Product News: Electrical Equipment & Systems

Power Supplies feature 10-yr electrolytic capacitor lifetime.

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Press Release Summary:

April 14, 2014 - Operating from universal input of 85–265 Vac, ZWS300BAF Series comprises 12, 15, 24, 36, and 48 V models, each adjustable by up to ±10% to accommodate non-standard system voltages. Units operate from -10 to +70°C, allowing 100% load operation in 40°C convection cooled environment and 60% load at 70°C with 1.4 m/s airflow. With active PFC that meets IEC61000-3-2, series has 3 kVac input to output isolation and meets conducted and radiated EMC conforming to EN55011/EN55022B and FCC-B.

TDK Corporation

Original Press Release

Low Voltage Models Added to ZWS300BAF Series

Press release date: April 1, 2014

TDK Corporation introduces the addition of 12V and 15V models to its TDK-Lambda ZWS300BAF series of high reliability power supplies.  Operating from a universal input of 85 to 265Vac, the ZWS300BAF features a 10-year electrolytic capacitor lifetime demanded by manufacturers of industrial, test & measurement, broadcast and communications equipment.

The ZWS300BAF series now comprises of 12V, 15V, 24V, 36V and 48V models, each adjustable by up to +/-10% to accommodate non-standard system voltages.  Standard features include over current and over voltage protection and an optional remote on/off or cover is also available.  Achieving up to 89% efficiency for the 12V and 15V models, the ZWS300BAF has an operating temperature range of -10 to +70oC, allowing 100% load operation in a 40 oC convection cooled environment and 60% load at 70 oC with 1.4m/s airflow.

With active Power Factor Correction that meets IEC61000-3-2, the ZWS300BAF has a 3kVac input to output isolation and meets conducted and radiated EMC conforming to EN55011/EN55022B and FCC-B.  Delivered with TDK-Lambda’s 5 year warranty, the ZWS300BAF is safety certified to UL/CSA/EN60950-1, EN50178 and carries the CE mark to the LV and RoHS Directives.

More information can be obtained at the following TDK-Lambda Americas website,, or by calling 800-LAMBDA-4.  Product availability for the ZWS300BAF series can be found via the link to TDK-Lambda’s distributor network (see “Check Distributor Stock to Buy”) at

Major applications
• Industrial, COTS (Commercial Off The Shelf), test and measurement, broadcast and communications equipment.

Main features and benefits
• Up to 91% efficient (24V output)
• 10-year electrolytic capacitor life
• Five Year Warranty
• Convection and forced air ratings

Major specifications

Model   ZWS300BAF-12 ZWS300BAF-15
Input voltage range  Vac 85 to 265
Nominal output voltage Vdc 12 15
Nominal output current A 25 20 (22 with forced air)
Output power W 300 300 - 330
Efficiency (200Vac Input) % 89
Operating ambient temperature Convection: -10°C to +70°C derating linearly to 40% load from 40°C to 70°C
1.4m/s Airflow: -10°C to +70°C, derating linearly to 60% load from 50°C to 70°C
Safety UL/CSA/EN 60950-1, CE Mark (LV & RoHS Directives)
Size (W x H x D) mm 84 x 42 x 180
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.

For more details, please pay a visit to

Contacts for regional media
Region Contact 
TDK-Lambda Americas
David Norton
Phone (619) 575 4400

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