A thin film-based thermopile offering very low noise and a small 0.5mm diameter active area in a TO-5 package. This is one of the lowest noise thermopiles you can buy and provides a time constant 28ms time constant with Argon encapsulation gas.
Excellent for non-contact temperature measurement.
Small active area with medium signal-to-noise ratio.
M5 Detector circuit overlay
M5 Thermopile Detector
For more detailed information see the datasheet:
| Parameter | Min | Typical | Max | Symbol | Units | Comments |
|---|---|---|---|---|---|---|
| Active Area size | Ø.5mm Dia. | AA | mm | Hot junction size, per element. | ||
| Element Area | .196 | A | mm2 | |||
| Number of Junctions | 10 | Per element. | ||||
| Number of Channels | 1 | Per detector package. | ||||
| Output Voltage | 22 | 35 | 45 | Vs | μV | DC, H=330μW/cm2 (3) |
| Signal-to-Noise Ratio | 2,716 | 5,000 | 7,895 | SNR | √Hz | DC, SNR=Vs/Vn |
| Responsivity | 34.0 | 54.1 | 69.6 |  |
V/W | DC, =Vs/HA (2) |
| Resistance | 2.0 | 3.0 | 4.0 | R | kΩ | Detector element |
| Temperature Coefficient of |
-.36 | %/°C | Best linear fit, 0° to 85°C (1) | |||
| Temperature Coefficient of R | -.2 | %/°C | Best fit, 0° to 85°C (1) | |||
| Noise Voltage | 5.7 | 7.0 | 8.1 | Vn | nV/√Hz | Vn2=4kTR |
| Noise Equivalent Power | .08 | .13 | .24 | NEP | nW/√Hz | DC, NEP= VnHA/Vs (2) |
| Detectivity | 1.9 | 3.4 | 5.4 | D* | 108√Hz/W | DC, D*=Vs/ VnH√A (2) |
| Time Constant | 28 | Τ | ms | Chopped, -3dB point (1) | ||
| Field of View | 64°/78° | FOV | Degrees | See Assembly Drawings for FOV Description. | ||
| Package Type | TO-5 | Standard package hole size:Ø.080 | ||||
| Operating Temperature | -50 | 100 | Ta | °C |
Specifications apply at 23°C with KBr Window and Argon encapsulating gas.
Flat spectral response from 100nm to > 100µm. Linear signal output from 10-6 to 0.1W/cm2. Maximum incident radiance 0.1W/cm2 , damage threshold ≥ .5W/cm2