High-Power Mn-Zn Ferrite PEL95 Material

Until now, TDK's high-power Mn-Zn ferrites have been mass-produced using PE22 and PC40 materials, but to meet the growing demand for lower power loss and higher efficiency, we have now added the PC95 series to our lineup of high-power Mn-Zn ferrites. Among these, the PEL95 material is particularly well-suited for achieving higher efficiency.
It is characterized by low losses at relatively low temperatures (below 100°C) and is expected to reduce core loss compared to conventional materials, especially in large cores, thereby achieving higher transformer efficiency.
For example, EV rapid charging systems require low heat generation and high-power operation. The transformers used in DC-DC converters for such systems tend to be large, and so to achieve even slight size reductions, cores with minimal losses are essential. PEL95 material is ideal for transformers operating in large-scale, high-power applications.

*PEL95 exhibits low core loss characteristics across a broad temperature range, particularly below 100°C, in large core configurations.
*Since the optimal material varies depending on operating frequency, Bm, and core shape, it is recommended to conduct comparative evaluations among the 3 materials, PC95, PEL95, and PEM95, when considering your choice.

Here is an example of temperature rise evaluation in a large transformer using PEL95 material.
The graph below shows the changes in core temperature over time when driving a large transformer. While competing cores exhibit continuous temperature increases leading to thermal runaway, cores made with PEL95 material stabilize at a consistent temperature after an initial rise.
Ferrite cores made of PEL95 material effectively suppress heat generation in large-scale applications.

TDK's PEL95 material achieves high efficiency and low heat generation in high-power transformers through its low core loss characteristics across a wide temperature range in large cores.
We provide samples in various large-scale shapes. If you are interested, please feel free to contact us.
*The application examples are case studies and can be applied to other applications. We can also accommodate custom shapes not listed in the catalog.