Push Button Switch 5.8*5.8mm

Self-reset Push Button Switches' Display

Product Structure of Pushbutton Switches

This push switch features a compact 5.8×5.8mm square package specifically designed for high-density PCBs. Its core structure is as follows:

Operating Principle of Momentary Pushbutton Switch

This push switch is a non-latching momentary-action type, maintaining conduction only when pressed and immediately resetting upon release:

1. Initial State (Unpressed)

The reset spring is extended, lifting the moving contact bracket. All circuits are open: COM1 and NO1, COM2 and NO2 are separated, forming open circuits on both paths.

2. Pressed State (Instantaneous Conduction)

Pressing the button overcomes spring force, pushing the plunger to simultaneously lower the moving contacts. Both circuits instantly close:

First Circuit: COM1 connects with NO1-1 and NO1-2;

Second circuit: COM2 connects with NO2-1 and NO2-2.

This state persists only while the button is held down; release immediately breaks the circuit.

3. Reset State (Release Disconnect)

Upon releasing the button, the reset spring releases its force, driving the push rod and contacts to rapidly snap back. Both circuits simultaneously open, immediately restoring the initial open circuit state.

Application Scenarios for 5.8 Pushbutton Switches

The compact 5.8×5.8mm size and DPDT dual-pole characteristics make it widely applicable in scenarios requiring dual-channel synchronous instantaneous control:

Medical Equipment: Temporary start/stop, mode switching, or function trigger buttons for diagnostic instruments and patient monitors.

Industrial control: Momentary operation, mode selection, or reset buttons for compact PLCs, test instruments, and handheld terminals.

Communications and electronics: Temporary signal switching and test mode triggering for laser communication modules and semiconductor heat dissipation equipment.

Consumer electronics: Function switching, mode selection, or temporary control for smart appliances and portable devices.

Automotive electronics: Instantaneous trigger switches for in-vehicle entertainment systems and auxiliary control modules.