LDR – 12mm

LDR(Light Dependent Resistor) also known as photoresistor is a resistor whose resistance varies with the amount of light falling on it. This is a large size LDR with a size of 12mm.

SKU: RW-00871

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42.00

Inclusive of GST

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100 in stock

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Description

LDR(Light Dependent Resistor) also known as photoresistor is a resistor whose resistance varies with the amount of light falling on it. This is a large size LDR with a size of 12mm.

To use, connect one side of the photo cell (either one, its symmetric) to power (for example 5V) and the other side to your microcontroller’s analog input pin. Then connect a 10K pull-down resistor from that analog pin to ground. The voltage on the pin will be 2.5V or higher when its light out and near ground when its dark.

This sensor can be used for making a light sensor, color sensor, object sensor, line sensor, etc.

Analog Applications:-

 

  • Camera exposure control
  • Auto slide focus – dual cell
  • Photocopy machines – the density of the toner
  • Colorimetric test Equipment
  • Densitometer
  • Electronics scales – dual cell
  • Automatic gain control – modulated light source
  • Automated rearview mirror

 

Digital Applications:-

 

  • Automatic headlight dimmer
  • Nightlight control
  • Oil burner flame out
  • Streetlight control
  • Absence/presence (beam breaker)
  • Position sensor

 

Other applications:-

 

  • Annunciator
  • Camera automatic photometry
  • Electronic toy
  • Industrial control
  • Light control
  • Light control lamp
  • Photoelectric control
  • Switch

 

Specifications and Features:-

 

  • Diameter : 12mm
  • Number of Pins : 2
  • Dark resistance : max. 20MΩ
  • Spectral Peak : 560nm
  • Light Resistance (10 lux) : 10 – 20 kΩ
  • Maximum Voltage : 250VDC
  • Maximum Power : 0.2W
  • Operating Temperature : -30˚C to 70˚C
  • Response Time(μS) : 20(Rise), 30 (Down)
  • Resistance Illumination : 3

 

Package Includes:-

1 x LDR – 12mm

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

Additional information

Operating voltage

2.5 3.0V

Pixel Resolution

0.3MP

Photosensitive array

640 x 480

Optical Size

1.6 inch

Angel of view

67 degrees

Maximum Frame Rate

30fps VGA

Sensitivity

1.3V/(Lux-sec)

Dormancy

Less than 20A

Power consumption

60mW/15fpsVGA YUV

Temperature operation Range

-30 C ~ 70 C

Pixel area

3.6 x 3.6 m

Signal to noise ratio (SNR)

46 dB

Dynamic range

52 dB

Specification

Additional information

Diameter

12mm

Number of Pins

2

Dark resistance

max. 20MΩ

Spectral Peak

560nm

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