> **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

# 4A BEC / Voltage Regulator (6-24V Input, Adjustable 5, 6, 8.4, 12V Output, XT30 Connectors)

**Type:** Product page · **SKU:** GB-3119-2829-0004 · **Brand:** [goBilda](https://core-electronics.com.au/brands/gobilda)
**Page:** https://core-electronics.com.au/4a-bec-voltage-regulator-6-24v-input-adjustable-5-6-84-12v-output-xt30-connectors.html ([markdown](https://core-electronics.com.au/4a-bec-voltage-regulator-6-24v-input-adjustable-5-6-84-12v-output-xt30-connectors.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: GB-3119-2829-0006.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/GB-3119-2829-0006

## 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

This 4A BEC / Voltage Regulator reduces input voltage down to one of four selectable output voltages.

The BEC is highly mountable within the goBILDA® ecosystem thanks to thru-holes on the 32mm square pattern! Two holes are pre-equipped with case-fastening screws that you can easily replace so you can use four screws in the installation of the BEC to your build.

### Tech Terms

In the world of R/C hobbyists, this component is known as a Battery Eliminator Circuit (BEC) for how it eliminates the need for additional batteries when a project’s components require different voltages.

To the electrical engineering crowd, meanwhile, this type of BEC is known by several other names. One is “switching regulator." A switching regulator is more efficient than other regulators, including linear ones. And within the world of switching regulators, it’s specifically named a “buck converter” because it opposes (“bucks off”) voltage from its input.

Buck converters themselves are sometimes called “step-down converters” or “step-down voltage regulators.” As the name implies, this sort of voltage regulator specifically regulates voltage down—and not up—from input voltage.

### Tech Tip

Incoming voltage (accepted via the BEC’s XT30 input) must be at least 1V above the selected output voltage, set at 5V by default. You can change the voltage provided by the BEC’s XT30 output to either 6V, 8.4, or 12V by moving a jumper included in BEC's side.

### Downloads

- [ STEP File ](https://core-electronics.com.au/attachments/localcontent/3119-2829-0004_1259218bdf2.zip)
 
### Specs

 | Weight | 25g |
|---|---|
| Output Voltage | 5V, 6V, 8.4V, 12V |
| Dropout Voltage | 1V |
| Typical Efficiency | 83–93% |
| Output Current | 4A Continuous (5A Burst) |
| Output Voltage Ripple | = 300mVpp |
| No Load Current | 10–20mA |
| Input Voltage (@5V Output) | 6–28V |
| Input Voltage (@6V Output) | 7–28V |
| Input Voltage (@8.4V Output) | 10–28V |
| Input Voltage (@12V Output) | 13–28V |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/B/GB-3119-2829-0004-1.jpg)