As a classic masterpiece by Yueqing Tongda in the field of micro switches, the Mini Three-Pin Mouse Reset Switch features the core advantages of 'miniature structure, ultra-long life, and precise triggering,' and is specially designed for human-computer interaction devices such as mice and keyboards, as well as small electronic control applications.
Micro Switch Introduction
A microswitch is an electronic switch that can trigger the opening or closing of a circuit with minimal force and a short travel distance. In a mouse, it is usually installed underneath the left and right buttons. When you press a mouse button, the button stem is pushed down, causing the metal leaf inside the microswitch to actuate instantly, completing a crisp 'click' and sending an electrical signal to the computer.
The structure of a classic microswitch mainly includes:
Housing: Protects the internal structure.
Button/Actuator: Receives pressure from the mouse button.
Internal Metal Leaf: The core component; its shape, material, and plating determine the feel, lifespan, and sound.
Contacts: Usually made of silver or gold alloy, responsible for conducting electricity; their material affects signal stability and durability.
Micro Switch Parameter (Specification)
| ITEM | Main Technical Parameters |
| 1 | Electrical Rating :1A/3A 250VAC |
| 2 | Electrical lifetime : Min.10000 cycles |
| 3 | Contact Resistance :<50mΩ |
| 4 | Operating force:70±20gf |
| 5 | Free position:7.3±0.2mm |
| 6 | Operating position:7.0±0.2mm |
| 7 | Ambient temperature:T85° |
| 8 | Withstand Voltage :Between terminal and terminal 500V/5S/5mA; |
| Between terminals and case 1500/5S/5mA | |
| 9 | Insulation Resistance:>100MΩ Test Voltage 500VDC |
| 10 | Proof Tracking Index PTI :175V |
Micro Switch Details
