Description
A 12 x 12 mm momentary tactile push button for PCBs and project panels. It is twice the width of a standard 6 mm tactile switch, with a square stem that takes the common push-on caps made for 12 mm tactile switches. Sold per switch with a minimum order of 5.
Specifications
Datasheets
What’s in the box
Order at least 5. The quantity in your basket is the number of switches you receive. Caps are not included.
Great for
Wiring & getting started
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Use two diagonal leads
The four leads form two sides of one switch. Diagonally opposite leads are always on different sides, so wiring to a diagonal pair works whichever way round the switch sits.
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Connect to your board
Wire one lead to GND and the other to a digital pin set to INPUT_PULLUP. The pin reads HIGH when released and LOW while pressed.
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Debounce in code
The contacts bounce for a few milliseconds. Ignore changes for about 20 to 50 ms after each press, or use a debounce library.
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Add a cap if you like
Push a 12 mm square-stem tactile cap straight down onto the stem. A multimeter on continuity confirms which leads are joined before you solder.
Note: The lead spacing and height are approximate. Fit one switch to your board or panel before drilling a batch or ordering PCBs. For a smaller button see the 6x6mm 4-pin tactile switch.
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