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If certain specifications are unfamiliar to you, simply click the corresponding links to acquire their definitions.

Material:	Detector Material	Lead Sulfide (PbS) Lead Selenide (PbSe) Other Material
	Specify if Other Material
	Device Type	Single-Element Multi-Element Thermoelectrically Cooled (one stage) Thermoelectrically Cooled (two stage) Thermistor Detector Imersed on Optical Element Detector-Filter Combination
Device:	Single/Multi-element Devices	Flat Plate (unpackaged) TO-5 TO-8 TO-37 Other
	Specify if Other Device
	Sensitive Area Dimensions
	Overall Dimensions
Arrays:	Number of Detector Elements
	Multiplexer Required	YES NO
Pixels:	Sensitive (Active) Area
	Overall Area
	Distance Between Elements
	Overlap (if staggered array)
	Electrode Width
Packaging:	Specified Configuration	YES NO
	Thermoelectric Cooler	YES NO
	Hermetic Seal	YES NO
Conditions:	Radiation Source Temp	500 773 1000 Degrees Kelvin
	Specify if Other Temp	Degrees Kelvin
	Application Wavelength(s)	Nanometers
	Source Modulation Frequency	Hz
	Operating Temperature Range	Degrees Celsius
	Load Resistance	Mohms
	Maximum Bias Voltage	Volts
Performance:	D* , f, 1  in  cm - Hz1/2 - W -1
	Resistance	Mohms
	Test Temperature	Degrees Celsius
	Responsivity , f in  V/W
	Time Constant	Microseconds
Quantity:	Number of Units
Use:	Application
	Comments
Customer:	Your Name
	Title
	Organization Name
	Street Address
	City, State, & Zip
	E-mail
	Telephone

Definitions and Application Notes

Detector Material

In addition to the present lines of Lead Sulfide and Lead Selenide detector devices, SensArray Infrared also offers Silicon Avalace and Germanium Avalance Photodiodes, Indium Gallium Arsenide (1.3-1.55µ), Indium Gallium Arsenide (2.1µ peak), Indium Gallium Arsenide (3.3µ peak), and Indium Antimonide PV photodiodes (single and multi-element format). If your requirements dictate other spectral lines or other detector materials please inquire as to availability. back to form

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Application Wavelength(s)

If your application requires a particular wavelength or several wavelengths, then a specific spectral wavelength or spectral range may be requested. Since SensArray Infrared detectors can be optimized for certain wavelength regions and supplied with integrated optical filters, please do not hesitate to tell us what your spectral requirements may be. back to form

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Source Modulation Frequency

Operating Frequency or frequency response should be identified since photoconductors respond differently to modulation radiation. Frequency response is a plot of signal voltage output as a function of modulation frequency of the input radiation. It is helpful to know your operating frequency requirements for these devices. back to form

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Load Resistance

Since lead salt devices are intrinsic photoconductors operating, for the most part, in voltage mode, a series bias resistor is required for optimum signal to noise conditions to prevail. This device is usually matched to the cell resistance for maximum power conditions. back to form

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Bias Voltage

Lead Salt devices are at quiescent or optimum bias conditions for signal and noise at approximately 20 volts per square millimeter of active area. back to form

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D* or D*Jones

D* is an area dependant figure of merit defined as the rms signal-to-noise ratio in a one hertz bandwidth per unit rms incident radiant power per square root of detector area. D* is further defined as response to a monochromatic radiation source or as response to a radiant blackbody source. Please specify D* in terms of spectral (l)  or blackbody (BB). back to form

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Test Temperature

The test temperature should be defined as close to the actual operating temperature as possible. Devices can be operated at ambient temperature, moderately cooled with a thermoelectric cooler, or cooled to mid range with closed cycle or liquid coolant. These devices require special packaging. back to form

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Responsivity

A measurement of the dependence of the signal output of a detector upon the input radiant power. Please specify in terms of blackbody reference temperature or spectral (l) responsivity. back to form

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Time Constant (Responsive Time)

Signal voltage output as function of the modulation frequency of the input radiation. Time constant is given by the point at which the voltage output is 3db or 0.707 down from zero frequency. Please specify required time constant range. back to form