A single-channel thin film-based thermopile offering very low noise in a compact TO-18 package with a small active area of 0.92mm x 0.4mm. This is one of the lowest noise thermopiles you can buy and provides a fast 14ms time constant with Argon encapsulation gas.
Excellent for ear thermometers and handheld non-contact temperature measurement.
Small package size and very low noise with lower signal-to-noise ratio.
M14 Thermopile Detector
M14 Detector circuit overlay
For more detailed information see the datasheet:
| Parameter | Min | Typical | Max | Symbol | Units | Comments |
|---|---|---|---|---|---|---|
| Active Area size | .92 x .4 | AA | mm | Hot junction size, per element. | ||
| Element Area | .368 | A | mm2 | |||
| Number of Junctions | 12 | Per element. | ||||
| Number of Channels | 1 | Per detector package. | ||||
| Output Voltage | 15 | 20 | 25 | Vs | μV | DC, H=330μW/cm2 (3) |
| Signal-to-Noise Ratio | 1,852 | 2,857 | 5,000 | SNR | √Hz | DC, SNR=Vs/Vn |
| Responsivity | 12.4 | 16.5 | 20.6 |  |
V/W | DC, =Vs/HA (2) |
| Resistance | 1.5 | 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 | 5.0 | 7.0 | 8.1 | Vn | nV/√Hz | Vn2=4kTR |
| Noise Equivalent Power | .24 | .43 | .66 | NEP | nW/√Hz | DC, NEP= VnHA/Vs (2) |
| Detectivity | .93 | 1.4 | 2.5 | D* | 108√Hz/W | DC, D*=Vs/ VnH√A (2) |
| Time Constant | 14 | Τ | ms | Chopped, -3dB point (1) | ||
| Field of View | 53°/105° | FOV | Degrees | See Assembly Drawings for FOV Description. | ||
| Package Type | TO-18 | 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
(1) Parameter is not 100% tested. 90% of all units meet these specifications.
(2) A is detector area in cm2.
(3)Test Conditions: 500K Blackbody source; Detector active surface 10cm from 0.6513cm Diameter Blackbody Aperture.