YS-U5S switching power board module metal AC/DC power supply with 5V output voltage, 3-150W output power range, pulse width modulation (PWM) for electronic projects and device power conversion
YS-U5S Metal Switching Power Board Module for 5V DC Power Conversion

This YS-U5S power module serves as a core component for converting standard household alternating current (AC) into a steady 5-volt direct current (DC) supply. Housed within a robust metal casing, it is designed for integration into electronic projects, prototypes, or as a replacement power source for devices requiring a 5V input. Its key specification is an adjustable output power range from a modest 3 watts up to 150 watts, providing flexibility for different applications. The module accepts a wide input voltage of 110 to 220 volts AC, making it suitable for use in various regional electrical systems. By utilising pulse width modulation (PWM) technology, it regulates the output, aiming for a working efficiency between 60% and 90% under load.
Features and Construction

The YS-U5S module is built around standard switching power supply principles, packaged for direct use or further integration. Its construction and electrical design focus on delivering a specified DC voltage from a common AC source.
Material and Build
The module's primary structural component is a metal housing. This metal case provides physical protection for the internal electronic components and aids in dissipating heat generated during the power conversion process. The use of metal, as opposed to plastic, typically offers improved heat conduction away from sensitive components like transformers and power transistors, which is a practical consideration for a device handling up to 150 watts of output power. The build is centred on a printed circuit board (PCB) that hosts the PWM control circuitry and power components.
Size and Practical Fit
While exact physical dimensions are not provided, the module's design as a 'board module' suggests a form factor intended for mounting within an enclosure or onto a chassis. The metal case likely features mounting holes or flanges for secure installation. Its size is expected to be compact relative to its power handling capability, making it a space-efficient solution for embedding power conversion into larger assemblies, such as custom-built electronics racks, test equipment, or refurbished appliances where an internal 5V supply is needed.
Uses and Placement

The module's specifications define its suitable applications. It is a component for those with technical knowledge of electronics assembly and power requirements.
Event or Professional Use
In professional or workshop settings, this module can be used to construct reliable bench power supplies for testing and prototyping low-voltage circuits. Its 3-150W range allows it to power anything from small microcontroller boards to more demanding loads like LED arrays or small motors within the 5V limit. Technicians might use it to replace failed internal power supplies in commercial equipment, provided the voltage and current specs match. Its 110-220V AC input range offers flexibility for use in different countries or with variable input sources.
Everyday Home Use
For home electronics enthusiasts, the YS-U5S is a practical part for DIY projects. It could power a custom-built USB charging hub, serve as the supply for a homemade gaming console, or run LED lighting installations. Hobbyists working on robotics, model railways, or home automation systems often require a stable, enclosed 5V supply, which this module can provide. It is important for users to understand basic electrical safety, as the module involves mains voltage connections, and to house it in a proper insulated enclosure for any finished project.
Benefits and Buying Value

The value of this module lies in its defined specifications and ready-to-integrate format, saving time and effort compared to designing a switching power supply from discrete components.
Reuse and Low Maintenance
As a solid-state module with no moving parts, it requires minimal active maintenance. Its primary consideration is ensuring it operates within its specified temperature limits, which the metal housing assists with. The module can be reused across different projects if its 5V output and power range remain suitable. Its longevity will depend on operating conditions, such as adequate cooling and not exceeding its maximum rated load. Being a single, integrated unit simplifies troubleshooting compared to more complex multi-module systems.
Why Choose This Product
This YS-U5S module offers a concrete solution for obtaining a 5V DC power source from the mains. Its clear specifications—the 5V output, the 3-150W adjustable power band, the 60-90% efficiency, and the 110-220V AC input—allow buyers to determine if it matches their project needs precisely. The metal housing is a practical choice for heat management. It provides a functional alternative to bulky external 'wall wart' adapters by allowing a neat, internal installation. For anyone needing a specified, moderate-power 5V supply in a format they can wire and mount themselves, this module presents a direct and technically defined option.

