Specifications

A photoresistor, often referred to as a light dependent resistor, is a resistor that reacts to increased exposure to light.

Key Specifications/Special Features:

• Diameter: 20mm
• GL20516
  • Ron at 10 lux: 5 to 12kΩ Roff: 0.5MΩ minimum γ (100 to 10 lux): 0.6
• GL20528:
  • Ron at 10 lux: 10 to 20kΩ Roff: 0.5MΩ minimum γ (100 to 10 lux): 0.65
• GL20537-1:
  • Ron at 10 lux: 20 to 40kΩ Roff: 1MΩ minimum γ (100 to 10 lux): 0.7
• GL20537-2:
  • Ron at 10 lux: 30 to 55kΩ Roff: 2MΩ minimum γ (100 to 10 lux): 0.7
• GL20549:
  • Ron at 10 lux: 50 to 140kΩ Roff: 5MΩ minimum γ (100 to 10 lux): 0.8
• Power dissipation (at 25°C): 500mW
• Maximum voltage (at 25°C): 500V DC or AC
• Spectral response peak (at 25°C): 560nm
• Ambient temperature: -30 to 70°C
• Peak wavelengths: 515, 550, 615 and 690nm
• Light resistance: measured at 10 lux with standard light A (2,856K color temperature) and 2 hours pre-illumination at 400 to 600 lux prior testing
• Dark resistance: measured 10 seconds after closed 10 lux
• Error: γ is ±0.1
• Low cost
• Responsive to very low light levels (moonlight) and very high light levels (sunlight)
• Wide dynamic range
• Low noise and distortion
• Applications:
  • Dusk to dawn light switching
  • Ambient light sensing
  • Night light control
  • Automatic rear view mirror
• Packing:
  • Type: ceramic
  • Mounting option: though holes (plug-in)