3 Watt Cooled PbSe Detectors
3 Watt Cooled PbSe Detectors

3 Watt Cooled PbSe Detectors can extend the wavelength range of detectable gases, increase signals, and improve the detection rate and signal-to-noise ratio of the lead Selenide detector.

Compared with 2 Watt Cooled PbSe Detectors, the 3 Watt Cooled PbSe Detectors can have the higher signal, thus, it is suitable for the lower LDL gas detection.

3 Watt Cooled PbSe Detectors is also an ideal choice for applications in temperature changing environments, as by adjusting the TEC current, the temperature of the infrared detector element can be maintained stable, reducing the detection signal drift caused by temperature changes.

Supplier:Infrared Materials 

Package: TO-66, TO-8


INTRODUCTION

Brand Introduction:

 

Infrared Materials Incorporated is a manufacturer of high performance Lead Sulfide (PbS) and Lead Selenide (PbSe) IR detectors and array components, sensitive in the IR spectral range of 1– 5.5 microns.  PbS and PbSe detectors are commonly used as the critical sensing element in commercial process control systems, industrial gas monitors, spectroscopy, imaging, and medical CO2 gas analyzers, fire & spark detection systems, combustion control systems, moisture analyzers, and flash detection systems. 

 

Infrared Materials has extensive experience in building drop-in replacement assemblies in single and multi-channel configurations to match the form, fit, and functional requirements of one-off prototype projects and production level programs.  The detectors are produced in Santa Rosa, California and distributed through representatives worldwide.


Key features:
     3 Watt TEC Cooled
     High sensitivity of 1–5.5um Wavelength

     TO-66, TO-8 Package
     Sapphire windows, specific wavelength filters, etc

Specification:

Ambient Temperature:+25°C
Detector Operating Temperaturesee model types below
Typical Cooler Power at or near Max. Cooling:1.8 volts @ 1.2 amps
Standard Specifications – Electrical
All detector specifications are at a bias voltage of 35 V/mm distance between electrodes applied across the detector and with a one MegOhm load resistor in series. All specifications apply at or near maximum cooling with the heat sink @ +25°C.

MinimumTypicalMaximumUnits
Wavelength of Max. Response4.34.5
µm
D*(λpk, 1050 Hz, 1 Hz)2.0 x 10103.5 x 1010
cm Hz1/2 w-1
Element Resistance (Dark)1.06.020.0MegOhm
Time Constant (not typically measured)
1225µsec
Rated Element Temperature

+85°C
Delta T at or near Max. Cooling
SEE BELOW
°C

When using the table below, remove parenthesis and insert appropriate designation for package type in the space. Example: 6 for TO-66, 8 for TO-8.

Model NumberElement
Size 
(mm)
Responsivity (lpk, 1050) v/wOperating TempStandard Package Options
MinimumTypical
B1-( )C4T1 x 1126,000190,000-50°CTO-66, TO-8
B2-( )C4T2 x 263,00095,000-50°CTO-66, TO-8
B3-( )C4T3 x 338,00056,000-45°CTO-66, TO-8
B6-( )C2T6 x 618,00027,000-25°CTO-66, TO-8
* Minimum D*(lpk, 1050, 1) >1.5 x 1010 cm Hz1/2 w-1*


Typical applications:

     NDIR Gas Sensing
     Target gas includeCO,CO2,CH4,TVOC,C2H4