MB102 power supply module - 3.3 V and 5 V, for breadboards

Product overview

• Power supply module for standard breadboards with two adjustable outputs
• Provides stable 3.3 V or 5 V, selectable via jumper
• Input via barrel jack (6.5–12 V) or USB (5 V)
• Maximum output current below 700 mA
• Protection against incorrect input voltage via Schottky diode
• On/off switch with status LED
• Plugs directly into the power rails of 400-point and 800-point breadboards

Product description

This power supply module supplies breadboards with regulated voltage via the side power rails. It provides two stable outputs of 3.3 V and 5 V, selectable via jumper. This makes it possible to operate components with different voltage requirements simultaneously on the same breadboard.

Power is supplied via a barrel jack (6.5 to 12 V) or a USB port (5 V). The maximum output current is below 700 mA, which is sufficient for typical microcontroller, sensor, and display circuits. The integrated Schottky diode protects against damage caused by reverse input polarity.

A slide switch disconnects the entire power supply, while an LED indicates the operating status. The module plugs directly into standard breadboards with 400 or 800 contact points, making it suitable for quickly building and testing circuits during development, training, and laboratory work.

Operation requires a power source providing 6.5 to 12 V DC or a USB power supply with a current capacity of at least 700 mA. The module is not designed for voltages above 12 V or AC voltage.

Safety information

This module is intended exclusively for building prototypes and for testing and development purposes and is not suitable for operation at mains voltage. Use only DC voltage sources within the specified voltage range. Work on or near electrical installations must be carried out by qualified electricians; if you are unsure about the power supply, consult a qualified electrician before commissioning.

Scope of delivery

• 1x power supply module for breadboards, type MB102 - 3.3V, 5V