Moisture Resistance 7mm Ceramic Plastic Encapsulated CdS Photoconductive Cell For Photoresistor Photo Sensor

Moisture Resistance 7mm Ceramic Plastic Encapsulated CdS Photoconductive Cell For Photoresistor Photo Sensor

Absolute Maximum Ratings

Photo-electric Characteristics (at 25 Degree)

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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

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