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A thin rectangular membrane keypad with four round buttons and a short flat cable ending in a five-pin header strip

Adafruit

Adafruit Membrane 1x4 Keypad with Extras

SKU CH-7KV2-9RE1W

Four-button membrane keypad with individual wires, no matrix code needed, adhesive backing, and an included 5-pin header strip

  • Product typeSensors
  • Four dedicated buttons simplify wiring without matrix code
  • Soft adhesive-backed membrane mounts directly on enclosures
  • Extra-long 5-pin header plugs straight into breadboards
  • Thin 20.07 mm profile fits tight project spaces
  • Light 2.83 g weight adds minimal mass to builds

Simple four-button input

This membrane keypad provides four discrete switches without a matrix, so each button connects directly to a single wire. The soft overlay carries a removable paper backing that exposes strong adhesive for mounting on an enclosure. A 5-pin extra-long header strip is included for breadboard or perfboard prototyping.

Replaces custom button wiring

Builders who currently solder individual tactile switches and run separate leads can use this keypad to eliminate that assembly step. The jump is worth it when a compact, pre-wired 1x4 layout fits the panel cutout and the adhesive mounting simplifies the mechanical design.

Consistent feel under repeated presses

The membrane construction delivers uniform actuation across all four positions during extended input sessions. With no matrix scanning overhead, the electrical response remains immediate whether the keypad is used for occasional code entry or continuous control sequences.

How it compares

Measured against everything we stock in Sensors, Transducers & Thermometers, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 98% of the 255 comparable items (median $39.99).

Specifications

Product
Product typeSensors

Questions about this item

What are the exact keypad dimensions so I can check it fits my enclosure?

The keypad measures 69.14 mm by 20.07 mm, which is 2.72 inches by 0.79 inches, with the cable and connector adding 87.31 mm length and 14.28 mm width.

How do I mount the keypad and where do people go wrong?

Peel the paper backing to expose the adhesive, stick the membrane onto a clean enclosure surface, then feed the cable through a slot; the common mistake is applying it before the surface is dust-free.

What maintenance will the keypad and its header strip need over time?

The adhesive bond is permanent once applied, so the membrane itself needs no upkeep; the 5-pin 0.1 inch pitch header may need reseating if vibration loosens the breadboard connection.

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