OTC-236

www.DataSheet4U.com OTC-236 THERMOPILE INFRARED SENSOR ▓ Features The thermopile sensor consists of a series of 44 thermoelements, forming a sensitive area of 0.5*0.5 mm2. The sensor is hermetically sealed into a TO-5 metal housing, with an optical filter. This standard filter allows measurements to be made in the spectral range above 5 µm wavelength. The thermosensor exhibits an almost white noise, comparable to an ohmic resistance. It has a constant signal versus frequency up to its frequency limit, and is directly proportional to incident radiation. ▓ Applications * Ear thermometers; clinic thermometers * Infrared thermometers * Consumer applications: hair dryer, micro-wave oven, air conditioner, refrigerator * Continuous temperature control of manufacturing * Security system * Radiation monitor switch system * Absorbing measurement for gas analysis * Thermoelectric converter * Heat flux flowmeter www.DataSheet4U.com ▓ Electrical Characteristics Parameter Thermopile Number of thermojunctions Chip size Active area Condition Min. Typ. Max. Unit ----Interference layer Siliconsubstrate 25 °C With 5-14µm filter --- 44 1920*1725 500*500 ------µm2 µm2 Thickness of substrate Resistance of thermopile Sensitivity Detecctivity Time constant Noise voltage NEP Temperature range 600 60 40 4*107 ------- 625 70 55 7*107 30 34 0.8 --- 650 80 70 9*107 ------100 µm KOhm V/W cm*Hz1/2/W Ms nV/Hz1/2 nW/Hz1/2 °C Operation -20 Measured at 1 Hz chopper frequency, within sp...