Thermometrics Infrared (IR) Sensors
ZTP-135BS
Thermometrics ZTP-135BS Infrared (IR) Sensors consist of thermo-elements, flat infrared filter and a thermistor for temperature compensation, all in a hermetically-sealed TO-46 (18) package. There are also a variety of filters available to help maximize performance in specific applications. Thermopile IR Sensors are used for non-contact, or infrared, surface temperature measuring.

- Industrial IR thermometer
- Ear thermometers
- Non-contact thermometers
- Small in size (TO-46 package)
- Included ambient temperature (thermistor) sensor for compensation
- Fast response time
- Low cost
- High sensitivity
Thermopile Chip
| Parameter | Limit Min | Limit Typ | Limit Max | Units | Conditions |
| Chip Size | 1.8 x 1.8 | mm2 | |||
| Diaphragm Size | 1.4 x 1.4 | mm2 | |||
| Active Area | 0.7 x 0.7 | mm2 | |||
| Internal Resistance | 42 | 60 | 78 | kΩ | 25°C |
| Resistance T.C | 0.12 | %/°C | |||
| Responsivity | 38 | 54 | 70 | V/W | 500K, 1 Hz |
| Responsivity T.C | -0.03 | %/°C | |||
| Noise Voltage | 32 | nV rms | R.M.S., 25°C | ||
| NEP | 0.59 | nW/Hz½ | 500K, 1 Hz | ||
| Detectivity | 1.18 E08 | cmHz½/W | 500K, 1 Hz | ||
| Time Constant | 25 | ms |
- ZTP-135BS




