MB102 Breadboard Power Supply Module 3.3V 5V

The MB102 Breadboard Power Supply Module plugs straight onto the power rails of a standard MB102 830-point breadboard and gives your circuit regulated 3.3 V and 5 V supplies. Each side of the board can be set to 3.3 V or 5 V with a jumper, so you can power a 5 V Arduino sensor on one rail and a 3.3 V ESP32 module on the other. It is a simple, low-cost way to power breadboard projects from a DC adapter or USB.

MB102 Breadboard Power Supply Module Specifications

• Input voltage: 6.5–12 V DC through the DC barrel jack, or 5 V via USB
• Output voltage: 3.3 V and 5 V, selectable separately for each rail
• Maximum output current: under 700 mA
• Regulators: AMS1117-3.3 and AMS1117-5.0 linear regulators
• Controls: on/off switch and power LED
• Fits: MB102 830-point solderless breadboards

MB102 Breadboard Power Supply Module Applications

• Powering breadboard prototypes without a lab power supply
• Mixed 3.3 V and 5 V circuits with ESP32, ESP8266 and Arduino modules
• Supplying sensors, displays and logic ICs during testing
• Electronics classes and student projects

What's in the Box

• 1 × MB102 breadboard power supply module

Tip: Check that the + and – pins line up with the red and blue rails before switching on. Linear regulators get hot at high input voltages, so a 9 V adapter is a good choice; for motors or servos use a separate supply.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.