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Details of Photosensitive Resistance Detection Sensor


Environmental Sensors 1

Photosensitive Resistance Detection Sensor

2,500 Rwf
The sensor is typically made of semiconductor materials like cadmium sulfide (CdS).

The resistance decreases when exposed to higher light levels (photoconductivity) and increases in darkness.

It is inexpensive and easy to use, making it popular for DIY electronics and industrial applications.

Specifications:

  • Material: Cadmium sulfide (or other photosensitive materials).


  • Light Sensitivity: Works in the visible light range (400-700 nm).


  • Resistance Range:

    In bright light: 1-10 kΩ.

    In darkness: ~1 MΩ or higher.


  • Response Time:

    Rise time: ~10-100 ms.

    Fall time: ~20-200 ms.


  • Operating Voltage: Typically 3.3V or 5V (with a voltage divider circuit).


  • Power Dissipation: Generally low (a few milliwatts).


  • Temperature Range: -30°C to +70°C (varies by model).
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