ISELIN, N.J., March 01, 2018 (GLOBE NEWSWIRE) -- TDK Corporation today introduced a new series of EPCOS transformers designed for Power over Ethernet (PoE) applications. The powerful new B82806D0060A* series provides an output of up to 60 W, which makes it ideal for PoE++ systems as outlined in the IEEE 802.3bt standard. PoE Systems provide simultaneous transmission of data and power on a single LAN cable.

New series of EPCOS transformers designed for Power over Ethernet (PoE) applications

The B82806D0060A* series comprises four types with different turns ratios for output voltages of 3.3 V, 5 V, 12 V, and 24 V. The SMD components have dimensions of 30 mm x 22 mm x 11.4 mm and are designed for a wide range of operating temperatures from -40 °C to +125 °C. The electrical insulation of the RoHS-compatible transformers complies with UL 1446 class 130 (B) and can withstand a high-voltage test between the primary and secondary sides at 1500 V AC, 50 Hz for one second.

The series features low DC resistance values that – depending on the type – can be as low as 3.5 mΩ. This results in a higher efficiency, thus making the new transformers also suitable for active clamp forward converter topologies. The typical switching frequency is 250 kHz.

An increasing number of devices offer LAN connectivity for communication purposes. The obvious solution therefore is to power them via the LAN cable as well (Power over Ethernet), so that no separate power supplies are necessary. Existing systems with two pairs of cables compliant with IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) are designed for outputs of 15 W and 30 W, respectively. The IEEE 802.3bt (PoE++) standard, which is designed for four pairs of cables, has been developed in order to supply devices with a higher power demand. The new EPCOS transformers are designed specifically for this application segment. Typical applications are video and POS systems, but also include systems such as lighting controllers, fire alarm systems or access systems that are used in building management.

Main applications

• The supply of powerful loads, such as video and POS systems, but also systems used in building management such as lighting controllers, fire alarm systems or access systems.

Main features and benefits

• High output of 60 W
• DC resistance values as low as 35 mΩ

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 passive components, such as ceramic, aluminum electrolytic and film capacitors, ferrites and inductors, high-frequency products, and piezo and protection components, as well as sensors and sensor systems and power supplies. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK's further main product groups include magnetic application products, energy devices, and flash memory application devices. TDK focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer 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 2017, TDK posted total sales of USD 10.5 billion and employed about 100,000 people worldwide.

You can download this text and associated images from www.epcos.com/pressreleases.

You can find further information on the products at www.epcos.com/transformers.

Please forward reader inquiries to marketing.communications@epcos.com.

Contacts:
Debbie Martin
Marketing Communications Manager
EPCOS Inc.
480-836-4104

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