The 20mm LDR (Light-Dependent Resistor) is a light-sensitive electronic component that changes its resistance in response to ambient light levels. It is commonly used in light-sensing applications such as automatic lighting, solar garden lights, and DIY electronics projects.
- Type: Photoresistor / Light Dependent Resistor
- Diameter: 20mm sensing area
- Resistance Range:
- Bright Light (10 Lux): ~1kΩ – 10kΩ
- Dark (0 Lux): ~1MΩ or more
- Response Time: Rise < 30 ms, Decay < 30 ms
- Material: High-quality CdS (Cadmium Sulfide) sensor
- Operating Voltage: Up to 150V
- Applications: Light sensors, alarms, night lights, solar lamps, Arduino projects
- Mounting: Through-hole leads for easy soldering
