OTP-538U Description
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 posed 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.