Pushbutton Switches

Pushbutton switches are electronic components that use mechanical pressure to open and close circuits. Their typical structure consists of a spring return mechanism, metal contacts, and a protective housing. They offer either a momentary or a latching operation.

 

1. What are the Key Parameters of Pushbutton Switches?

1) Electrical Characteristics: Rated voltage 12-250V DC/AC, current 0.1-10A.

 

2) Mechanical Lifespan: Standard 500,000 cycles, industrial grade up to 1 million cycles.

 

3) Protection Rating: IP65 dust and water resistant (sealed).

 

4) Material Options:

▪ Contacts: Gold-plated/Silver alloy (low contact resistance).

▪ Housing: Nylon (UL94 V-0 flame retardant) or 304 stainless steel.

 

2. What are the Applications of Pushbutton Switches?

Industrial Control: PLC control panels, machine tool emergency stop buttons.

 

Consumer Electronics: Home appliance power switches, smart device wake-up buttons.

 

Medical Equipment: Surgical instrument sterilizer control switches.

 

Rail Transit: Train control console human-machine interface.

 

3. What are the Advantages of Pushbutton Switches?

Modular Design: Supports LED backlight (voltage selectable from 3-24V) and a raised structure to prevent accidental touches.

 

Environmental Adaptability: Passed -40°C to 85°C temperature cycle testing.

 

Complete Certifications: Compliant with RoHS, REACH, and CE standards.

 

4. Selection Recommendations for Pushbutton Switches

Select the contact material based on the load type (gold-plated contacts are recommended for inductive loads). IP67 protection is preferred for humid environments. For high-frequency operation, pay attention to mechanical life parameters.