RTTA71 Thermopile Temperature Sensor
With High precision NTC
Applications :
*Non-contact temperature measuring;
*Infrared thermometer, such as ear temperature and forehead temperature measurement;
*Household appliances (Microwave oven, hair dryers, air conditioners etc), intelligent temperature induction and control system.
Product Advantages:
- *TO-46 metal package
- *High sensitivity
- *Quick response, Good stability
- *High filter transmittance
- *High precision NTC
Product Description:
RTTA71 thermopile sensor is based on MEMS technology, consists of hundreds of thermocouples connected in series. Using Seebeck principle, when there is a temperature difference between the target and the environment, the sensor gives the corresponding voltage output, therefore detecting the existence of the target or the temperature of the target.
Technical Parameters:
| Parameter | Value | Unit | Remarks |
| Chip size | 1.35×1.35 | mm | / |
| Field of view | 95 | Degree | Above 50% |
| Thermopile resistor | 76±10 | KΩ | 25℃,1V |
| Noise voltage | 38 | nV/Hz1/2 | 25℃ |
| Noise equivalent power | 0.23 | nW/Hz1/2 | 500K, 1Hz, 25℃ |
| Response rate | 160±40 | V/W | 500K, 1Hz, 25℃ |
| Temperature coefficient of resistance | 0.06 | %/℃ | 25℃~75℃ |
| Time constant | ≤13 | ms | |
| Detection rate | 1.5 ×108 | cmHz1/2/W | 500K, 1Hz, 25℃ |
| NTC resistance | 100 ±1％ | KΩ | 25℃ |
| NTC(β) | 3950 ± 1％ | / | 25℃/50℃ |
| Working temperature | -30 ~ 125℃ |
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