GL7539 Photoresistor Sensor LDR 50-100kΩ 7mm 2Pcs
The GL7539 Photoresistor Sensor LDR 50-100kΩ 7mm 2Pcs is a 7mm light-sensitive component that changes its resistance with varying ambient light intensity. With a resistance range of 50–100kΩ at 10 lux, it delivers stable and reliable performance for precise light detection. Its larger 7mm size offers enhanced sensitivity, making it ideal for automatic lighting controls, light sensors, alarms, display dimming, and DIY electronic projects. Supplied in a 2-piece pack, it is a versatile choice for both hobbyists and practical circuit applications.
Features
- 7mm round epoxy-coated head for higher light sensitivity.
- Resistance range: 50–100kΩ at 10 lux illumination.
- Reliable and stable performance under varying light conditions.
- Fast response time to changes in ambient light.
- Easy to integrate into light control and sensing circuits.
- Durable construction for long service life.
- Supplied in a convenient 2-piece pack.
Dimensions
Specifications
| Parameter | Condition | Value |
|---|---|---|
| Model | — | GL5506 |
| Datasheet | — | GL7539 |
| Diameter D | — | 7mm |
| Light Resistance RL | @ 10 Lux, 25℃ | 50–100 kΩ |
| Maximum Voltage Vmax | @ 25℃ | 150VDC |
| Power Dissipation Pd | @ 25℃ | 100mW |
| Dark Resistance RD | @ 0 Lux | 8MΩ |
| Gamma Value γ | 100–10 Lux | 0.8 |
| Response Time T | — | 30ms |
| Spectral Response Peak λ | @ 25℃ | 560nm |
| Ambient Temperature Range Top | — | -30℃ ~ +70℃ |
Applications
- Automatic lighting control (street lights, garden lights, night lamps).
- Light-sensitive alarms and security systems.
- Display brightness adjustment in electronic devices.
- Solar garden lights and energy-saving systems.
- Camera exposure control and light meters.
- DIY electronics and educational projects.
- Light-following robots and sensor-based automation systems.
Package Contents
- 2 X GL7539 Photoresistor Sensor LDR 50-100kΩ 7mm
elagamytarek (verified owner) –
heavy duty Photo Resistor Sensor