Description
About this item:
The AC-DC 220V to 5V USB Power Supply Module is a compact and efficient power conversion module designed to step down mains AC voltage into a regulated 5V DC supply suitable for USB-powered devices. With an input range of 100V to 240V AC, the module can be directly connected to household or industrial AC lines, making it versatile for global use.
This module features a step-down transformer and supporting circuitry, including filter capacitors, resistors, diodes, and surge protection components (MOV) to ensure safe and reliable operation. The onboard USB Type-A female connector allows easy plug-and-play compatibility with USB cables and devices.
Providing an output current of 700mA to 1A, it can power a wide range of applications, such as Arduino boards, ESP8266/ESP32 modules, sensors, and small IoT projects. Its isolated design enhances safety, while the small form factor makes it convenient for integration into DIY enclosures and power supply systems.
Key Specifications
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Input Voltage: 100V–240V AC (50/60Hz)
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Output Voltage: 5V DC
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Output Current: ~700mA to 1A
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Output Port: USB Type-A female
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Conversion Type: AC-DC step-down transformer
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Circuit Protection: MOV for surge protection, filtering components for stability
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Size: Compact module (~3–5 cm length, varies by version)
Applications
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Powering microcontrollers (Arduino, ESP8266, ESP32, etc.)
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USB device charging (low-power devices)
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IoT projects and embedded systems
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DIY electronics requiring regulated 5V DC supply
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Small home automation circuits
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