# 12mm Coin Cell Breakout w/ On-Off Switch

**Type:** Product page · **SKU:** ADA1867 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/12mm-coin-cell-breakout-w-on-off-switch.html ([markdown](https://core-electronics.com.au/12mm-coin-cell-breakout-w-on-off-switch.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

**Warning: This product requires a button battery to operate which is hazardous to young children. Do not use this product for projects that are potentially accessible to young children.**

Simple but effective - this breakout board has a CR1220 coin cell battery holder soldered on, an on/off switch and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. There's two ground pins, one 'switched' power pin, and one pin that is always on.

Comes with one fully assembled and tested breakout plus a small stick of 0.1" header so you can solder it on and plug into a breadboard.

[We also have a version without a switch](https://core-electronics.com.au/12mm-coin-cell-breakout-board.html)

## Technical Details

- [EagleCAD PCB files on GitHub](https://github.com/adafruit/Adafruit-SMT-Breakout-PCBs)
- [Fritzing object in the Adafruit Fritzing library](https://github.com/adafruit/Fritzing-Library)

Dimensions:

- 25mm x 23mm x 1.5mm / 1" x 0.9" x 0.06"
- Mounting hole distance: 18mm x 19.8mm / 0.7" x 0.78"
- Weight: 2g

 ![](https://core-electronics.com.au/media/wysiwyg/resources/rohs_icon.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/8/1867-00.jpg)