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
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
TDK Corporation
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Major specifications
Model
Input voltage range
Rated output voltage
Efficiency at 24 V (200 V AC)
typ.)
Maximum output power
Cooling
Operating temperature
Leakage current
EMI
Size (W x H x D, mm)
Warranty
HMS50
HMS80
HMS100
HMS150
80 to 370 V DC / 85 to 265 V AC
5/12/15/24/48 V DC
87%
88%
89%
90%
50 W
80 W
100 W
150 W
Convection cooling
-10°C to +50°C: 100%, +60°C: 60%, +70°C: 20%
0.5 mA Max.
EN55022-B, CISPR22-B compliant
31.5 x 82 x 120
33 x 82 x 160
33 x 82 x 160
42 x 82 x 160
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, highfrequency 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/
----You can download this text and associated images from
www.tdk-lambda.com/about/press/20150520_2.html.
Further information on the products can be found under
www.tdk-lambda.com/products/sps/ps_unit/hms/indexe.html
----Contact for media
Contact
Mr. Akira TESHIMA
TDK Corporation
TDK Corporation
Tokyo, Japan
Phone
Mail
+813 6852-7102
pr@jp.tdk.com
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