Rugged power supply with 94 percent efficiency for industrial and medical uses introduced by TDK

Systems designers to adjust the fan speed to provide an optimum audible noise level as low as 36 A-weighted decibels (dBA), even with an 80 percent load.
Dec. 11, 2025
2 min read

Summary points:

  • MU6 modular power supply measures just 41 mm high and operates as quietly as 36 dBA for test, medical, and industrial environments.
  • Delivers as much power as 1500 Watts at 94 percent efficiency with an input range of 85 to 264 volts AC.
  • Supports as many as 13 isolated output voltages with intelligent fan speed control for optimal performance and quieting.

SAN DIEGO – TDK-Lambda Americas Inc. in San Diego is introducing the MU6 modular power supply for test and measurement, industrial equipment, broadcast, professional audio, medical, and similar applications that require a low-profile 41-millimeter height and low audible noise.

Featuring extremely low acoustic noise and BF-ready medical isolation, the MU6 power supply can provide as much as 1200 Watts with an input of 85 to 264 volts AC (derating below 90 volts AC) and 1500 Watts with a 180 to 264 volts AC input in a compact size.

Users can configure as many as 13 isolated output voltages using TDK-Lambda's online Quick Product Finder. The MU6's patented intelligent fan speed control circuit uses a microcontroller algorithm to monitor temperature of the primary converter and each secondary module.

Adjusting the fan speed

This enables systems designers to adjust the fan speed to provide an optimum audible noise level as low as 36 A-weighted decibels (dBA), even with an 80 percent load.

The MU6 power supplies deliver 94 percent efficiency, and can operate continuously in ambient temperatures from -20 to 70 degrees Celsius with the load linearly derated to 50 percent above 50 C.

The earth leakage current is less than 300 microamps, including all tolerances, with a touch current higher than 100 microamps. For more information contact TDK-Lambda online at www.jp.lambda.tdk.com/en.

About the Author

John Keller

Editor-in-Chief

John Keller is the Editor-in-Chief, Military & Aerospace Electronics Magazine--provides extensive coverage and analysis of enabling electronics and optoelectronic technologies in military, space and commercial aviation applications. John has been a member of the Military & Aerospace Electronics staff since 1989 and chief editor since 1995.

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