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THERMOPILE
Thermopile Sensor OTP-538U
Revision Date: 2009/09/09
OTP-538U
Introduction
The OTP-538U is a thermopile sensor in classic TO-46 housing. The sensor is composed of 116 elements of thermocouple in series on a floating micro-membrane having an active diameter of 545 μm and with blacken surface to absorb the incident thermal infrared radiation, which induces a voltage response at output terminals. The sensor chip is fabricated by a unique front-surface bulk micromachining technology, which result in smaller size and faster to response ambient temperature change.
The IR window is a bandpass filter having its 50% cut-on wavelength at 5 μm, and cut-down at 14μm.
OTP-538U Datasheet
