This manual provides specifications, testing methods, application circuits, and usage precautions for the D203S pyroelectric infrared radial sensor.
The D203S is a universal dual-element pyroelectric infrared sensor designed to detect infrared radiation by sensing temperature changes. It utilizes a dual-element complementary method to suppress interference caused by temperature fluctuations, thereby improving the stability of the sensor's operation. The device is widely applied in security devices, anti-theft alarms, induction doors, automatic lighting, and smart toys. This manual is written in Chinese.
| Package Type | TO-5 |
|---|---|
| Infrared Receiving Electrode | 2×1mm, 2 elements |
| Window Size | 4×3mm |
| Receiving Wavelength | 5-14µm |
| Output Signal Peak | ≥3500mV |
| Sensitivity | ≥3300V/W |
| Detection Area (D*) | ≥1.4 ×108 cmHz1/2/W |
| Noise Peak | <70mV |
| Output Balance | <10% |
| Source Voltage | 0.3-1.5V |
| Power Supply Voltage | 3-15V |
| Operating Temperature Range | -30-70ºC |
| Storage Temperature Range | -40-80ºC |
The sensor is applied in security devices, anti-theft alarms, induction doors, automatic lighting, and smart toys.
The soldering time should be as short as possible to prevent damage.
The window should not be touched directly with hands or hard objects.