7mm LDR Sensor Photoresistor Photo Cell 20528 GL20528
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
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7mm LDR Sensor Photoresistor Photo Cell 20528 GL20528

7mm LDR Sensor Photoresistor Photo Cell 20528 GL20528

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  • Product SKU: KG1054
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Specification

Description

7mm LDR Sensor Photoresistor Photo Cell 20528 GL20528

This LDR 7mm changes resistance with the change in the ambient light exposure on the surface of the sensor. LDR (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.

The LDR 7mm sensor works best in both Light and dark regions. Light-dependent resistors or photoresistors are 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. As the light on the sensor increases then the resistance across the two leads decreases.

Two Cadmium Sulphide (CDs) 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.

Technical details

  • Light Resistance: 50-100kΩ
  • Dark Resistance: 8MΩ
  • Response Time: 30ms (Increase), 30ms (Decrease)
  • Diameter: 7mm
  • No. of Leads: 2

Analog Applications:

  • Camera Exposure Control
  • Auto Slide Focus – Dual Cell
  • Photocopy Machines – Toner Density
  • Colorimetric Test Equipment
  • Densitometer
  • Electronic Scales – Dual Cell
  • Automatic Gain Control – Modulated Light Source
  • Automated Rear View Mirror

Digital Applications:

  • Automatic Headlight Dimmer
  • Nightlight Control
  • Oil Burner Flame Out
  • Streetlight Control
  • Absence / Presence (Beam Breaker)
  • Position Sensor

Applications

  • Automatic streetlight control
  • Camera exposure control
  • Nightlight automation
  • Flame detection
  • Position and presence detection
  • Light-sensitive alarms
  • Electronic toy applications
  • Solar-powered lighting systems
  • Industrial light control systems
  • Brightness adjustment in displays

Specifications

Model Max Pressure(VDC) Max Pwr(MW) Ambient temp(°C) Spectral Peak (Nm) Bright Resistor (Ω) Dark Resistor (MΩ) Response Time (ms)
5506 150 100 -30~+70 540 4-7 0.5 Rise:30 Fall:30
5516 150 100 -30~+70 540
5-10 0.5 Rise:30 Fall:30
5528 150 100 -30~+70 540 10-20 1 Rise:20 Fall:30
5537 150 100 -30~+70 540 20-30 2 Rise:20 Fall:30
5549 150 100 -30~+70 540 100-200 10 Rise:20 Fall:30

Package Includes

  • 1 x 7mm LDR Sensor Photoresistor Photo Cell 20528 GL20528

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