Thermopile detector


High-sensitivity, for gas density measurement, built-in thermistor


The T11361-01 is a thermopile detector equipped with an internal thermistor for compensating for outuput variations caused by changes in the ambient temperature. It uses a TO-18 package with a window having high transmittance in the 3 to 5 μm spectral band. By attaching an external band-pass filter to the thermopile detector, it can be applied to various types of gas density measurements.



- Spectral response: 3 to 5 μm
- TO-18 package
- High sensitivity
- Built-in thermistor

Package TO-18
Photosensitive area 1.2 x 1.2 mm
Spectral response range 3 to 5 μm
Photosensitivity (typ.) 50 V/W
Noise equivalent power (typ.) 0.9 nW/Hz1/2
Detectivity (typ.) 1.3 x 108 cm・Hz1/2/W
Rise time (typ.) 20 ms
Rise time (max.) 30 ms
Temperature coefficient of element resistance (typ.) ±0.1 %/℃
Field of View (typ.) 90 degree

Spectral transmittance characteristics of window material (typical example)

Dimensional outline (unit: mm)

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