The MB102 Breadboard Power Supply Module is a compact and convenient power solution designed specifically for standard MB102 solderless breadboards. It allows easy selection of 3.3 V or 5 V regulated output, making it ideal for powering Arduino projects, sensors, modules, and prototyping circuits. With multiple input options and onboard regulation, it simplifies power management during electronics development and testing.
Core Module Specifications
• Module Type: Breadboard power supply module
• Model: MB102
• Output Voltages: 3.3 V and 5 V (selectable)
• Regulation: Onboard linear voltage regulators
Electrical & Interface
• Input Voltage: 6.5 V – 12 V DC (via DC jack or pin header)
• Output Voltage Options:
– 3.3 V
– 5 V
• Output Current: Up to ~700 mA (regulator dependent)
• Output Interface: Breadboard power rails
• Selection Method: Slide switches for each rail
Performance Characteristics
• Stable regulated output for prototyping
• Independent voltage selection for left and right rails
• Suitable for low to medium power circuits
• Reliable operation with proper input supply
Physical Characteristics
• Module Type: Plug-in breadboard power module
• Compatibility: Standard MB102 breadboards
• Connectors: DC barrel jack, USB, pin headers (variant dependent)
• Compact and lightweight design
Compatibility
• Arduino Uno / Nano projects
• ESP8266 / ESP32 (3.3 V selection)
• Sensors and modules
• Logic ICs and breadboard circuits
• DIY electronics prototyping
Key Advantages
• Quick and clean breadboard power setup
• Dual voltage support (3.3 V and 5 V)
• No external regulator wiring required
• Beginner-friendly and reusable
Technical Insights
• Linear regulators dissipate heat at higher input voltages
• Use lower input voltage for better efficiency
• Not suitable for high-current motors or loads
• USB input typically limited to lower current
Applications
• Breadboard prototyping
• Sensor and module testing
• Educational electronics labs
• Rapid circuit development
• Embedded system experiments
Pro Tip
• Use 7–9 V input for minimal heat generation
• Verify voltage selection before connecting sensitive components
• Avoid drawing high current from both rails simultaneously
• Disconnect power before changing jumper or switch settings
Package Includes
• 1 × MB102 Breadboard Power Supply Module