace the instrument-level reference measurements required for accurate analysis.

Wavelength calibration is equally important because the semiconductor records optical energy at physical positions, not at automatically identified wavelengths. The optical system establishes where light of each wavelength falls along the 2,048-element sensing row. The manufacturer can provide a consistent pixel pitch, but the grating, slit and detector alignment determine the completed instrument's wavelength mapping. A small mechanical shift during assembly or service can alter the reported wavelength positions. The OEM should therefore establish an appropriate calibration method using known optical references and determine whether each production instrument requires individual adjustment or verification. The detector's consistent geometry supports this process, but the finished spectrometer must demonstrate its own wavelength accuracy.

Dynamic range presents another important design consideration. A scientific spectrum may contain intense peaks and weak features within the same acquisition, and the detector must preserve sufficient information across that difference. Hamamatsu's detailed documentation includes charge-capacity and readout characteristics that help engineers evaluate usable signal range, but the completed instrument's performance also depends on the analog electronics and integration strategy. A signal approaching saturation may no longer represent the received light accurately, while very weak measurements can be influenced by noise. The OEM should establish the expected signal extremes and verify them under representative conditions. Shorter integration may be appropriate for bright measurements, while longer exposure can be considered where weak signals justify it and the timing permits.

A dedicated driver and correct analog acquisition become especially important because the detector uses specialized CCD timing and charge transfer. The external electronics must deliver appropriate control signals and acquire the output without adding excessive interference. A development board can support early evaluation, but the production PCB must still be qualified for the intended operating conditions. Hamamatsu identifies the C11165-02 dedicated driver circuit for the device, which may provide a useful engineering reference. However, using an appropriate driver does not independently establish the scientific accuracy of the finished instrument. Optical performance should be measured after the detector has been incorporated into its actual housing, source arrangement and processing system.

Kyptec Automation® provides a dedicated Image Sensor sourcing route for manufacturers that have completed the technical evaluation of Hamamatsu S11155-2048-02. The category identifies Hamamatsu among its supported technologies and invites enquiries specifying the exact manufacturer part number and quantity. This is particularly useful for specialized CCD devices because the approved electronics, optical geometry and calibration process can depend on the selected semiconductor configuration. International OEMs can communicate their requirements through the company's published export contact information, while actual component availability and transaction conditions should be confirmed for the requested order.

OEM Component Qualification, CCD Driver Compatibility and International Procurement

The purchasing process for Hamamatsu S11155-2048-02 should begin with a complete engineering specification that includes the exact manufacturer part number, device architecture, package and critical operating characteristics. The detector is not simply a general-purpose CCD with 2,048 pixels; it is a back-thinned linear sensor with 14 × 500 µm photosensitive elements, an integrated electronic shutter and a resistive-gate charge-transfer structure. These features may be central to the instrument's optical collection, timing and calibration. A purchasing description that omits the specific model could lead to an offer for a different device with similar nominal resolution but different electrical or mechanical requirements. The approved bill of materials should therefore identify the precise semiconductor used during qualification.

For global buyers seeking a CCD image sensor supplier, Kyptec Automation® provides a dedicated Image Sensor category covering Hamamatsu scientific detectors. The published enquiry process asks customers to specify the make, part number and quantity, supporting communication of a defined requirement rather than a broad request for an unspecified optical component. This is useful to scientific equipment OEMs because the selected detector may require a specific driver arrangement and optical alignment. Kyptec Automation® also publishes worldwide export enquiry information, allowing international purchasing teams to submit the exact Hamamatsu designation and intended quantity for commercial consideration. Actual stock status, pricing, delivery conditions and requested documentation should be confirmed during the transaction.

Datasheet verification is especially important when selecting this component because its operating architecture is more specialized than that of many CMOS linear sensors. Hamamatsu publishes information on the CCD's resistive-gate structure, electronic shutter timing, readout conditions and charge-transfer requirements. The engineering team should use the current manufacturer documentation to develop its circuit rather than assume that a general CCD driver will provide appropriate operation. The minimum integration-time specification, maximum readout speed and image-lag characteristics are meaningful only when the device is operated under suitable conditions. Purchasing and engineering should therefore reference the same approved manufacturer information when evaluating prototypes and production quantities.

The dedicated driver arrangement should be considered early in development. Hamamatsu identifies C11165-02 for the device, but the OEM should confirm how its final electronics will implement the required control signals and output acquisition. The driver circuit's function must be distinguished from the scientific instrument's complete controller, which is responsible for calibration, data processing and any user-facing analytical calculations. A detector can operate electrically yet fail to produce accurate spectra if the timing, optical focus or acquisition conversion is unsuitable. Engineering qualification should therefore include both signal acquisition tests and actual optical measurement tests.

Component samples should be evaluated within the intended instrument rather than only on a separate electronics bench. The prototype should use representative illumination, optical components and integration settings, enabling engineers to examine wavelength mapping, signal quality and readout behavior. Where the instrument will acquire rapidly changing signals, the evaluation should include bright-to-weak transitions and other sequences relevant to image lag. Where the equipment will measure ultraviolet information, the actual UV response should be assessed using suitable sources and references. A successful prototype should establish measurable acceptance criteria that can later be used during production rather than relying on subjective judgments of signal quality.

Mechanical integration requires attention to the ceramic package, quartz window and positioning of the effective sensing region. The detector should be mounted so that the optical system directs the dispersed spectrum onto the 28.672 mm sensing length and within the 500 µm photosensitive height. The relevant manufacturer mechanical drawing should guide the PCB and housing design, while handling procedures should protect the device from contamination and mechanical damage. A spectrometer can produce a strong electronic signal even when part of the spectral image is misaligned, so production testing should verify wavelength mapping and light collection across the intended range. The package configuration should remain part of the purchasing specification to avoid unreviewed mechanical substitutions.

For original equipment manufacturers researching industrial CCD sensor procurement, exact part-number control should extend beyond the first order. The manufacturer may offer related devices with different photosensitive heights or earlier product generations that have similar broad specifications. Those differences can influence optical geometry, image lag or the required electronic implementation. A procurement team should therefore seek engineering approval before accepting a proposed replacement. For example, a detector designed around Hamamatsu S11155-2048-02 should not automatically be converted to a taller-pixel device simply because both belong to a back-thinned CCD family. Any change should be evaluated against the finished instrument's measurement requirements.

Production quantity planning should reflect the number of detectors used in each finished instrument, expected manufacturing output and justified allowances for qualification or service needs. A compact analytical instrument may use one detector, while a specialized platform may contain several optical measurement channels. The order quantity should be calculated from the approved design and commercial production schedule rather than from an arbitrary assumption about component demand. Availability and lead time should be confirmed for the exact Hamamatsu device, especially where a manufacturer expects recurring shipments. Public product information does not establish immediate availability in every quantity, and the purchasing team should avoid making production commitments before the relevant supply details are confirmed.

Incoming inspection should verify that delivered components correspond to the approved part number and applicable purchase requirements. Optical semiconductors require suitable precautions during handling because electrostatic discharge, contamination or physical damage can affect the final instrument. The company may also establish functional testing at the PCB or instrument level according to its quality system. Visual inspection alone cannot establish whether the detector meets the scientific performance requirements, since wavelength calibration, electronic noise and optical alignment are properties of the assembled measurement system. Production acceptance procedures should therefore distinguish receiving checks from the testing needed to validate the finished equipment.

Long-term manufacturing introduces additional considerations related to component availability and technical documentation. The OEM should retain the manufacturer datasheet used during development and review relevant changes that could affect the approved design. If an alternative sensor becomes necessary, engineering should compare spectral response, pixel geometry, readout timing, mechanical construction and any application-specific requirements before authorizing the change. A device that fits electrically may still require optical recalibration or a different exposure procedure. The purchasing team should maintain a clear connection between the approved semiconductor and the material ordered for recurring production.

International buyers should also consider the commercial conditions associated with overseas sourcing. Kyptec Automation® publishes worldwide export enquiry information and provides a dedicated Image Sensor category for manufacturer-specific requests. An overseas OEM can identify Hamamatsu S11155-2048-02, state the desired quantity and provide the delivery destination for sourcing consideration. Commercial details such as pricing, availability, lead time, shipment terms and any necessary documentation should be confirmed for the actual transaction. Duties, taxes and importing procedures may also influence the total cost depending on the destination. A complete procurement decision should consider these factors alongside the technical requirement rather than focus exclusively on the component unit price.

Kyptec Automation® offers a useful manufacturer-focused enquiry route for specialized scientific image sensors. Its Image Sensor category covers Hamamatsu and other established semiconductor manufacturers, allowing equipment developers to communicate precise requirements for different optical technologies. For Hamamatsu S11155-2048-02, the value of a defined sourcing channel lies in preserving the manufacturer component already selected through engineering qualification. Actual commercial supply terms remain subject to confirmation, while the OEM retains responsibility for validating the detector's performance within the intended analytical instrument.

Frequently Asked Questions About Hamamatsu S11155-2048-02 CCD Image Sensor

1. What makes Hamamatsu S11155-2048-02 different from a conventional front-illuminated CCD detector?

Hamamatsu S11155-2048-02 uses a back-thinned CCD architecture developed for sensitive optical detection extending into the ultraviolet region. This differs from a conventional front-illuminated arrangement in which incident light interacts with structures on the front side of the semiconductor before reaching the photosensitive region. The back-thinned construction is intended to provide optical response characteristics useful for scientific measurement, particularly where short-wavelength detection matters. However, an OEM should not assume that the architecture is superior in every possible measurement condition. Actual performance depends on wavelength, source intensity, optical transmission, detector noise and the instrument's calibration method. Hamamatsu S11155-2048-02 also incorporates an integrated electronic shutter and resistive-gate charge-transfer structure, distinguishing it from a detector selected solely for ordinary imaging. The appropriate choice should be based on the complete manufacturer specifications and representative scientific measurements rather than a general preference for one CCD architecture.

2. Why does Hamamatsu S11155-2048-02 use a resistive-gate charge-transfer structure?

The resistive-gate structure is intended to support efficient signal-charge transfer through the detector's elongated photosensitive elements. Hamamatsu explains that conventional CCD transfer arrangements use multiple electrodes and changing clock voltages, while its resistive-gate approach creates a potential slope across a high-resistance electrode to assist charge movement. This is particularly relevant when the photosensitive element has a substantial vertical dimension, as in Hamamatsu S11155-2048-02 with its 500 µm pixel height. Efficient transfer is important because residual charge from an earlier exposure can contribute unwanted signal to later measurements. The manufacturer's design supports low image lag while maintaining the elongated geometry useful for spectroscopy. An OEM should still implement the specified timing and operating conditions because the architecture does not guarantee optimal performance under arbitrary drive signals. The benefit must be evaluated through actual acquisition sequences, especially where the instrument alternates between strong and weak optical measurements.

3. How does the built-in electronic shutter help a UV-visible spectrometer?

The integrated electronic shutter allows Hamamatsu S11155-2048-02 to control the interval over which useful optical signal is accumulated, providing flexibility for different illumination conditions. Hamamatsu specifies a minimum integration time of 2 µs, which can be relevant where the instrument observes a relatively bright source or needs to coordinate exposure with a short optical event. However, a short integration interval does not automatically provide an accurate measurement because the detector must still accumulate sufficient useful signal. An OEM measuring a weak ultraviolet source may require a longer interval than one monitoring a strong visible-light source. The shutter should therefore be incorporated into an acquisition method that accounts for the optical intensity, charge-transfer timing and expected noise. Measurements collected with different exposure settings may also require appropriate calibration or normalization. The practical advantage is controlled acquisition within a specialized CCD architecture, not the elimination of instrument-level measurement requirements.

4. What does the 0.1% typical image-lag specification mean for scientific measurements?

The typical 0.1% image-lag figure describes the low residual-signal behavior reported by Hamamatsu under specified characterization conditions. Image lag occurs when information associated with a preceding exposure influences a subsequent readout because not all relevant charge has been transferred or cleared as intended. In a spectrometer, this can become important when the instrument observes a bright source and then quickly measures a much weaker signal. Residual information may appear as an unwanted contribution in the later spectrum, potentially affecting interpretation of low-intensity features. Hamamatsu's resistive-gate structure is developed to reduce this effect, but the published typical value should not be interpreted as an absolute maximum for every operating condition. The OEM should test the intended bright-to-dark and bright-to-weak sequences using the actual timing and optical system. Suitable exposure control and calibration remain necessary even when the detector provides favorable image-lag characteristics.

5. Does the 500 µm pixel height improve light collection in every spectrometer design?

The 500 µm photosensitive height can be useful when the optical system projects a spectral image with a corresponding vertical extent, allowing the detector to collect light over a relatively tall region while preserving a 14 µm pitch along the wavelength axis. However, the benefit depends on the actual optical image geometry. If the illumination is concentrated into a much narrower region, the additional height may not produce a significant increase in useful signal. If the optical housing permits excessive stray light, a larger photosensitive area may also collect unwanted background. The instrument designer should therefore compare the entrance slit, grating, imaging optics and detector height before selecting the component. A taller sensing region does not create more independent wavelength channels or guarantee finer spectral resolution. The correct choice is the geometry that produces adequate useful signal and acceptable background for the intended analytical measurement.

6. Can Hamamatsu S11155-2048-02 measure wavelengths beyond the visible spectrum?

Hamamatsu specifies a spectral response extending from approximately 200 to 1100 nm, covering a portion of the ultraviolet spectrum, the visible region and part of the near-infrared. This makes the detector relevant to instruments requiring measurements beyond ordinary visible light. However, the response is wavelength-dependent, and the usable range of the completed spectrometer can be narrower than the semiconductor's nominal specification. The source must provide sufficient optical energy at the required wavelength, while the lenses, grating, window and any other optical components must transmit that energy effectively. A quartz window is included in the detector construction, but it does not independently establish ultraviolet transmission through the entire instrument. The OEM should evaluate the manufacturer spectral response curve and test the assembled equipment at the wavelengths that matter to the application. Nominal wavelength coverage should not be confused with equal sensitivity or guaranteed measurement accuracy throughout the range.

7. What is the difference between the 10 MHz readout speed and the maximum 4633-line-per-second rate?

The 10 MHz specification describes a maximum readout-related operating rate for the detector, while the maximum line rate of approximately 4,633 lines per second describes the upper rate at which complete linear acquisitions can be produced under specified operating conditions. These are related but different parameters, and neither should be confused with the number of scientifically useful calibrated spectra that a finished instrument can report every second. The practical measurement rate depends on integration time, clocking, analog conversion, processing and any averaging or reference procedures required by the analytical method. For example, a weak optical source may require a longer integration period, reducing the useful measurement frequency even though the detector supports faster electronic readout. The OEM should determine the actual data-acquisition requirement and evaluate the complete instrument accordingly. Maximum semiconductor speed is a design capability, not an independent guarantee of analytical throughput.

8. Why is the non-cooled operating configuration important when designing a compact spectrometer?

A non-cooled detector can simplify mechanical and electronic construction because the instrument does not require an active cooling system solely to operate the semiconductor. This can be useful in compact or cost-conscious equipment where space, power and assembly complexity matter. However, Hamamatsu S11155-2048-02 still exhibits dark current and other characteristics that depend on operating conditions. The manufacturer specifies a typical dark-current value under a particular temperature and MPP operating mode, and the practical contribution to a measurement depends on integration time. A laboratory instrument measuring strong optical signals may have different requirements from equipment acquiring very weak emissions over longer exposures. The OEM should therefore test representative operating temperatures and establish whether dark-reference correction is necessary. The absence of active cooling does not imply that thermal effects are irrelevant or that the device is unsuitable for scientific work. Suitability depends on whether the finished instrument meets its actual measurement uncertainty requirements.

9. Can Hamamatsu S11155-2048-02 be used to measure very weak ultraviolet emissions?

The detector's back-thinned architecture and spectral response extending into the ultraviolet make it relevant to the evaluation of weak UV optical signals, but detection capability depends on the actual photon flux, exposure conditions and instrument noise. A weak source may require longer integration or an optical arrangement that collects more useful light, while readout noise and dark signal can limit measurement quality. The manufacturer provides relevant specifications for evaluating these trade-offs, but the presence of ultraviolet sensitivity does not guarantee that every faint emission feature can be distinguished. The optical system must also transmit the intended UV wavelengths without introducing excessive background or stray light. An OEM should perform representative measurements using suitable reference sources and determine the practical detection limits required by the analytical method. Proper calibration and signal processing can improve interpretation, but they cannot recover information that has not been collected by the detector.

10. Does a 2048-pixel back-thinned CCD guarantee high-resolution spectroscopy?

The 2,048 effective sensing elements provide a defined number of samples along the dispersed spectral image, but actual spectral resolution depends on the optical system. The diffraction grating determines how wavelengths are separated spatially, while the slit width and imaging optics influence how sharply individual wavelength features are projected onto the detector. A narrow optical feature may occupy several pixels, meaning the instrument's resolving power can be coarser than the nominal wavelength spacing calculated from the number of elements. Hamamatsu S11155-2048-02 provides a 28.672 mm active length and 14 µm element pitch, which can be incorporated into optical design calculations. However, wavelength calibration and actual resolution testing remain necessary after the instrument is assembled. The detector contributes regular sampling positions and suitable optical response, but it does not independently determine the finished spectrometer's accuracy or resolving power. An OEM should verify these properties using known spectral references.

11. What is the purpose of the Hamamatsu C11165-02 driver circuit for this CCD?

Hamamatsu identifies the C11165-02 as a dedicated driver circuit associated with Hamamatsu S11155-2048-02. The driver supports the specialized operating requirements of the CCD, which uses charge-transfer clocks, electronic shutter control and other electrical conditions that must be applied correctly. Such an arrangement can be useful during technical evaluation because it provides a manufacturer-identified reference for operating the detector. However, the existence of a dedicated driver should not be confused with a complete scientific spectrometer controller. The finished instrument still needs appropriate optical hardware, analog acquisition, calibration and signal processing. An OEM designing its own production electronics should verify the applicable timing requirements and qualify the resulting hardware rather than assume that any generic CCD interface is suitable. Kyptec Automation® provides an Image Sensor enquiry channel for the exact Hamamatsu detector, while compatibility of the finished electronics remains an engineering responsibility.

12. How should an OEM evaluate the CCD's performance after switching from bright to weak light?

A useful evaluation should reproduce the actual sequence of optical conditions expected in the finished instrument. The test may involve a strong illuminated acquisition followed by a weaker or optically dark acquisition, with the CCD operated using its intended shutter and charge-transfer timing. The manufacturer should measure whether unwanted residual signal affects the later result and determine whether the observed behavior meets the instrument's measurement uncertainty requirement. Hamamatsu S11155-2048-02 is designed for low image lag through its resistive-gate structure, but actual performance depends on timing, signal intensity and the acquisition method. The OEM should also distinguish residual charge-related effects from ordinary dark signal and electronic offsets, since those phenomena may require different corrective approaches. Representative testing is especially important where a spectrometer alternates rapidly between calibration sources, reference samples and weak emissions. A favorable datasheet value provides a technical starting point, while instrument-level measurements establish suitability.

13. Is Hamamatsu S11155-2048-02 interchangeable with Hamamatsu S11156-2048-02?

The two devices belong to a related back-thinned CCD family and share important specifications, including 2,048 effective elements, a 14 µm pitch and nominal 200–1100 nm spectral response. However, the photosensitive height differs: Hamamatsu S11155-2048-02 uses 500 µm elements, while Hamamatsu S11156-2048-02 uses 1000 µm elements. That difference may influence light collection, background sensitivity and suitability for a particular optical image geometry. The manufacturer also provides model-specific timing information that should be reviewed before considering any substitution. An OEM should therefore compare the applicable datasheets and determine whether the existing optics, electronics and calibration method remain appropriate. Even if related devices share some electrical and mechanical characteristics, the change should be qualified rather than assumed compatible. Purchasing personnel should maintain the exact approved manufacturer designation until engineering has authorized any alternative.

14. What should buyers verify before placing a bulk order for Hamamatsu S11155-2048-02?

The purchasing team should confirm that the requested component is Hamamatsu S11155-2048-02, including the correct back-thinned CCD configuration, package and relevant manufacturer documentation. The engineering-approved bill of materials should identify the exact part number used during instrument qualification, while the quotation should specify the required quantity, availability, expected lead time and delivery destination. If the OEM requires particular documentation or handling conditions, these should be communicated and confirmed for the proposed transaction. Kyptec Automation® provides a dedicated Image Sensor category through which buyers can submit the manufacturer, exact part number and quantity, offering a focused commercial enquiry route for scientific detectors. The published category does not guarantee immediate stock of every requested semiconductor, so actual supply conditions must be verified before production commitments are made. Accurate identification helps maintain consistency between the detector evaluated during development and the one installed during recurring manufacture.

15. Can international spectrometer manufacturers request Hamamatsu S11155-2048-02 through Kyptec Automation®?

Kyptec Automation® publishes a dedicated Image Sensor sourcing category that includes Hamamatsu and provides worldwide export enquiry information. International OEM manufacturers can communicate their requirement for Hamamatsu S11155-2048-02 together with the exact part number, intended quantity and delivery destination for sourcing consideration. This is useful where the detector has already been qualified within an approved optical and electronic architecture and purchasing needs to preserve that precise component identity. Actual availability, price, lead time and shipment arrangements must be confirmed for each enquiry, since the public category does not independently establish inventory of every model in every quantity. Overseas purchasers may also need to consider applicable import requirements and receiving procedures when planning the order. The commercial sourcing process supports a clearly identified component requirement, while the equipment manufacturer remains responsible for validating the performance of the completed spectrometer.

16. Why should scientific instrument OEMs consider Kyptec Automation® for Hamamatsu CCD sourcing?

Kyptec Automation® provides a focused Image Sensor offering covering Hamamatsu and other established semiconductor manufacturers, allowing buyers to submit the precise manufacturer and part number required by their engineering design. This is particularly relevant for Hamamatsu S11155-2048-02 because the device incorporates specialized back-thinned detection, an electronic shutter and resistive-gate charge transfer that may be central to the instrument's approved operation. Once the CCD has been qualified, purchasing should avoid substituting an apparently similar detector without engineering review. Kyptec Automation® provides a practical contact point for a defined scientific semiconductor enquiry and publishes international export details for OEM buyers outside India. Its wider Image Sensor coverage may also be relevant to different equipment projects, but other models should be considered according to their own technical characteristics. Commercial availability, pricing and delivery terms should be confirmed for each requested order, while instrument-level scientific validation remains the responsibility of the OEM.

Conclusion: Hamamatsu S11155-2048-02 Back-Thinned CCD Technology for Scientific Spectroscopy and Global OEM Supply

Hamamatsu S11155-2048-02 is a specialized back-thinned CCD linear image sensor designed for scientific optical acquisition, combining 2,048 effective sensing elements with an elongated 14 × 500 µm photosensitive geometry. Its 28.672 mm active length and nominal 200–1100 nm spectral response provide a foundation for optical instruments that need to collect wavelength-dependent information across a broad ultraviolet-visible and near-infrared region. The back-thinned construction is particularly relevant where short-wavelength sensitivity matters, while the larger photosensitive height can support optical arrangements that project a correspondingly tall spectral image. However, actual analytical performance depends on the complete instrument, including light-source characteristics, optical transmission, wavelength calibration and the control of unwanted signals.

The device's integrated electronic shutter and resistive-gate charge-transfer structure are important distinctions from ordinary linear detectors. The shutter provides controlled integration capability, including a specified minimum integration time of 2 µs, while the resistive-gate arrangement is designed to support efficient charge transfer and low image lag. These properties can be useful when instruments acquire rapidly changing optical signals or alternate between bright and weak measurements. Nevertheless, they do not eliminate the need for appropriate driver electronics, representative testing or scientifically valid correction procedures. The manufacturer's published noise, dark-current and image-lag values should be interpreted within their stated operating conditions rather than treated as universal guarantees of finished-system performance.

OEM manufacturers should also consider the mechanical and electrical requirements associated with the semiconductor. Hamamatsu S11155-2048-02 uses a ceramic package and quartz window, with specialized CCD operating characteristics that must be implemented correctly. The manufacturer identifies a dedicated driver circuit, providing a relevant technical reference for evaluation and integration. Proper detector alignment is necessary because the optical system must project the intended wavelength interval onto the active sensing region, while suitable calibration is required to associate sensing positions with actual wavelengths. A different CCD with similar pixel count may require changes to the optics, electronics or measurement method, making exact manufacturer part-number control essential during recurring production.

Kyptec Automation® provides a dedicated image sensor supplier in India enquiry channel covering Hamamatsu scientific detectors for OEM purchasing requirements. Spectrometer developers, analytical equipment manufacturers and international procurement teams can submit their requirement for Hamamatsu S11155-2048-02 together with the quantity and destination for sourcing consideration. The company's Image Sensor offering provides a focused contact route for precise semiconductor requirements, while actual availability, pricing, shipment conditions and documentation should be confirmed for the requested transaction.

A dependable procurement and integration strategy for Hamamatsu S11155-2048-02 begins with a clear scientific measurement requirement and continues through wavelength-specific evaluation, correct CCD timing, optical qualification and precise component sourcing. When these factors are maintained consistently from prototype development to recurring manufacture, OEMs can establish a stronger foundation for reliable UV-visible spectroscopy and specialized analytical equipment. The objective is to select and obtain the semiconductor that genuinely supports the instrument's measurement requirements while preserving the detector architecture and performance established during engineering qualification.