> **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

# Breadboard Power Supply 5V/3.3V

**Type:** Product page · **SKU:** DFR0140 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/breadboard-power-supply-5v-3-3v.html ([markdown](https://core-electronics.com.au/breadboard-power-supply-5v-3-3v.html.md))

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard.

## Pricing

- **Price:** $7.70 (inc GST) — $7.00 AUD, exc GST
- **Quantity discounts:** 6+ $6.65 (exc GST) · 12+ $6.37 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 13 today, and up to 500 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0140:1` (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/DFR0140:1.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

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard. It can be either powered from 6-12 DC2.1 power jack or from USB power. The maximum current it can provide is 500mA.

### Specifications

- Input voltage: 6-12V (Power Jack) 5V (USB)
- Output voltage:3.3V/5V
- Output current:500mA
- On/Off switch
- Power status LED
- Pin Head 5/3.3V output
- Central positive DC2.1 power jack
 
### Documents

- [Schematics](https://core-electronics.com.au/attachments/localcontent/DFR0140_Schematics_8881956ee7.pdf)
 
### Parts List

- Breadboard Power Unit (Assembled) (1 unit)

## Guides for this product

- [Our recommendation on Breadboard Power Supplies](https://core-electronics.com.au/guides/prototyping/our-recommendation-for-breadboard-power-supplies-1/)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0140-1.jpg)