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Moisture Resistance 7mm Ceramic Plastic Encapsulated CdS Photoconductive Cell For Photoresistor Photo Sensor
Absolute Maximum Ratings
| Allowable Power Dissipation (P D) | 100mW (derate above 25C:1.0mW/℃)) |
| Maximum Applied Voltage(Vmax) | 150VDC |
| Ambient Temperature Range (TA) | -30~+70℃ |
Photo-electric Characteristics (at 25 Degree)
| Name | Model | Max. Voltage VDC | Max. Power mw | Environment Temperature (℃) | Spectrum Peak nm | Light Resistance (10Lux) KΩ | Dark Resistance ≥MΩ | γ100 10 | Response Time (ms) | Illuminance Resistance Characteristic | |
| Increase | Decrease | ||||||||||
| φ7 Series | GM7516 | 150 | 100 | -30~+70 | 540 | 5-10 | 0.2 | 0.6 | 30 | 30 | 1 |
| GM7528 | 150 | 100 | -30~+70 | 540 | 10-20 | 1 | 0.6 | 30 | 30 | 2 | |
| GM7537-1 | 150 | 150 | -30~+70 | 560 | 20-30 | 2 | 0.7 | 30 | 30 | 3 | |
| GM7537-2 | 150 | 150 | -30~+70 | 560 | 30-50 | 4 | 0.8 | 30 | 30 | 3 | |
| GM7539 | 150 | 150 | -30~+70 | 560 | 50-100 | 8 | 0.8 | 30 | 30 | 4 | |
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Dimension in mm
Overview
CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes
down. When its light, the resistance is about 5-10KΩ, when dark it goes up to 200KΩ.
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.CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes
down. When its light, the resistance is about 5-10KΩ, when dark it goes up to 200KΩ.
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.Below is product photo:
Key Features
Fast response
Perfect sensitivity for spectrum characteristics
Good reliability
Fast delivery, competitive price
Resistor which made of semi-conductor material and theconductance changes
With luminance variation
The photoresistor can be manufactured with different figuresand illuminated
area based on this characteristic
Performances and features:
Coated with epoxy
Good reliability
Small volume
High sensitivity
Fast response
Good spectrum characteristic
Application
Camera automatic photometry
Photoelectric control
Indoor ray control
Annunciator
Industrial control
Light control switch
Lamp
Electronic toy