SW-520D Tilt Switch Sensor

Overview

SW-520D Tilt Switch Sensor

The SW-520D Tilt Switch Sensor is a compact mechanical tilt and vibration sensor used for detecting movement, inclination, shaking, and orientation changes in electronic circuits. It contains an internal conductive ball that changes contact state when the sensor is tilted or vibrated, producing a simple ON/OFF signal.

This sensor is ideal for Arduino, ESP32, STM32, Raspberry Pi, robotics, alarm systems, and DIY electronics projects where basic tilt or vibration detection is required.

With its small cylindrical design and through-hole leads, the SW-520D can be easily soldered directly onto a PCB or connected to a prototyping board.

Key Features

• Detects tilt, vibration, and movement

• Simple ON/OFF switch output

• Compact cylindrical package

• Low power consumption

• Fast response to movement

• Easy PCB mounting with through-hole leads

• No additional circuitry required for basic detection

• Suitable for hobby and industrial applications

Technical Specifications

• Model: SW-520D

• Sensor Type: Ball Tilt / Vibration Switch

• Output Type: Mechanical switch contact

• Operating Voltage: Suitable for low-voltage electronic circuits

• Mounting Type: Through-hole

• Lead Type: 2-pin radial leads

• Package: Cylindrical black housing

How It Works

Inside the sensor is a conductive metal ball. When the sensor is tilted or shaken, the ball moves and either makes or breaks electrical contact between the internal terminals, allowing a microcontroller or circuit to detect movement.

Applications

• Tilt alarms

• Anti-theft devices

• Vibration detection

• Motion-triggered electronics

• Robotics projects

• Smart home sensors

• Equipment movement monitoring

• Educational electronics projects

Package Includes

• 1x SW-520D Tilt Switch Sensor

Advantages

• Very low cost

• Simple to use

• Compact and lightweight

• Reliable mechanical operation

• Easy to solder onto PCBs

• Suitable for beginners and professionals