Pushbutton Switch with round cap
R18-25
This pushbutton switch comes with round cap φ12.0 mm, momentary and alternate types. Wide variety of button color and multiple function options. This switch is perfect for Conference microphone.
Features
- Circuit: SPST
- Function: Off-On, Off-(On), On-(Off)
Specification
- Rating: 3A 125VAC
- Contact Resistance: 30mΩ max.
- Insulation Resistance: DC 500V 100 MΩ min.
- Dielectric Strengte: AC 1000V 1 minute
- Electrical Life: 5,000 cycles min
- Mechanical Life: 10,000 cycles min
- Terminal Material: Copper alloy, silver or gold plated
| Model No. | TYPE |
|---|---|
| R18-25A | OFF-ON |
| R18-25B | OFF-(ON) |
| R18-25C | ON-(OFF) |
Product Drawings

Application
- Conference microphone
- Electronic equipment
- Youtube
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Details- Files Download
Need Reliable Push-to-Talk Switches for Your Conference Microphone Systems?
Our R18-25A series offers three functional configurations specifically designed for conference applications—momentary OFF-(ON) for push-to-talk operation, alternate OFF-ON for continuous activation, and ON-(OFF) for normally-on control. With 10,000 mechanical cycles and multiple button colors, these 12mm round cap switches deliver the reliability and professional appearance your conference systems demand. Request specifications and samples to test in your next microphone design.
Manufactured with precision copper alloy terminals featuring silver or gold plating, the R18-25A series guarantees superior conductivity and long-term reliability. The switch is designed to withstand rigorous operational demands with a mechanical life of 10,000 cycles minimum and electrical life of 5,000 cycles minimum, backed by RoHS certification for environmental compliance. The dielectric strength of AC 1000V for 1 minute ensures robust insulation protection, making it perfect for professional conference microphone systems and various electronic equipment requiring dependable push-to-talk or momentary control functionality. Contact us today to discuss how our round cap pushbutton switches can enhance your product designs with proven quality and competitive pricing.







