MRT-511 Thermopile temperature sensor
Product description
MRT-511 type sensor is a thermopile temperature sensor, based on MEMS process, hundreds of thermocouples are connected in series. Using Seebeck’s principle, when there is a temperature difference between the target and the environment, the sensor outputs a corresponding voltage, thereby detecting the presence or temperature of the target.
Sensor characteristics
TO-46 package, high sensitivity; fast response; good stability; high filter transmittance; high NTC accuracy.
Main application
1. Non-contact temperature measurement;
2. Infrared thermometers such as ear temperature and forehead temperature; u Continuous temperature control of the production process;
3. Temperature measurement and control of household appliances (microwave ovens, hair dryers, air conditioners, etc.);
4. Human presence detection.
Technical index
| Performance | Value | Unit | Remarks |
| Sensitive size | 1.6×1.6 | mm | / |
| Angle of view | 105 | Degress | ＞50% |
| Thermopile resistance | 120±30 | KΩ | 25℃ |
| Noise voltage | 45 | nV/Hz1/2 | 25℃ |
| Noise equivalent power | 0.27 | nV/Hz1/2 | 500K，1Hz，25℃ |
| Response rate | 124 | V/W | 500K，1Hz，25℃ |
| Time constant | 10 | ms | / |
| Detection rate | 1.0×10 8 | cmHz1/2/W | 500K,1Hz，25℃ |
| NTC resistance | 100±3％ | KΩ | 25℃ |
| NTC（β） | 3950±1％ | / | 25℃/50℃ |
| Operating temperature | 30~100 | ℃ | / |
| Storage temperature | 40~100 | ℃ | / |
