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Thermopile Detector / Radiometer
Temperature Sensor Module

Electrical Optical Components offers high performance pyroelectric and thermopile detectors as well as IR sources.

Detectors that measure radiation by means of the change of temperature of an absorbing material are classified as thermal detectors. Pyroelectric and thermal detectors respond to any wavelength radiation that is absorbed and can be made to respond over a wide range of wavelengths.
  • The most common thermal detectors used in the infrared (IR) applications are the pyroelectric and thermopile detectors.
  • The most sensitive thermopile (higher Detectivity) is made from bismuth-antimony (BiSb) instead of silicon.
Pyroelectric Detectors
Infrared filters

Infrared Pulsed IR Sources

Thermopile detectors are voltage-generating devices, which can be thought of as miniature arrays of thermocouple junctions.
Micro-Hybrid GmbH is certified to TS 16949:2009 and ISO 9001:2008. Copies of these certifications are under Technical Notes. These certifications are a reflection of their commitment to quality and product improvement.

Applications include:

  • Non-contact temperature measurement
  • Spectrometers
  • Tympanic thermometers
  • Gas analysis
  • Process temperature monitoring
  • Fire & flame Detection
  • Household appliances
  • Explosion detection
  • Radiometers
  • Presence monitor
  • Far Infrared (FIR) detection up to 300μm and beyond
Each channel of the thermopile detector is fitted to the application by using an infrared filter or window. EOC has a broad selection of Standard Filters and Windows for these applications. Custom Filters and windows are also available.

To avoid damaging thermopile detectors during soldering and cleaning, consider using sockets.
Model Channels Detector Size
Aperture Size mm Thermistor Noise Equivalent Power nV/Hz1/2 Detectivity
*10 8th/cmHz1/2W
Time Constant ms Junctions Package
Single Channel Thin Film Technology (BiSb) Thermopile Detectors
TS1x200B-A-D3.55- 1 1.2x1.2 Ø3.55 Y 0.33 3.6 30 200 TO39
TS1x200B-B-D2.4- 1 1.2x1.2 Ø2.4    0.33 3.6 30  200 TO46
TS1x80B-A-D0.48- 1 Ø0.5 Ø0.48 Y  0.06  7.2 40  80  TO39
TS1x80B-A-D0.75- 1 Ø0.5 Ø0.75   0.06  7.2 40 80 TO39
Cambridge CMOS Single Channel MEMS SOI Thermopile Detectors
CCS201 1 0.3mm2 Ø2.55     0.38 8 40 TO-46
CCS202 1 1.13mm2 Ø2.55     0.42 20 80 TO-46
Far Infrared (FIR) BiSb Thermopile Detectors
TS1x72B-A-D2.5-Kr-  1 Ø0.5  Ø2.5 Y  0.26  3.44 35 72  TO39

Multi-Channel Thin Film Technology (BiSb) Thermopile Detectors

TS2x200B-A-S1.5- 2 1.2x1.2 1.5x1.5 Y 0.33 3.6 30 2x200 TO39
TS4x200B-A-S1.5- 4 1.2x1.2 1.5x1.5 Y 0.33 3.6 30 4x200 TO39
TS4xQ200B-A-S1.5- 4 1.2x1.2 1.5x1.5 y 0.41 2.95 30 4x200 TO39
TS8x200B-TO8-S1.5- 8 1.2x1.2 1.5x1.5 Y 0.33 3.6 30 8x200 TO8
High Temperature Components - 180° C Operation
TS1x80B-A-D0.75-0-N2-B1-180 1 Ø0.5 Ø0.75   0.06 7.2 36 80 TO39
TS2x80B-A-D0.75-0-N2-E1/D1-180 2 Ø0.5 Ø0.75


  0.06 7.2 36 80 TO39
Thermopile Array
TPL640 64 0.68mm2 36.1x3.9 Y - 2 0.08 10.8 110 64x30 22x54mm
High Temperature Gas & Liquid Measurement Module - Sterilization Temperature Resistant
TS1x80X-HT 1 High Temperature Gas & Liquid Measurement (CO2, etc.)
TS2x180X-HT 2 High Temperature Gas & Liquid Measurement (CO2, etc.)

Technical Notes:
Thermopile Properties & Applications
Backfill Gas Influence on Sensitivity
Detector Options influence on Detector Performance
NDIR Gas Detection
Standard Thermistors
Detector Performance Terminology
  Detector Options:
Standard Infrared Filters and Windows
Custom Infrared Filters & Filter Sizes
NDIR Filter Requirements
Standard Thermistors