Mean Well IRM-45-12ST power supply

The Mean Well IRM-45-12ST is a compact and highly efficient switched mode power supply module, designed to deliver a stable 12V output for a wide range of electronic applications. Its screw terminal connection simplifies installation, making it an ideal choice for industrial control systems, automation equipment, LED lighting, or any project requiring a reliable, low-noise power source. With a maximum output current of 3.8A and a total power of 45.6W, this unit comfortably powers sensors, relays, microcontrollers, and small motors in both professional and hobbyist setups.

Technically, the IRM-45-12ST operates from a universal AC input of 85 to 305VAC, ensuring compatibility with mains supplies worldwide. It boasts an impressive efficiency of 87.5%, which minimises energy loss and heat generation, while its standby power consumption is less than 0.15W for energy-conscious designs. The module features built-in protection against overcurrent and overvoltage, safeguarding connected equipment. Ripple and noise are tightly controlled to just 150mVp-p, ensuring clean DC output. Cooling is achieved via free air convection, meaning no fan is required—perfect for silent or dust-sensitive environments. Housed in a compact 109 x 52 x 33.5mm chassis, this Mean Well supply combines robust performance with space-saving convenience.