Gikfun 12×12×7.3mm Tact Tactile Push Button Switch Kit (25pcs)
Overview
A kit of 12×12mm square momentary tactile switches — the same common footprint as the IRUW kit already in this library ([[iruw-switch-button-knob-kit]]) — each fitted with a colored plastic cap for color-coded, ergonomic pressing. Standard SMD/PCB tact switch body, 4-pin, momentary/normally-open.
Key specs
- Switch footprint: 12×12×7.3mm, 4-pin momentary tactile switch
- Pack size: 25 pieces, 5 colors (5 of each per Gikfun’s standard AE1027 assortment)
- Rated life: ~30,000 actuations at 12V DC (per Gikfun’s listing)
- Actuation: momentary, normally-open
Pinout
Standard 4-pin tactile switch layout (applies to each switch):
| Pin pair | Function |
|---|---|
| Pins 1 & 2 (same side) | Common (internally linked) |
| Pins 3 & 4 (opposite side) | Common (internally linked) |
| Pressing the button | Connects side 1-2 to side 3-4 |
Same convention as the IRUW kit — use one pin from each side; the redundant second pin per side is for mechanical stability, not a separate signal.
Wiring / typical usage
Wire one leg to a GPIO (with pull-up/pull-down, internal or external) and the opposite leg to GND or the logic rail — pressing connects them. Standard mechanical-switch debounce applies (firmware or a small capacitor), same as any bare tactile switch. The colored caps are cosmetic/ergonomic only.
Code / libraries
N/A — passive switch, read as a standard debounced digital input.
Source material
- Product page: Gikfun 12x12x7.3mm Tact Tactile Push Button Momentary SMD PCB Switch with Cap (Pack of 25pcs), AE1027
- Purchase link: Amazon, “Gikfun 12x12x7.3 mm Tact Tactile Push Button…” ($9.78)
- Product photo:
/inventory/gikfun-tact-switch-kit/product-photo.jpg— sourced directly from Gikfun’s own product page for this exact SKU (AE1027).
Verification
Product identity and specs confirmed directly against Gikfun's own product listing for this SKU (AE1027) — high confidence. Pin layout is inferred from the standard 12x12mm tactile switch family convention (same as the already-documented IRUW kit), not independently re-verified against this specific batch's switches.
Notes / gotchas
- Same footprint/family as [[iruw-switch-button-knob-kit]] already in the library — interchangeable for most panel/breadboard uses, differing only in cap color assortment and pack size (25 vs. 12).
- “12x12x7.3mm” is the switch body only, not including the added colored cap — factor in extra clearance for enclosure cutouts.