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Photo Resistor Sensor – LDR 10mm

14.00 EGP

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Availability: In Stock
SKU:300000007266

These small 10mm LDR (Light Dependent Resistor) are also called a photoresistor.  An LDR is a resistor whose resistance changes with the amount of light striking it.

Key Features of Light Depentent Resistor:

As the strength of the light falling on the LDR increases, the resistance of the LDR gets lower.

It is typical to put the LDR in series with a resistor to create a voltage divider and feed that output to an analog input on an MCU.  The output will be a lower voltage when no light is striking the sensor and the voltage will increase as the light intensity increases.

These can be used in a variety of applications such as monitoring a pilot light, night light control or anywhere that you want to detect a basic threshold of light and take some action.

LDR Resistance Value Light Intensity
20K Sensor blocked
17K Very dim room
3K Moderate room light
950 Overcast daylight
400 Next to fluorescent bulb

Size: 10mmx 2 (D x No. of Pins)

Technical Specifications
Operating Ratings Max Voltage 250V
Max Power Dissipation 200mW
Peak Detection Wavelength 540nm (similar to human eye)
 Dimensions Sensor Diameter 10mm

 

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