5MM 5537 LDR Photosensitive Resistor
![Front view of 5mm 5537 light dependent resistor sensor]()
![Side angle view of 5mm 5537 ldr resistor device]()
![5mm 5537 ldr resistor installed on breadboard for testing]()
![Front view of 5mm 5537 light dependent resistor sensor]()
![Side angle view of 5mm 5537 ldr resistor device]()
![5mm 5537 ldr resistor installed on breadboard for testing]()
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5MM 5537 LDR Photosensitive Resistor
Available:In Stock
- Product SKU: KG1050
₹ 5
₹ 9
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Specification
Description
5MM 5537 Light Dependent Resistor Sensor
The 5MM 5537 light dependent resistor sensor is a high-quality component designed for responsive brightness detection, working seamlessly in an ldr circuit and offering great compatibility with arduino and ldr learning projects. As ambient illumination increases, resistance decreases, enabling smooth automation for outdoor lights, solar devices, and brightness controls. Built with Cadmium Sulphide (CdS) cells, this compact light dependent resistor sensor mimics the spectral behavior of the human eye, providing accurate feedback for both hobby and professional use. Because of its affordability and performance, it is widely adopted in smoke detection, security triggers, and other real-time monitoring solutions.Technical Details of light dependent resistor sensor
- Product Details: Photoresistor
- Maximum Voltage: 150V DC
- Maximum Power Consumption: 100mW
- Environment Temperature: -30°C to +70°C
- Spectral Peak: 540nm
- Bright Resistance (10Lux): 16~50kΩ
- Dark Resistance: 2.0MΩ
- Sensitivity: 0.7 min
- Response Time: Rise 20ms, Down 30ms
- Model: 5537
Analog Applications using arduino and ldr
- Camera exposure control
- Auto slide focus – dual cell systems
- Photocopy machines – toner density sensing
- Colorimetric test instruments
- Densitometer systems
- Electronic scales – dual cell configuration
- Automatic gain control (modulated light source)
- Auto-dimming rearview mirror systems
Digital Applications in ldr circuit design
- Automatic headlight dimmer circuits
- Nightlight automation control
- Flame-out detection in oil burners
- Streetlight automation systems
- Presence and beam-breaker sensors
- Position sensing modules
Features of arduino and ldr projects
- Precisely senses and responds to light intensity
- Easy to connect on breadboards or perfboards
- Compatible with analog/digital ICs and microcontrollers
- Compact, low-cost, and readily available component
- Fast response time and stable performance
- Eco-friendly design and long operational life
- Highly reliable for both DIY and professional use
Applications demonstrating ldr circuit benefits
- Automatic streetlight control systems
- Camera exposure and brightness adjustment
- Nightlight and home automation circuits
- Flame detection and safety sensors
- Position and presence monitoring modules
- Light-activated alarms and detectors
- Interactive educational electronics
- Solar-powered and IoT lighting solutions
- Industrial light control automation
- Display and screen brightness control
Specifications for light dependent resistor sensor
| 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 | 0.5 | Rise:30 / Fall:30 |
| 5516 | 150 | 100 | -30~+70 | 540 | 5–10 | 0.5 | Rise:30 / Fall:30 |
| 5528 | 150 | 100 | -30~+70 | 540 | 10–20 | 1 | Rise:20 / Fall:30 |
| 5537 | 150 | 100 | -30~+70 | 540 | 20–30 | 2 | Rise:20 / Fall:30 |
| 5549 | 150 | 100 | -30~+70 | 540 | 100–200 | 10 | Rise:20 / Fall:30 |
Drawing (mm) related to arduino and ldr builds
Package Includes
- 1 × 5MM 5537 LDR Photosensitive Resistor
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