Announcing MID-LLCEPC: A New Transformer Package for LLC Applications

Wurth Electronics Midcom is proud to introduce a new, one-of-a-kind transformer package for LLC applications: MID-LLCEPC.

This innovative series of offline transformers uses LLC resonant half-bridge topology. Thanks to the low switching losses of this topology, MID-LLCEPC yields excellent efficiency, making it perfect for higher power levels.

Read on to learn more about this exciting new transformer package from Wurth Electronics Midcom, including how to acquire free samples for your design!

Product Overview

The new MID-LLCEPC transformer package was designed with an innovative crimp terminal, which “allows for better solder integrity on Litz wire terminations than is traditionally seen in the marketplace,” says Dean Huumala, Product Marketing and Development Manager at Wurth Electronics Midcom.

Using this LLC transformer package eliminates the need for a resonant inductor in the circuit, thereby reducing board space as well.

There are four parts in the series: 750315913, 750315914, 750315915, and 750315916. All four of them are designed to take power from a PFC boost converter at a voltage ranging from 340VDC to 420VDC switching at 70-140kHz.

Developed on the EPC40 package from Wurth Electronics Midcom, the MID-LLCEPC series is capable of power levels up to 400W and complies with IEC60950 reinforced insulation for offline power and IEC61558 basic insulation.

Characteristics of MID-LLCEPC

  • Innovative crimp terminal for better solder integrity
  • Up to 400W output
  • High efficiency
  • Low DC resistance
  • Low EMI
  • Reinforced insulation
  • Isolation voltage: 3900VAC at one second
  • Max LxWxH (mm): 41.91 x 53.98 x 25.40
  • Designed to meet IEC61558-2-16 and EN61558-2-16 (basic insulation)
  • Designed to meet IEC60950-1, EN60950-1, UL60950-1/CSA60950-1 and AS/NZS60950.1 (reinforced insulation)
  • Operating temp: -40°C to 125°C

Applications for MID-LLCEPC

  • LLC resonant converters
  • High-efficiency switch-mode power supplies
  • Display panels
  • Telecom circuits
  • Audio applications

Request Free Samples of MID-LLCEPC

To view the MID-LLCEPC transformer family in our catalog, check out the product spotlight.

We even offer free samples of our new LLC transformer package so you can see how it works before you commit. To do so, add samples to your cart from the product page, or order samples here.