5mm IR Receiver LED Photodiode

This 5mm IR Receiver Photodiode detects infrared light, converting incoming IR intensity into a proportional electrical current, making it a fundamental sensing component for security systems, proximity sensors, and line-follower robots. Paired with an IR transmitter, it forms the basis of countless object-detection and counting circuits.

With a fast response time and high photo sensitivity, this photodiode reacts quickly and accurately to changes in IR light levels, while its small junction capacitance supports responsive performance even in higher-speed sensing applications. Common uses include automatic door sensors, encoder wheels, day-night light detection circuits, and automatic streetlight or vehicle light controllers, making it a versatile addition to any sensor-focused electronics project.

• IR light detection – converts IR intensity into proportional current
• Fast response time – reacts quickly to changing light levels
• High photo sensitivity – reliable detection performance
• Small junction capacitance – supports responsive, higher-speed sensing
• Pairs with IR LEDs – ideal for object detection and encoders
• Common applications – line followers, door sensors, light controllers

Add reliable IR sensing to your project with this Photodiode – 5mm IR Receiver LED.