MB102 Breadboard Power Supply Module 3.3V 5V

Weight 0.011 kg
Dimensions 5.3 × 3.3 cm
Operating Input voltage

6.5 Volts – 12 Volts

Output voltage

3.3 Volts or 5 Volts

Maximum Output Current

< 700 mA


MB102 Breadboard Power Supply module is one of the essential and low-cost components in the electronics labs. It powers the circuits and is also used for testing purposes. The small compact module is power efficient and can be operated using an input voltage range of 6.5 Volts to 12 Volts. The module has two voltage regulators which output 3.3 Volts and 5 Volts. Mb-102 also has an onboard capacitor for noise suppression and smoothing the input voltage.

The module is facilitated with a switch to manually turn on/off the module while connected to the power source. It comes with an additional USB connector and berg headers which can also be configured accordingly. The component is useful especially for prototypes and small breadboard circuits.

Features and Specifications

  • Operating Input voltage: 6.5 Volts – 12 Volts
  • Output voltage: 3.3 Volts or 5 Volts
  • Maximum Output Current: < 700 mA
  • Module Dimensions: 5.3cm x 3.5cm
  • The module has an on/off switch to control the external input switch.
  • Along with the DC port, the Breadboard module has a USB port.
  • The USB port provides input to the module to output power to the circuits.
  • The module has selectable power rails that can be controlled independently.
  • The module can switch between output voltages i.e 3.3V and 5V.
  • Plug the BBPS module directly into the breadboard.
  • For easiness, the BBPS module also has two pairs of onboard 3.3V and 5V DC output berg headers.

How to use BM102 Power Supply Module?

This helpful BBPS module comes in handy in a vast number of projects. It can be interfaced very easily.

To power the Breadboard

To power the breadboard through the BBPS module, mount it on to the breadboard. It should be placed in such a way that the left and right jumpers of the module coincide with the power rails of the breadboard. Connect the input power supply either regulated or unregulated to the DC input jack. Turn on the switch to check the LED. If the module is energized, the LED lights up. Adjust the jumper to the desired output voltage. If you want the bread power rails of 5 volts, adjust the jumper accordingly. The left and right jumpers are two independent channels and can provide different voltages simultaneously.

Breadboard Power Supply module interfacing with breadboard

To power peripherals

Connect similarly as previously explained. Now use female jumpers to connect the berg headers to power up other components and microcontroller units. It is also selectable between 3.3Volts and 5 Volts.

Alternate Options

  • XD-42 Dual Channel Breadboard Power Supply


  • Breadboard circuits
  • DIY Projects