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LDR - 20mm - Photocell/Photoresistor
- Product Code: LR-20m
- Availability: In Stock
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₹49.00 (+ GST)
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- 10 or more quantity/sets : ₹47.00
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LDR - 20mm - Photocell/Photoresistor
The LDR 20mm Photocell functions as a light-dependent resistor. It modifies its electrical resistance based on ambient light intensity. This component detects light levels for various electronic projects. It exhibits high sensitivity and a fast response time. The 20mm diameter facilitates integration into diverse circuits. Applications include automatic lighting, security systems, and educational kits. A robust epoxy coating provides component reliability and durability. This LDR supports light detection in engineering and maker projects.
Specifications:
- Type: Photocell / Photoresistor (LDR)
- Diameter: 20mm
- Material: Cadmium Sulfide (CdS)
- Operating Principle: Light Dependent Resistor
- Spectral Peak: ~540nm
- Dark Resistance: >1MΩ
- Light Resistance (10 lux): 5-20KΩ (typical)
- Max Voltage: 150V DC
- Max Power Dissipation: 100mW
- Operating Temperature: -30°C to +70°C
- Coating: Epoxy
Key features and benefits:
- High sensitivity for detecting changes in light intensity.
- Fast response time to light variations.
- Spectral characteristics optimized for visible light detection.
- Durable epoxy coating provides protection and extended lifespan.
- Compact 20mm diameter for space-constrained applications.
- Resistance varies inversely with light intensity.
Applications:
- Automatic street lights and night lights.
- Light-activated alarms and security systems.
- Brightness control for displays and backlights.
- Robotics and automation projects.
- Educational electronics kits.
- Darkness-activated circuits and sensors.
Frequently Asked Questions:
Q: What is the maximum operating voltage for this LDR?
A: The maximum operating voltage for this LDR is 150V DC.
Q: What is the typical resistance range of this LDR?
A: Dark resistance is >1MΩ, and light resistance (10 lux) is typically 5-20KΩ.
Q: What material is used in the construction of this photocell?
A: The LDR 20mm Photocell is constructed from Cadmium Sulfide (CdS).
Q: What is the spectral peak of this LDR?
A: The spectral peak of this LDR is approximately 540nm.
Q: What is the operating temperature range for this component?
A: The operating temperature range is -30°C to +70°C.
Q: What is the physical diameter of this LDR?
A: The diameter of this LDR is 20mm.
Package Includes:
1 x LDR - 20mm - Photocell/Photoresistor.*Image shown is a representation only.
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