Product News: Electrical Equipment & Systems

MID-LLCEPC Offline Transformers minimize switching losses.

Press Release Summary:

MID-LLCEPC Offline Transformers minimize switching losses.

Jul 13, 2017 -

Featuring innovative crimp terminal, MID-LLCEPC Offline Transformers with LLC Resonant Half-Bridge topology are capable of power levels up to 400W. Suitable for LLC resonant converters, high efficiency switch-mode power supplies, display panels and telecom circuits, units are designed to take power from PFC boost converter at 340VDC to 420VDC voltage range with 70-140kHz switching frequency.

Wurth Electronics Midcom Inc. - Watertown, SD

Original Press Release

Wurth Electronics Midcom Introduces New LLC Resonant Half-Bridge Series

Press release date: Jul 12, 2017

Wurth Electronics Midcom is proud to announce the release of MID-LLCEPC; a new series of offline transformers using LLC Resonant Half-Bridge topology. With the low switching losses of the LLC topology, the MID-LLCEPC series yields very good efficiency, which makes the topology attractive with higher power levels.

“Our package used for this series was designed with an innovative crimp terminal, which allows for better solder integrity on Litz wire terminations than is traditionally seen in the market place,” says Dean Huumala, Product Marketing and Development Manager at Wurth Electronics Midcom.

This series, developed on the EPC40 package from Wurth Electronics Midcom, is capable of power levels up to 400W. All four of the parts in the series are designed to take power from a PFC boost converter at a voltage ranging from 340VDC to 420VDC switching at 70-140kHz. These new EPC-style offline LLC transformers are best suited for LLC resonant converters, high efficiency switch-mode power supplies, display panels, telecom circuits, and audio applications.

To review the transformer family, visit

Free samples can be requested at

About Wurth Electronics Midcom, Inc.

Wurth Electronics Midcom is a global leader in the design and manufacture of custom magnetics. A standard line of magnetics is offered, including inductors, ferrites, chokes, and EMI shielding materials. Recently, the electromechanical and interconnect line was added to the product offering, which includes Board-to-Board, Wire-to-Board, Terminal Blocks, and Input/Output Communication.

Customers in Asia, Europe and the Americas are supported through a local direct technical sales network, regional design and applications engineers and manufacturing based in the People’s Republic of China.

Our standard lines and custom-made transformers are used around the world in LED lighting, smart grid and utility metering, industrial controls, telecom (CPE and CO), home automation, and home appliances.

Wurth Electronics Midcom offers all catalog products in stock. Free samples are offered to customers on connectors and both catalog and custom magnetics.

Further information at

Further information:

 Lindsey Esche

Wurth Electronics Midcom, Inc.

121 Airport Drive PO Box 1330

Watertown, SD 57201 USA

Phone: +1 605 886 4385

Toll-free (in the U.S.):

Phone: +1 800 643 2661