LDR 10mm PHOTORESISTOR
The 10mm LDR (Light Dependent Resistor) Photoresistor is a light-sensitive component that changes its resistance according to light intensity. In bright light, its resistance decreases, while in darkness it increases significantly. Made typically from cadmium sulfide (CdS), it offers high sensitivity, low cost, and easy integration into electronic circuits. With a 10mm sensing surface, it provides reliable light detection for automation and sensing applications. It is widely used in automatic lighting systems, security alarms, and robotics projects.
حساس LDR ضوئي 10 مم هو مقاومة تتغير قيمتها حسب شدة الضوء. تقل المقاومة عند الإضاءة وتزداد في الظلام. مصنوع عادة من كبريتيد الكادميوم (CdS) ويتميز بحساسية عالية وسهولة الاستخدام وتكلفة منخفضة. بفضل سطحه الكبير 10 مم يوفر استشعاراً دقيقاً للضوء. يستخدم في أنظمة الإضاءة التلقائية، أنظمة الحماية، والمشاريع الروبوتية.
The 10mm LDR photoresistor is a passive light sensor that operates by varying its electrical resistance based on ambient light levels. It is commonly used in circuits that require automatic light detection and response. When exposed to light, its resistance drops significantly, and in darkness, it rises to very high values.
This sensor is coated with epoxy resin for durability and offers fast response time, high sensitivity, and stable performance. It is ideal for educational, hobby, and industrial applications where light monitoring is required.
Specifications
- Sensor Type: Light Dependent Resistor (LDR)
- Diameter: 10mm
- Max Voltage: 500V
- Max Power: 500mW
- Operating Temperature: -30°C to +70°C
- Light Resistance: 5KΩ – 100KΩ
- Dark Resistance: 1MΩ – 8MΩ
- Material: Cadmium Sulfide (CdS)
- Coating: Epoxy resin
Applications
- Automatic street lighting systems
- Day/night detection circuits
- Security and alarm systems
- Robotics (light-following robots)
- Automatic headlight dimming systems
- Smart home lighting control
- Obstacle detection using light interruption