Product News: Electrical Equipment & Systems

AC/DC Power Supplies are built for extended operational life.

Press Release Summary:

AC/DC Power Supplies are built for extended operational life.

Apr 30, 2014 - Operating from universal input of 47–63 Hz, 85–265 Vac (300 Vac for 5 sec), TDK-Lambda RWS-B series offers nominal outputs of 5, 12, 24, and 48 Vdc with adjustment range of ±10% (min). Convection-cooled 100 and 150 W models operate from -10 to 70°C with derating above 40°C, while fan-cooled 300 and 600 W models up to 70°C with derating above 50°C. Operating efficiencies reach up to 89%, promoting electrolytic capacitor service life ratings of 10 years min.

TDK-Lambda Americas Inc. - National City, CA

Original Press Release

Power Supply Product 100W to 600W Power Supply Series has Five Year Warranty

Press release date: Apr 01, 2014

TDK Corporation announces the introduction of the five year warranty TDK-Lambda RWS-B series of AC-DC power supplies, designed to provide solid performance at an economical price.  The product line up has four power levels and compact case sizes, rated at 100, 150, 300 and 600W.

Operating from a universal input of 47–63Hz, 85–265Vac (300Vac for 5 seconds), the RWS-B series is available with nominal outputs of 5, 12, 24 and 48Vdc with an adjustment range of a minimum of +/-10%.  The series is designed to meet a wide range of applications, including industrial, test & measurement, broadcast, communications and LED signage.

The convection cooled 100 and 150W models operate from -10°C to 70°C with derating above 40°C and the fan cooled 300 and 600W models up to 70°C with derating above 50°C.  In addition over voltage and over current protection is included.

High operating efficiencies of up to 89% reduce internal waste heat and component temperatures, resulting in electrolytic capacitor service life ratings of at least ten years.

The TDK-Lambda RWS-B series is certified to the safety standards of UL/CSA 60950-1, UL508 (on certain models), is CE marked according to the Low Voltage, RoHS2 Directives, and additionally evaluated to EN 60950-1.  All models offer curve B conducted and radiated performance to EN55011/EN55022-B, FCC class B and VCCI-B.

More information can be obtained at the following TDK-Lambda Americas website,, or by calling 800-LAMBDA-4.  Product availability for the RWS-B series can be found via the link to TDK-Lambda’s distributor network (see “Check Distributor Stock to Buy”) at

Major applications
• General industrial and commercial automation, test and measurement, broadcast, LED signage and communications equipment

Main features and benefits
• Five Year Warranty
• Compact case sizes
• UL508 certified (select models)
• Long service life (conservative electrolytic capacitors ratings)
Major specifications
Model   RWS100B RWS150B RWS300B RWS600B
Input voltage range Vac 85 to 265 (300Vac for five seconds)
Nominal output voltages Vdc 5, 12, 24 & 48
Output power W 100 150 300 600
Cooling - Convection Internal Fan
Efficiency (24V output at 200Vac) % 87 89 88 88
Operating ambient temperature °C -10°C to +70°C  (Derating applies)
Safety - UL/CSA/EN 60950-1, UL508 (Select models) CE Mark (LV & RoHS2)
Size (W x H x D) mm 94x39x108 94x41x128 102x41x170 120x61x190
Warranty Years Five

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 2013, TDK posted total sales of USD 9.1 billion and employed about 80,000 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.
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Contacts for regional media
Region Contact  Phone Mail
David Norton
TDK-Lambda Americas
(619) 575 4400