LDR 12 mm
SKU: R2-B-5-3
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₹34.00 (Excluded Tax)
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Description

The 12mm LDR (Light Dependent Resistor) is a simple and effective light sensor used to detect changes in light intensity. It is ideal for STEM learning, enabling hands-on experimentation with concepts such as sensing, automation, and basic electronics.

An LDR is a resistor whose resistance varies based on the amount of light falling on it:

  • More light → Lower resistance
  • Less light → Higher resistance

This behavior makes it suitable for light-sensitive applications.

Key Features

  • 12mm sensing surface for improved light detection
  • Easy integration with breadboards and microcontrollers
  • Analog output based on light intensity
  • Responsive to ambient light changes
  • Suitable for educational and prototype applications

Technical Specifications

  • Type: Photoresistor (LDR)
  • Diameter: 12mm
  • Light Resistance: ~1kΩ to 10kΩ (in bright light)
  • Dark Resistance: Up to 1MΩ
  • Response Time: Moderate
  • Peak Sensitivity: Around 540 nm (visible light spectrum)

Applications

  • Automatic street lighting systems
  • Light/dark detection circuits
  • Smart lighting solutions
  • Security and alarm systems
  • Solar-powered devices
  • Arduino and ESP32-based sensing projects

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