> **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

# Barrel Jack Power Switch - M-F (3")

**Type:** Product page · **SKU:** COM-11705 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/barrel-jack-power-switch-m-f-3.html ([markdown](https://core-electronics.com.au/barrel-jack-power-switch-m-f-3.html.md))

We use barrel jacks a lot around here and sometimes we need to pop a switch into the mix. That usually means hacking up a perfectly good barrel jack extension cable, but the whole point of using the barrel jacks was so that we wouldn’t have to hack things apart… Well, we found a solution: The Barrel Jack Power Switch.

## Pricing

- **Price:** $6.55 (inc GST) — $5.95 AUD, exc GST
- **Quantity discounts:** 5+ $5.77 (exc GST) · 25+ $5.65 (exc GST) · 100+ $5.42 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 24 and Aug 28.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=COM-11705:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/COM-11705:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **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

Sparkfun use barrel jacks a lot around here and sometimes Sparkfun need to pop a switch into the mix. That usually means hacking up a perfectly good barrel jack extension cable, but the whole point of using the barrel jacks was so that Sparkfun wouldn’t have to hack things apart… Well, Sparkfun found a solution: The Barrel Jack Power Switch.

 Okay, it’s nothing fancy but it *is* really useful. Plug your power supply into one end and the other into your project and, just like that, you’ve got a power switch! The on-off rocker switch has a good stiff ‘click’ to it, so it isn’t easy to accidentally switch. It’s also fairly small so it won’t add too much unnecessary bulk to your project.

**Dimensions:**

- Switch Body: ˜ 61 x 27 x 23mm
- Cable: 85mm long (each side)
- Barrel Connector: 5.5x2.1mm

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/b/a/barrel_jack_power_switch_-_m-f__3_inch____com-11705__01.jpg)