HC-SR501 Datasheet – PIR Motion Detector – Sensor Module

A Passive Infrared (PIR) motion detector, commonly known as a PIR sensor, is an electronic sensor that is used to detect motion in its surrounding environment. PIR sensors are widely used in various applications, including security systems, lighting control, and automation, where they play a key role in detecting the presence of people or animals based on their body heat and movement.

Part Number: HC-SR501

Function: PIR Motion Detector, Sensor Module( Passive Infrared Sensor )

Package: Module Type

HC-SR501 Image


HC-SR501 is based on infrared technology, automatic control module, using Germany imported LHI778 probe design, high sensitivity, high reliability, ultra-low-voltage operating mode, widely used in various auto-sensing electrical equipment, especially for battery-powered automatic controlled products.


1. Use BISS0001 signal processing IC, sanyo genius regulator

2. Voltage: 5V – 20V

3. Power Consumption: 65mA

4. TTL output: 3.3V, 0V

5. Delay time: adjustable (0.3 sec – 10 minutes)

6. Lock time: 0.2 sec

7. Trigger methods: L – disable repeat trigger, H enable repeat trigger

8. Sensing range: less than 120 degree, within 7 meters

9. Temperature: – 15 ~ +70

10. Dimension: 32*24 mm, distance between screw 28mm, M2, Lens dimension in diameter: 23mm

Circuit and pinout

HC-SR501 Datasheet


HC-SR501 Datasheet


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