20MM PHOTOSENSITIVE LDR SENSOR

The 20mm Photosensitive Light Dependent Resistor (LDR) sensor is a versatile component utilized in various light-sensing applications. Its resistance changes inversely with the intensity of light incident upon it, making it an essential element in circuits requiring automatic light detection and control. This sensor, characterized by its 20mm diameter, is widely favored in both consumer electronics and industrial automation for its reliability and efficiency in light detection.

Key Features of 20mm Photosensitive LDR Sensor:

• • The 20mm Photosensitive LDR sensor is distinguished by several key features:
  • High Sensitivity: Capable of detecting varying light intensities with precision.
  • Wide Resistance Range: Exhibits resistance from megaohms (in darkness) to kiloohms (in bright light).
  • Cost-Effective: Offers a budget-friendly solution for light sensing.
  • Durability: Ensures longevity and consistent performance over time.
  • Ease of Integration: Simplifies integration into existing circuits and systems.

Technical Specifications of 20mm Photosensitive LDR Sensor:

• • Maximum Voltage: Typically operates up to 100V.
  • Maximum Power Dissipation: Up to 100mW.
  • Spectral Peak: Approximately 540nm.
  • Dark Resistance: Typically in the range of megaohms.
  • Light Resistance: Typically in the range of kiloohms under bright light conditions.

Mechanical Specifications of 20mm Photosensitive LDR Sensor:

• • Material: Made from high-quality cadmium sulfide (CdS).
  • Diameter: 20mm.
  • Terminal Type: Leaded terminals for secure connections.
  • Operating Temperature: Ranges from -30°C to +75°C.

Dimensions:

• • Diameter: 20mm
  • Height: Varies based on the specific model but typically around 6mm.
  • Approximate Weight: 3 grams.

Mounting Options:

• • Surface Mount: Directly onto PCBs.
  • Panel Mount: Using appropriate holders or fixtures.
  • Through-Hole Mount: For sturdy and secure connections.

Schematic Diagram, Connection, Wiring and Pinout of 20mm Photosensitive LDR Sensor:

• • Pin Configuration: Two pins, with no polarity requirement.
  • Wiring: Connected in a voltage divider configuration with a resistor.
  • Connection: Typically to an analog input on microcontrollers for variable resistance reading.

Applications of 20mm Photosensitive LDR Sensor:

• • Automatic Lighting Controls: Street lights, garden lights.
  • Light Meters: Devices measuring light intensity.
  • Alarm Systems: Intruder detection based on light changes.
  • Consumer Electronics: Brightness adjustment in displays.
  • Industrial Automation: Light level monitoring and control.

Equivalent of 20mm Photosensitive LDR Sensor:

• • GL5549: Offers comparable performance and sensitivity.
  • GL5539: Known for its similar resistance range and durability.
  • NSL-19M51: Features matching mechanical specifications.

Help Topics for 20mm Photosensitive LDR Sensor:

• • 20mm Photosensitive LDR Sensor
  • Light Dependent Resistor 20mm
  • Photosensitive LDR Sensor Applications
  • 20mm LDR Technical Specifications
  • LDR Sensor Mounting Options

Package Includes:

• • 1 x 20mm GL20528 Photosensitive LDR Sensor Kit