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. Flame detection TO-18 package High sensitivity Absolute maximum ratings Parameter Symbol Specification Operating temperature Topr -30 to +85 Storage temperature Tstg -40 to +125 Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the within the absolute maximum ratings. Structure Parameter Photosensitive area Package Window material Electrical and optical characteristics (Ta=25 °C) Parameter Spectral response Photosensitivity Element resistance Noise voltage Noise equivalent power Detectivity Rise time Temperature coefficient of element resistance Field of view Condition 1 Hz, 500 K Johnson noise
Open the catalog to page 1Thermopile detector Spectral transmittance characteristics of window material (typical example) Relative light output
Open the catalog to page 2Thermopile detector Dimensional outline (unit: mm) 5.4 ± 0.2 4.6 ± 0.2 Light input window Photosensitive area 1.2 × 1.2 Light input window Thermopile (-) Case Precautions The T15770 band-pass filter has a second order transmission at wavelength 10 μm or higher. If the effect of the second order transmission cannot be ignored, install a sapphire glass or the like in front of the light input window. Related information www.hamamatsu.com/sp/ssd/doc_en.html Precautions ⸱ Disclaimer ⸱ Metal, ceramic, plastic package products The content of this document is current as of February 2021. Product specifications...
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