TP series

TP series

Thermopiles are IR temperature sensors that fully utilize SEMITEC original silicon-micromachining technology. SEMITEC’S thermopiles are fully compliant with RoHS DIRECTIVE2011/65/EU.


Ear thermometers, IR thermometers, microwave ovens and other non-contact temperature sensing applications.


Connection Diagram


Parameters Value Unit Conditlons
Sensitive area 1.05×1.05 mm2 Size of Absorbing Film
Responsivity 15±30% V/W
Output Voltage※1 200±30% μV
Output Voltage※2 1.00±30% mV
Temperature Coefficient of
0.02±0.02 %/℃ Refarence
Themopile Resistance 65±30%
Temperature Coefficient of
Themopile Resistance
±0.1 %/℃
Johnson Noise Voltage 33 nV/√Hz Johnson Noise r.m.s.,298K,1Hz Typical
S/N Ratio※1 75.7 dB Output Voltage / Johnson Noise,Typical
Noise Equivalent Power※1 2.2 nW/Hz1/2 Typical
Specific Detectivity※1 4.7×107 cm・Hz1/2/W Typical
Time Constant 15 ms Typical
Operating Temperature
Storage Temperature Range -40〜100
Filter Range Cut
on 5
μm Standard
Field of View ±50 deg. Incident Angle to Achive 50% Responsivity
Insulation Resistance ≧500 Application of DC25V
Sealing ≦1×10-9 Pa・m3/s
Thermistor Resistance Value 100+3% Rated zero-power resistance Value at25℃
Thermistor B-Value 3435±0.7% K Determined by rated zero-power
resistance value at25℃ and 85℃
Variation within same Lot. ±0.2%

Test Conditions(Test Condition)
Blackbody Furnace:500K (Black body Temperature)
Sensor - Blackbody Distance: 100mm (Sensor-Blackbody Distance)
Sensor Temperature: 298K(Sensor Temperature)
Aperture Size: φ12.7mm(Aperture size)

Test Conditions(Test Condition)
Blackbody Furnace:310K(Black body Temperature)
Sensor Temperature: 298K(Sensor Temperature)