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GL125 Series
CdS Photoresistor Manual
GL125 Series Photoresistor
Photoresistor is a resistor which made of semi-conductor material,and the conductance changes
with luminance variation .The photoresistor can be manufactured with different figures and illuminated
area based on this characteristic.Photoresistor is widely used in many industries, such as
toys,lamps,camera,etc.
Schematic Drawing
Performances and Features
Coated with epoxy
Small volume
Fast response
Good reliability
High sensitivity
Good spectrum characteristic
Typical Applications
Camera automatic photometry
Indoor ray control
Industrial control
Light control lamp
Photoelectric control
Annunciator
Light control switch
Electronic toy
Types and Specifications
Specification
Type
Max.
Voltage
Max.
power
Environmental
temp.
Spectrum
peak value
GL12516
250
200
-30~+70
560
GL12528
250
200
-30~+70
Φ12
series
GL12537-1
250
200
-30~+70
GL12537-2
250
200
-30~+70
560
560
560
GL12539
250
200
-30~+70
560
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GL125 Series
CdS Photoresistor Manual
Specification
Light
resistance
(10Lux)
(KΩ)
Dark
resistance
(MΩ)
Response time
(ms)
Increase Decrease
5-10
1 0.6 30
30
Φ12
series
10-20
20-30
30-50
2 0.6 30
3 0.7 30
5 0.7 30
30
30
30
50-100
8 0.8 30
30
Illuminance
resistance
Fig. No.
3
3
4
4
6
Test Conditions
Max. external voltage: Maximum voltage to be continuously given to component in the dark.
Dark resistance: Refer to the resistance ten seconds after the 10Lux light is shut up.
Max. power consumption: Maximum power at the environmental temperature 25℃.
Light resistance: Irradiated by 400-600Lux light for two hours, then test with 10Lux under
standard light source A(as colour temperature 2856K).
γvalue: Logarithm of the ratio of the standard resistance value under 10Lux and that under
100Lux.
Lg(R10/R100)
γ= Lg(100/10) =Lg(R10/R100)
R10,R100 are the resistances under 10Lux and 100Lux respectively.
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