LDR

Key Features

• High Sensitivity: Rapidly detects subtle changes in ambient light levels.
• Broad Spectrum: Optimized for visible light (approx. 540nm), mimicking the human eye’s response.
• Durable Build: Epoxy-encapsulated for moisture resistance and long-term reliability.
• Easy Integration: Through-hole design fits perfectly into breadboards and PCBs.
• Passive Component: Requires no external power supply to operate as a sensor.

Technical Specifications

Model                                             GL55 Series (Standard 5mm)

Light Resistance                        10kΩ – 20kΩ

Dark Resistance                         1MΩ– 2MΩ (Min)

Max Voltage                                  150V DC

Max Power Dissipation            100mW

Peak Wavelength                        540nm

Response Time –                          20ms (Rise), 30ms (Fall)

Operating Temperature           -30°C to +70°C

Common Applications

• Automatic Lighting: Smart streetlights or night-light circuits.
• Security Systems: Detecting beam interruptions or “day/night” modes.
• Consumer Tech: Screen brightness adjustment for displays.
• Solar Energy: Activating solar chargers only after sunset.
• Photography: Exposure meters and flash triggers.