Tact Push Button Switch 4-Pin 12x12x4.3mm Round Head (Pack of 10)
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Prices updated: 13 Oct 2026
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About this product
A 4-pin tactile push button switch with a 12 x 12 mm body, 4.3 mm height and a round dome-contact head with clear tactile feedback. The pins are normally open and close momentarily when pressed, making it a standard input button for microcontroller projects, PCBs and breadboard prototypes. Sold in packs of 10.
Specifications
- Number of pins
- 4
- Body size
- 12 x 12 mm
- Height
- 4.3 mm
- Head type
- Round dome
- Contact type
- Normally open, momentary
- Pack quantity
- 10 pcs
Frequently asked questions
How are the four pins connected?
The pins are internally joined in pairs on each side of the switch. Pressing the button connects the two pairs. Wire one pin of each pair to your signal and the other to GND or VCC, depending on your pull-up or pull-down design.
Can I use it on a breadboard?
Yes. It can be used on a solderless breadboard for temporary connections in prototypes, and it is also designed for PCB mounting.
