Description
The CEAC 20mm Light-Dependent Resistor (LDR) is a photosensitive electronic component designed to respond to changes in surrounding light. Also known as a photoresistor or photocell, it typically exhibits lower electrical resistance as light intensity increases and higher resistance in darker conditions.
This component can be used as part of a voltage-divider circuit to provide a changing voltage for a compatible controller or electronic circuit. Its round sensing surface and two radial leads make it suitable for through-hole circuit assembly and light-responsive electronic designs.
Key Specifications
|
Specification |
Details |
|---|---|
|
Brand |
CEAC, as provided |
|
Product Type |
Light-dependent resistor (LDR) |
|
Common Name |
Photoresistor/photocell |
|
Nominal Component Diameter |
20 mm, as supplied |
|
Sensing Principle |
Resistance varies with light intensity |
|
Number of Leads |
2 |
|
Output |
Variable resistance |
|
Spectral Response |
Model-dependent |
Applications
– Automatic streetlight and night-light circuits
– Ambient-light sensing
– Light-activated switching circuits
– Electronic projects and prototypes
– Light-level detection systems
– Camera exposure and brightness-control circuits
– Educational electronics and sensor experiments
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