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Visible Light Sensor

Visible Light Sensor

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Visible Light Sensor

PROD Model:φ3

Maximum Applied Voltage: the maximum voltage that can be continuously applied to a component in the dark

Dark Resistance: resistance value at 10 seconds after 10Lux illumination is turned off

Maximum Power Consumption: maximum power consumption when the ambient temperature is 25 ° C

Bright Resistance: after 2 hours of exposure with 400-600Lux light, the
test value under 10Lux light of standard light source (color temperature

γ Value: logarithm of the ratio of the standard resistance value at 10Lux illuminance to 100Lux illuminance

γ= Lg(R10/R100) /Lg (100/10) =Lg(R10/R100)


A photoresistor is a resistance made of a
semiconductor material whose conductivity changes with the change of
illuminance. This feature is used to make photoresistors of different
shapes and light-receiving areas. Photoresistors are widely used in
toys, lamps, cameras and other industries.


Epoxy encapsulation

Good reliability

Small size

High sensitivity

Fast response

Good spectral characteristics




They have a very simple structure and they are low cost and rugged devices.They are widely used in many different items of electronic equipment including photographic light meters, fire or smoke alarms as well as burglar alarms, and they also find uses as lighting controls for street lamps.


1. What is the size for LDR?

φ3 series, φ4 series, φ5 series, φ7 series, φ10 series, φ12 series, φ20 series.

2. What is your production capitable?

5 million Pieces per Month
3. Which of the photoresistor's will be the best to allow an led to only come on in complete darkness

It depends on the circuit you intend to use.

SpecificationTypeMaximum VoltageMaximum power



Spectrumpeak valueLight resistance(10Lux)(KΩ)Dark resistance(MΩ)Response time(ms)
φ 3seriesGL351610050-30~+70℃5405- 100.63030
GL352610050-30~+70℃54010- 2013030
GL3537-110050-30~+70℃54020- 3023030
GL3537-210050-30~+70℃54030- 5033030
GL3547-110050-30~+70℃54050- 10053030
GL3547-210050-30~+70℃540100- 200103030
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