The SW-520D is a common ball tilt sensor consisting of two electrically conductive elements (electrodes) and a conductive free mass (ball) encapsulated in the same housing.
The switch is in the "off" position when horizontal and in the "on" position when raised 10 to 90 degrees or when rocked.
When the switch is opened 10 degrees below horizontal, it is difficult to trigger conduction when shaken.
This switch is suitable for triggering small current circuits, not for power switches.
Widely used in electronic toys, medical electronics, car audio, automatic control systems, testing and measuring equipment, automotive vehicles and so on.

Specification:
Type: metal ball tilt vibration switch
Model: SW-520D
Voltage: 12V
Current: 5mA
On-time: 2ms
Closed circuit resistance: less than 10 ohm
Open circuit resistance: more than 10M ohm
Temperature resistance: 176 degrees Fahrenheit (80 degrees Celsius)

Material of each part:
1 with lead copper cap: brass tube nickel-plated, lead for red copper tin-plated
2 lead pin: brass, bottom layer nickel-plated, surface layer gold-plated
3 Roller ball: stainless steel bead silver or gold plated
4 heat shrinkable tube: PET heat shrinkable tube
5 sealer: PC

Size:
Length: 12mm/0.47inch
Diameter: 5mm/0.2inch
Pin length: 10mm/0.39inch

Package includes: 20pcs SW-520D metal ball tilt vibration switch