The document describes the features and characteristics of the product, including frequency response, signal output, and angle of incidence.
The TPS 334 is a thermopile sensor housed in a TO‑5 type package with a 0.7 × 0.7 mm² absorber area and a 30 kΩ thermistor temperature reference. It is designed for temperature measurement applications such as pyrometers and ear thermometers and can be equipped with a G9 (8‑14 mm) filter for precision remote sensing.
The datasheet details absolute maximum ratings, electrical parameters (responsivity 55 V/W, time constant 25 ms, noise voltage 35 nV/√Hz, NEP 0.64 nW/√Hz, detectivity 1.1 × 10⁸ cm√Hz/W), mechanical drawing, filter characteristics, and handling precautions including ESD protection and soldering limits. Quality is ensured by ISO‑9001 certification and lot acceptance testing.
| Ambient Temperature Range | -40 °C to 100 °C |
|---|---|
| Absorber Resistance (R_TP) | 50 kΩ – 100 kΩ (typical 75 kΩ) |
| Responsivity (S) | 55 V/W |
| Time Constant (τ) | 25 ms |
| Noise Voltage (V_RMS) | 35 nV/√Hz |
| Noise Equivalent Power (NEP) | 0.64 nW/√Hz |
| Detectivity (D*) | 1.1 × 10⁸ cm√Hz/W |
| Field of View | 7 ° – 10 ° |
The TPS 334 operates from –40 °C up to 100 °C.
Avoid electrostatic discharge, do not expose the sensor to aggressive detergents, clean the window with alcohol and a cotton swab, and limit hand or wave soldering to a maximum of 300 °C for less than 10 seconds.
A G9 (8 mm to 14 mm) long‑pass infrared filter can be equipped for precision remote temperature sensing.
The sensor has a responsivity of 55 V/W (typical, without filter or optics, at 500 K, 1 Hz).