LED
LCD
Product Overview
The 10mm LDR offers the same fundamental functionality as its smaller counterparts but with a larger sensing head. This increased surface area allows for more stable readings in variable lighting conditions. Its resistance drops as light intensity increases, making it a reliable “analog eye” for your microcontroller. Whether you are building a solar tracker or an industrial light controller, the 10mm version provides a robust physical and electrical interface.
How to Use & Connections
Increased Coverage: The larger 10mm head is easier to align with light sources in outdoor or large-scale projects.
Standard Wiring: Typically used in a voltage divider circuit with a 10KΩ resistor to provide an analog voltage signal to an Arduino or ESP32.
Durability: The larger epoxy coating provides better protection and heat dissipation during operation.
Technical Specifications
| Feature | Specification |
| Diameter | 10mm |
| Light Resistance (10 Lux) | 8KΩ – 20KΩ (Typical) |
| Dark Resistance (0 Lux) | 1MΩ – 5MΩ (Highly Sensitive) |
| Max Voltage | 150V DC |
| Max Power Consumption | 200mW |
| Peak Wavelength | 540nm – 560nm |
| Response Time | ~20ms – 30ms |
Key Features
Enhanced Sensitivity: The larger surface area allows for better detection of subtle light changes in dim environments.
Wide Dynamic Range: High dark resistance ensures very low power leakage in the absence of light.
Breadboard Friendly: Fits easily into any standard 0.1″ pitch breadboard (like the MB-102 or 400-point).
Versatile Application: Excellent for high-power switching circuits when paired with a transistor or relay.
