5MM 5516 LDR Photosensitive Resistor
- Product SKU: KG1048
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Specification
Description
5MM 5516 Light Dependent Resistor
The 5MM 5516 light dependent resistor is a high-sensitivity component that adjusts resistance according to ambient lighting, making it suitable for smart automation projects. Because it functions reliably as an ldr photoresistor and integrates well with LDR arduino circuits, it supports light-based switching with ease.
As light exposure increases, resistance decreases, enabling precise brightness detection. Therefore, the 5MM light dependent resistor performs well in both bright and dark environments. Since it operates simply and efficiently, it remains a popular choice in electronics for measuring illumination.
Built with Cadmium Sulphide (CdS) cells, this LDR photoresistor offers a spectral response similar to the human eye. As brightness rises, its resistance drops proportionally. Additionally, it ensures fast reaction times in systems such as smoke detectors, lighting controllers, batch counters, and burglar alarms, and works seamlessly with LDR arduino development boards.
Technical Details of light dependent resistor
- Mount: Through Hole
- Number of Pins: 2
- Light Resistance (10 Lux): 5 – 10 kΩ
- Maximum Voltage: 150 V
- Maximum Power: 90 mW
- Spectrum Peak Value: 540 nm
- Dark Resistance: 0.5 MΩ
- Response Time Increase: 30 ms
- Response Time Decrease: 30 ms
- Diameter: 5 mm
- Model: 5516
Analog Applications with ldr photoresistor
- Camera exposure control
- Auto slide focus – dual cell configuration
- Photocopy machines – toner density measurement
- Colorimetric test equipment
- Densitometer systems
- Electronic scales – dual cell sensor
- Automatic gain control – modulated light source
- Automated rear-view mirror systems
Digital Applications using LDR arduino
- Automatic headlight dimmer
- Nightlight control circuits
- Oil burner flame-out detection
- Streetlight control systems
- Absence / presence (beam-breaker) sensors
- Position sensing in automation devices
Features of light dependent resistor and ldr photoresistor
- Accurately senses changes in light intensity
- Easy to use on breadboards or perf boards
- Compatible with microcontrollers and analog/digital ICs
- Compact, low-cost, and widely available
- Fast response time and stable performance
- Eco-friendly design with long-term reliability
- Consistent results across a wide temperature range
Applications with LDR arduino
- Automatic streetlight and smart lighting control
- Camera exposure and brightness adjustment
- Nightlight automation and indoor light sensing
- Flame detection and fire-safety systems
- Position and presence detection modules
- Light-based alarm and security systems
- Interactive electronics and educational kits
- Solar-powered lighting and IoT systems
- Industrial light intensity monitoring
- Automatic brightness control in displays
Specifications for ldr photoresistor
| Model | Max Pressure (VDC) | Max Power (mW) | Ambient Temp (°C) | Spectral Peak (nm) | Bright Resistance (Ω) | Dark Resistance (MΩ) | Response Time (ms) |
|---|---|---|---|---|---|---|---|
| 5506 | 150 | 100 | -30 ~ +70 | 540 | 4 – 7 kΩ | 0.5 MΩ | Rise: 30 Fall: 30 |
| 5516 | 150 | 100 | -30 ~ +70 | 540 | 5 – 10 kΩ | 0.5 MΩ | Rise: 30 Fall: 30 |
| 5528 | 150 | 100 | -30 ~ +70 | 540 | 10 – 20 kΩ | 1 MΩ | Rise: 20 Fall: 30 |
| 5537 | 150 | 100 | -30 ~ +70 | 540 | 20 – 30 kΩ | 2 MΩ | Rise: 20 Fall: 30 |
| 5549 | 150 | 100 | -30 ~ +70 | 540 | 100 – 200 kΩ | 10 MΩ | Rise: 20 Fall: 30 |
Drawing (mm) for light dependent resistor
Package Includes
- 1 × 5MM 5516 LDR Photosensitive Resistor
