Menu
Your Cart

LDR 20 mm Light Depending Resistor

Description

The resistance of 20mm GL20528 Light Sensitive Photoresistor LDR changes with the change in the ambient light exposed on the surface of the sensor. As the light on the sensor increases then the resistance across the two leads decreases. Light Dependent Resistor is a type of photocell which finds excellent use in light sensing device application, whether it is automatic outdoor light ON/OFF switch or indoor automatic light switch; moreover, the 12mm LDR or photoresistor sensor works best in both light and dark regions. The photo-resistor is a staple of electronics. If you need a way to sense the level of ambient light, then there is no easier way to do it without an LDR/photo-resistor. CityTech BD 

Two Cadmium Sulphide PhotoConductive Cells with spectral responses similar to that of the human eye. Cell resistance falls with increasing light intensity. Applications of this product include smoke detection, automatic lighting control, batch counting, and burglar alarm systems. Furthermore, some of the applications are given below.

Product Images are shown for illustrative purposes only and may differ from the actual product.

Note: Product images/ Components brand may vary from actual product as our stock rotates.

 Analog Applications:

  1. Camera exposure control
  2. Auto slide focus – dual cell
  3. Photocopy machines – the density of the toner
  4. Colorimetric test equipment
  5. Densitometer
  6. Electronics scales – dual cell
  7. Automatic gain control – modulated light source
  8. Automated rear view mirror CityTech BD 

Digital Applications:

  1. Automatic headlight dimmer
  2. Nightlight control
  3. Oil burner flame out
  4. Streetlight control
  5. Absence/presence (beam breaker)
  6. Position sensor

Other applications:

  1. Annunciator
  2. Camera automatic photometry
  3. Electronic toy
  4. Industrial control
  5. Light control
  6. Light control lamp
  7. Photoelectric control
  8. Switch

Features:

  1. Coated with epoxy
  2. Good reliability
  3. High sensitivity
  4. Small volume
  5. Fast response
  6. Good spectrum characteristic
  7. Model: GL20528 ( GM20528 )
  8. Size: 20mm
  9. Max. voltage: 500 VDC
  10. Max. power: 500 mW
  11. Spectrum Peak Value (nm): 560
  12. Light resistance ( KΩ) : 10–20 kΩ
  13. Dark resistance ( KΩ): 2 kΩ.
  14. Υ value : 0.6.
  15. Increase response time: 30 mS.
  16. Decrease response time: 30 mS.
General Specification
Diameter (mm)20
Spectral Peak560 nm
No. of Pins2
Dark resistancemax. 2 kΩ
Light Resistance10 – 20 kΩ
Maximum Voltage(V)500 VDC
Maximum Power (W)0.5
Response Time ( μS)30
Shipment Weight0.006 kg
Shipment Dimensions4 × 3 × 2 cm

Please allow 5% measuring deviation due to manual measurement. CityTech BD 

Package Includes :

1 x LDR 20 mm Light Depending Resistor

Review

Write a review

Note: HTML is not translated!
Bad Good