> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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.

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)