Mini Photocell – LDR (Light Dependent Resistor)

(2 customer reviews)

£0.90 inc VAT

Availability: 1000 in stock

Brand: SparkFun
Part Number: 53901
Barcode: 5055421000455
SKU: PPSEN-09088 Categories: , , Tags: ,
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Mini Photocell – LDR (Light Dependent Resistor)

A photocell changes (also called an LDR, photo detector, photo resistor, CdS or photo conductive cell) resistance depending on the amount of light it is exposed to. These little sensors make great ambient light triggers (ie when the light in the room turns on, do something).

In pitch-black conditions, the photocell’s resistance will be in the megaohm’s (1.0MΩ+) range. Shining a light on the sensor can drop the resistance to near-zero, but usually, the resistance of the photocell falls between 8-20kΩ when in normal lighting conditions.

Mini Photocell Specifications:

  • Light Resistance: ~1k Ohm
  • Dark Resistance: ~10k Ohm
  • Max voltage: 150V
  • Max power: 100mW
  • Operating Temperature: -30 ~ +70 °C

Mini Photocell Dimensions:

  • Body Length: 5.1mm (0.2″)
  • Body Width: 4.3mm (0.169″)
  • Body Depth: 2.4mm (0.095″)
  • Distance between pins (center to center): 3.4mm (0.134″)
  • Lead length: 31mm (1.22″)

Photocell mini LDR Proto-PIC Dimensions

Mini Photocell Documents:

2 reviews for Mini Photocell – LDR (Light Dependent Resistor)

  1. Chris

    I’m using this photocell with an Arduino/LCD display that is in my bedroom. The display is far too bright at night so, with this photocell, my Arduino now switches off the display when the lights go out.

  2. Luke Graha

    Simple to use, works with wide range of lighting conditions.

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