Power Electronics

Compact 150W switched-mode power supply (SMPS) in 4”x2” package

RAC150-G

RECOM’s new RAC150-G series is a switched-mode power supply (SMPS) with high power density designed for applications operating with limited airflow. Under natural convection, the SMPS provide 125W at +50°C from a compact 4” by 2” open-frame package and even up to 122W in an aluminium case; under forced air cooling, a constant output of up to 150W is achieved. Ensuring the SMPS’s long service life and reliability at such a high power density, it requires overcoming a number of design challenges, such as placing the SMD semiconductors on the board in such a way as to dissipate excess heat through copper surfaces acting as heat sinks on the board and through an aluminium base plate via heat-conducting pads.

The power supplies operate at input voltages between 90 and 264VAC at temperature ranging from -30°C to +70°C. Modules with 12V, 24V, and 48V outputs come with short-circuit as well as overvoltage protection and efficiency of 91%.

These SMPS modules are IEC/EN/UL 60950-1 and IEC/EN/UL62368-1 certified, and comply with the RoHS directive and EN55022/24 Class B for electromagnetic compatibility. The modules come with a three-year warranty. Samples are now available from all authorized distributors.

For more information please visit  www.recom-power.com

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