The Breadboard Power Supply Module is the most essential accessory for any electronics hobbyist or student. At Electrapac, we recommend this module as the safest and most convenient way to provide regulated power to your breadboard projects without the risk of using unstable battery packs or messy wiring.

Product Overview

This module is specifically designed to "plug and play" with the standard MB102 (830 point) or 400 point breadboards. It straddles the power rails, providing a firm electrical connection. It features a dual-rail design, allowing you to have 3.3V on one side of your breadboard and 5V on the other simultaneously—perfect for projects that mix modern sensors (3.3V) with traditional microcontrollers (5V).

Key Features for Electrapac Customers

• Dual-Rail Flexibility: Each side of the board has a dedicated jumper. You can set the left rail to 5V and the right rail to 3.3V, or turn either side off completely.

• Dual Input Options: Power the board using a 12V DC wall adapter for high-current projects, or use a USB cable for quick, low-power logic testing.

• Physical Power Switch: Stop unplugging cables! The onboard latching switch allows you to cut power instantly to your circuit if you spot a mistake.

• USB Output Port: The USB port can also be used as a 5V output to power external devices like a phone or a separate microcontroller board while you work.

• Built-in Protection: Features internal short-circuit protection and a power-status LED to let you know your supply is active and healthy.

Quick Start Guide

To get your Electrapac prototyping station running safely:

1. Alignment: Line up the pins on the bottom of the module with the + and - rails of your breadboard. Press down firmly until it is flush.

2. Voltage Selection: Move the yellow jumpers to the 3.3V or 5V position based on your component's requirements.

3. Power Up: Connect a 9V or 12V DC adapter to the barrel jack.

4. Toggle Switch: Press the button. The onboard LED will light up, indicating that your breadboard rails are now "Live."

Safety Tip: Avoid drawing more than 700mA. If the regulator chip feels hot to the touch, reduce the load on your circuit.

Primary Applications

• Arduino/ESP32 Prototyping: Providing clean 5V and 3.3V logic levels.

• Sensor Testing: Powering delicate 3.3V sensors without needing a separate level shifter.

• Educational Labs: A safe way for students to power circuits without accidental short-circuits to a PC USB port.

• Circuit Troubleshooting: isolating power issues by using a known-good regulated source.

• Low-Power Motor Driving: Powering small hobby servos or low-current DC motors.

Why Shop at Electrapac?

We source our Breadboard Power Modules with high-quality 1117-series regulators to ensure voltage stability and minimal ripple. At www.electrapac.com, we provide the reliable foundations that make your prototyping phase smooth and successful.