5mm LDR Sensor – Light Dependent Resistor (30kΩ to 50kΩ) for Light Sensing Applications The 5mm LDR Sensor is a light-dependent resistor (photoresistor) that changes its resistance based on the ambient light level. With a resistance range of 30kΩ to 50kΩ in low light, this compact and highly sensitive component is ideal for use in light sensing, brightness detection, and automatic lighting control systems. Its small size and fast response make it suitable for both DIY projects and embedded applications. Whether you’re designing a smart lighting system, a solar tracker, or an energy-saving automation setup, this LDR provides a reliable and cost-effective solution for detecting ambient light levels. Product Specifications Feature Specification Sensor Type Photoresistor / Light Dependent Resistor (LDR) Diameter 5mm Resistance (Dark) 30kΩ to 50kΩ (approx.) Resistance (Light) <10kΩ (approx., under bright light) Max Voltage 150V DC Max Power Dissipation 100mW Operating Temperature -30°C to 70°C Response Time Rise: <20ms, Fall: <30ms Applications Light sensors, street lights, solar lighting, security systems, brightness detection
