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Ball Switch Tilt Sensor-SW520D

SKU: U9PXJ68SOE
The SW520D Ball Switch Tilt Sensor is a compact mechanical tilt sensor designed to detect changes in orientation, inclination, and vibration. It contains two conductive contacts and an internal rolling metal ball that opens or closes the electrical circuit depending on the sensor's position. When the sensor is tilted beyond its operating angle, the ball moves and changes the switch...
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Specifications

Specifications:

Component Type: Ball Switch Tilt Sensor
Model: SW520D
Sensor Type: Rolling Ball Mechanical Tilt Switch
Detection Method: Mechanical Contact Switching
Contact Configuration: Normally Open (Orientation Dependent)
Operating Voltage: Up to 24V DC
Maximum Switching Current: 5mA Recommended (30mA Maximum Contact Rating)
Maximum Contact Voltage: 20V DC (Typical)
Sensitivity Angle: Greater Than ±15° (Typical)
Output Type: Mechanical Switch Contact
Contact Resistance: Less Than 10Ω
Insulation Resistance: Greater Than 10MΩ
Conductive Time: Approximately 2ms
Response Time: Instantaneous
Operating Temperature: -40°C to +80°C
Storage Temperature: -40°C to +85°C
Body Diameter: Approximately 5.2mm
Body Length: Approximately 11.5mm (Excluding Leads)
Lead Pitch: Approximately 2.54mm
Mounting Type: Through-Hole
Polarity: Non-Polarized

Additional Resources

SW520D.PDF

FAQ

1. What is the SW520D Ball Switch Tilt Sensor used for?

The SW520D is used to detect tilt, orientation, and movement in applications such as security systems, robotics, motion-triggered devices, and automation projects.

2. How does the SW520D work?

The sensor contains a rolling metal ball that moves with gravity. When the sensor is tilted beyond a certain angle, the ball makes or breaks contact between the internal terminals, changing the switch state.

3. Does the SW520D require a power supply?

No. The SW520D is a passive mechanical switch and does not require power to operate. When used with a microcontroller, it is typically connected with a pull-up or pull-down resistor or through a comparator module.

4. Can the SW520D be used with Arduino and ESP32 boards?

Yes. The SW520D can be connected directly to digital input pins using appropriate interface circuitry or used as part of an LM393-based tilt sensor module.

5. Can the SW520D detect vibration as well as tilt?

Yes. Because the internal metal ball responds to movement, the SW520D can also detect vibration and sudden motion, making it suitable for vibration alarms and motion-sensing applications.

View full product details

The SW520D Ball Switch Tilt Sensor is a compact mechanical tilt sensor designed to detect changes in orientation, inclination, and vibration. It contains two conductive contacts and an internal rolling metal ball that opens or closes the electrical circuit depending on the sensor's position. When the sensor is tilted beyond its operating angle, the ball moves and changes the switch state, making it ideal for tilt and motion detection applications.

The SW520D can be used either as a standalone tilt switch or integrated into sensor modules that include an LM393 comparator for digital output. It is widely used in security systems, anti-theft alarms, robotics, electronic toys, industrial equipment, orientation sensing, and motion-triggered devices.

With its simple two-terminal design, low power consumption, and long mechanical life, the SW520D offers a cost-effective solution for basic motion and tilt detection in embedded electronics and DIY projects.

Key Features

  • Mechanical rolling ball tilt switch
  • Detects tilt, inclination, and orientation changes
  • Simple digital switching operation
  • Fast response to movement
  • Low power consumption
  • Compact cylindrical design
  • Long mechanical operating life
  • Easy PCB mounting
  • Reliable switching performance
  • No external power required for switch operation
  • Suitable for vibration detection
  • Ideal for security and automation systems
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi (with suitable interface circuitry)
  • Perfect for educational and DIY electronics projects