Thermopile detector


High sensitivity, for flame detection


The T15770 is a high-sensitivity thermopile detector suitable for flame detection. Infrared energy generated from flame has spectral characteristics of peak wavelength 4.45 μm. The light input window of the T15770 employs the band-pass filter which passes the light of this wavelength.


- Spectral response: 4.45 μm
- TO-18 package
- High sensitivity

Package TO-18
Photosensitive area 1.2 x 1.2 mm
Spectral response range 4.45 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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