MB102 Dual Channel 3.3V 5V Breadboard Power Supply Module

MB102 Dual Channel 3.3V 5V Breadboard Power Supply Module is an essential, highly versatile tool for powering electronic prototypes directly on a standard MB-102 breadboard. This module efficiently converts a 6.5V to 12V DC input into stable, regulated 3.3V and 5V DC outputs. Consequently, it eliminates the clutter and complexity of external power supplies and messy wiring. Furthermore, its dual-channel design allows you to independently select the output voltage (3.3V or 5V) for the breadboard’s two power rails, significantly increasing testing flexibility. Therefore, the MB102 module simplifies the process of supplying power to microcontrollers, sensors, and logic circuits in your development projects.

Key Features:

• Dual Independent Voltage Rails: You can select 5V or 3.3V output for each of the two power rails independently, allowing simultaneous testing of mixed-voltage systems.
• Flexible Power Input: The module accepts power via either a DC barrel jack (6.5V to 12V) or a USB connector, providing multiple options for benchtop or portable use.
• Integrated On/Off Switch: A dedicated switch controls the power flow to the breadboard, therefore allowing you to easily reset your circuit without unplugging the main power source.
• Maximum Output Current: The module reliably delivers up to 700 mA per rail, which suffices for powering most microcontrollers (MCU) and small peripheral circuits.
• USB Power Output: Includes a dedicated pin header to supply 5V directly, enabling the power-up of external USB-powered devices.

Technical Specifications:

• Input Voltage (DC Jack): 6.5 V to 12 V DC
• Output Voltage (Selectable): 3.3 V and 5 V (Independently selectable for each rail)
• Maximum Output Current: ≤ 700 mA per output channel (Total current draw affects performance)
• Voltage Regulator Chip: AMS1117-5.0 and AMS1117-3.3 (or equivalent)
• Power Indicator: On-board LED illuminates when the module is active.
• Reverse Polarity Protection: Some versions include reverse polarity protection for the DC input.

Mechanical Specifications:

• Compatibility: Designed specifically to fit standard 400 and 830 tie-point MB-102 breadboards.
• Mounting Pins: Male header pins align perfectly with the breadboard’s power rails.
• Input Connector: Standard 5.5 mm x 2.1 mm DC barrel jack.
• Material: Durable PCB construction with quality soldering and components.

Dimensions:

• Module Length: ≈ 55 mm
• Module Width: ≈ 35 mm
• Pin Spacing: Designed to fit the standard breadboard rail spacing (≈ 16 mm between the two main rows of header pins).
• Weight: ≈ 15 g (Lightweight for portable project boxes)

Pinout and Wiring:

• DC Barrel Jack / USB Input: Connect your external 6.5 V to 12 V power source here.
• Power Rail Headers: These pins insert into the breadboard’s power rails (V+ and GND rails).
• Jumper Shunts: Use the included jumper caps to select the desired voltage (3.3V or 5V) for the corresponding power rail.
• Output Header: The 5V, 3.3V, and GND pins on the side allow you to tap the regulated power for external connections or meters.
• Wiring Note: Always ensure the jumper shunts correctly specify the voltage required by the components on that particular breadboard rail to avoid damage.

Datasheet Reference:

• Download MB102 Power Supply Module Datasheet

Commonly Used in:

• Hobbyist Electronics: Serves as the primary power source for Arduino and Raspberry Pi Pico projects.
• Educational Kits: Integrated into lab setups for teaching basic electronics and digital logic.
• Rapid Prototyping: Provides stable voltage regulation during the quick development and testing phase of new circuit designs.

Applications:

• MCU/Sensor Power: Powers 3.3V components (like ESP32/32) and 5V components (like Arduino UNO) simultaneously.
• Logic Level Shifting: Allows testing of circuits that span both 3.3V logic and 5V logic interfaces.
• Component Testing: Provides a clean, regulated power source to reliably test LEDs, op-amps, and discrete components.

Equivalent Models:

• MBV2 Power Module: A similar breadboard power supply module, however, it may feature a different regulator chip or layout.
• 3.3V/5V Breadboard Mini Power Module: Various compact versions exist, usually offering the same core functionality but with a smaller footprint.
• AMS1117 Regulator Boards: Any board built around the AMS1117 regulator chips offers comparable regulation performance.

Package Includes:

• 1 x MB102 Dual Channel 3.3V 5V Breadboard Power Supply Module