The 5V 700mA (3.5W) Power Supply Module is a compact AC to DC SMPS converter board designed to provide a stable 5V regulated output from mains power. It is ideal for powering small electronics, microcontroller projects, IoT devices, sensors, and embedded systems where a reliable 5V supply is required. With an isolated switching design, it delivers efficient performance in a small footprint, making it perfect for PCB integration and space-saving power solutions.
Core Power Specifications
• Module Type: AC to DC SMPS power supply module
• Output Voltage: 5V DC regulated
• Output Current: Up to 700mA
• Output Power: 3.5W max
• Output Type: Single DC output
Electrical & Input Details
• Input Voltage: 110V – 220V AC (50/60Hz)
• Regulation Type: Switching mode power supply (SMPS)
• Isolation: Transformer isolated design
• Efficiency: High efficiency compared to linear regulators
• Ripple & Noise: Low ripple output (typical for SMPS modules)
Output & Connection
• Output Terminals: +5V and GND pads
• Stable 5V output for sensitive electronics
• Supports continuous operation within rated load
• Suitable for powering microcontrollers directly
Protection & Safety
• Over-current protection (depends on module design)
• Short-circuit protection (typical for SMPS modules)
• Compact PCB layout for safe integration
• Requires proper insulation and enclosure in mains applications
Physical Characteristics
• Compact PCB size for embedded use
• Lightweight power module design
• Easy solder pad connections
• Ideal for custom PCBs and DIY power boards
Compatibility
• Arduino boards and 5V microcontrollers
• ESP8266 / ESP32 (with 3.3V regulator if needed)
• Relay modules, sensors, and small displays
• IoT devices and home automation controllers
Key Advantages
• Direct mains to 5V conversion in a compact form
• Reliable 5V output with good load stability
• Great for space-constrained embedded products
• Eliminates the need for bulky adapters
Technical Insights
• Always maintain proper clearance from mains terminals
• Use a fuse and MOV protection for safer installations
• For best reliability, run below the maximum load continuously
• Mount in a ventilated enclosure for long life
Applications
• Smart home control boards
• DIY embedded power supplies
• IoT and WiFi device power source
• Arduino-based automation panels
• Small LED lighting control systems
Pro Tip
• Add a 470µF capacitor on output for better stability under sudden loads
• Use proper AC insulation and avoid touching live pins
• Test output voltage before connecting your circuit
• Recommended for permanent installations only with safe enclosure
Package Includes
• 1 × 5V 700mA (3.5W) Power Supply Module