HTS A-Series


HTS A-Series

The HTS Series provides single element thermopile sensors in standard TO-39 packages. The sensor supports a fully modular concept. You can choose a thermopile sensor chip and a top mounted infrared filter according to your application. Additionally, the sensor can be equipped with an optional thermistor providing temperature reference.

Features and Benefits

  •     TO-39 package
  •     3 thermopile sensor chip options
  •     Large number of filter options
  •     Optional thermistor temperature reference
  •     Large operating range -20°C to 120°C



 HTS A11HTS A1c1HTS A21HTS A31Unit
Element size0.6²0.76²1.2²2.1²mm²
Voltage response223063115V mm² / W
Sensitivity58524426V / W
Resistance R_TP86758488kOhm
TC of resistance R_TP0. / K
Noise38353738nV / Hz½
Detectivity0.9e81.1e81.4e81.5e8cm Hz½ / W
Time constant< 581018ms
Thermistor reference100100100100kOhm
Temp. coeff. of thermistor3940394039403940K
Field of view70707070degree
Operating temperature-20 .. 120-20 .. 120-20 .. 120-20 .. 120°C
Storage temperature-40 .. 120-40 .. 120-40 .. 120-40 .. 120°C

Filter Options

Temperature Measurements

Gas Concentration Measurements