This 25pcs tactile microswitch kit is designed for makers, technicians, and DIY electronics builders who need reliable, compact momentary push buttons in a common 12x12mm footprint. Each switch body measures 12x12x7.3mm, making it a practical choice for dense PCBs, front-panel controls, and prototype boards where consistent sizing matters. The kit includes assorted coloured button caps to help you quickly distinguish functions (for example: reset vs. mode vs. select) and a storage box to keep all 25pcs organized for workshops, classrooms, and field service.
Tactile switches (often called “tact switches”) provide a distinct click feel when pressed, giving the user clear feedback without requiring a large actuator. These are momentary switches, meaning the contacts change state only while the button is pressed and return to the default state when released. This behavior is commonly used for microcontroller inputs, reset lines, menu navigation, and triggering events during testing and calibration.
This 25pcs tactile microswitch kit is designed for makers, technicians, and DIY electronics builders who need reliable, compact momentary push buttons in a common 12x12mm footprint. Each switch body measures 12x12x7.3mm, making it a practical choice for dense PCBs, front-panel controls, and prototype boards where consistent sizing matters. The kit includes assorted coloured button caps to help you quickly distinguish functions (for example: reset vs. mode vs. select) and a storage box to keep all 25pcs organized for workshops, classrooms, and field service.
Tactile switches (often called “tact switches”) provide a distinct click feel when pressed, giving the user clear feedback without requiring a large actuator. These are momentary switches, meaning the contacts change state only while the button is pressed and return to the default state when released. This behavior is commonly used for microcontroller inputs, reset lines, menu navigation, and triggering events during testing and calibration.
The 12x12mm tactile microswitch format typically uses a 4-pin through-hole arrangement where the pins are internally paired (two pins on one side are connected together, and the two pins on the opposite side are connected together). In most designs, you use one pin from each side as the two terminals of the switch. When the button is not pressed, the two sides are electrically isolated; when pressed, the switch closes the circuit between the sides. This paired-pin structure improves mechanical stability on the PCB and simplifies routing.
For microcontroller projects, these switches are commonly wired to a GPIO input with a pull-up or pull-down resistor (either external or enabled internally in firmware). Because mechanical contacts can “bounce” when pressed or released, many applications implement debouncing in software (timing filter) or hardware (RC network / Schmitt trigger input) to ensure a clean, single transition per press. If you are using the switch for reset, ensure the reset circuit follows your MCU vendor’s recommended pull-up, capacitor, and ESD practices.
25pcs tactile microswitches, coloured button caps, storage box
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