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Power Supply Products: HMS Series of Compact Unit Type Power Supplies Usable for DC and AC Lines

  • Lower limit of DC input voltage range extended by 10 V
Power Supply Products: HMS Series of Compact Unit Type Power Supplies Usable for DC and AC Lines

May 20, 2015

TDK Corporation announces the successful development of the HMS series of compact unit type power supplies under the TDK-Lambda brand, designed for long service life and high efficiency in a small package. The lineup comprises four models rated for 50 W, 80 W, 100 W, and 150 W, to meet a wide range of customer needs. TDK-Lambda Corporation will start accepting orders for the new products from June, and mass production will begin in July 2015.

The HMS series can obtain input voltage from either DC lines or AC lines. The lower limit of the new series for operation on a DC input is 80 V (load factor 80%), which is 10 V lower than with the existing series. When handling voltage drops of a power source such as a battery, this broadens the operation range and helps to improve equipment performance. The expected electrolytic capacitor service life is a full 10 years when operating continuously (24 hours a day) at a load factor of 50% in a 40ºC environment. This impressive rating will contribute significantly to the reliability of end products in which the power supplies are used.

Compared to the existing series, efficiency has been improved by 4%, and internal heat generation has also been reduced. This made it possible to reduce the volume by 55%, thereby providing the customer with much flexibility for equipment design.

Main applications

  • Power plant control equipment, uninterruptible power supplies, power generators

Main features

  • Support for both DC and AC lines, with input voltage range rating as follows:
    ・80 to 370 V DC
    (50 W to 100 W types: load factor 80% at under 110 V DC; 150 W type: load factor 80% at under 95 V DC
    ・85 to 265 V AC
    (load factor 60% at under 75 to 85 V AC, 20 seconds guaranteed)
  • Long service life: Expected service life of electrolytic capacitors 10 years
    (at 40ºC ambient temperature, load factor 50%, 24 hours a day operation, in standard installation)
  • High efficiency: 88% (HMS150-24) * Previous model: 84% (MS-11-24) * with 100 V AC input
  • Smaller form factor: 55% less volume (HMS150-24 compared to MS-11-24)
  • Wide ambient temperature range for operation: -10°C to +70°C (-10°C to +50°C at load factor 100%)
  • Standard model equipped with cover

Major specifications

Model HMS50 HMS80 HMS100 HMS150
Input voltage range 80 to 370 V DC / 85 to 265 V AC
Rated output voltage 5/12/15/24/48 V DC
Efficiency at 24 V (200 V AC) typ.) 87%88%89%90%
Maximum output power50 W 80 W 100 W 150 W
Cooling Convection cooling
Operating temperature -10°C to +50°C: 100%, +60°C: 60%, +70°C: 20%
Leakage current 0.5 mA Max
EMI EN55022-B, CISPR22-B compliant
Size (W x H x D, mm)31.5 x 82 x 120 33 x 82 x 16033 x 82 x 16042 x 82 x 160
Warranty 5 years (with conditions)

About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems* marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2015, TDK posted total sales of USD 9.0 billion and employed about 88,000 people worldwide.

* The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.

About TDK-Lambda Corporation

TDK-Lambda Corporation, a group company of TDK Corporation, is a leading global power supply company providing highly reliable power supplies for industrial equipment worldwide. TDK-Lambda Corporation meets the various needs of customers with our entire range of activities, from research and development through to manufacturing, sales, and service with bases in five key areas, covering Japan, Europe, America, China, and Asia.
For more details, please pay a visit to http://www.tdk-lambda.com/en/


Contact for media

Contact Phone Mail
Mr. Akira TESHIMA TDK Corporation
Tokyo, Japan
+81 3 6852-7102 pr@jp.tdk.com