TDK磁芯材料表.pdf
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• All specifications are subject to change without notice.
Ferrite for Switching Power Supplies
INTRODUCTION
Our foremost mission is to develop unique and advanced electron-
ics technologies. As such, ever since TDK was founded in 1935
when its researchers invented ferrite, we have been involved in a
wide range of technological and product development efforts.
Particularly, our high-performance ferrite elements, which result
from our accumulated expertise and excellent microstructure con-
trol technologies, have become essential in reducing the weight
and improving the performance of advanced electronic devices
that are transforming the world around us.
As a result of pursuing the numerous potentials of these ferrite ele-
ments, we have been able to develop high-frequency power ferrite
material that deliver among the world’s highest levels of reliability
and magnetic properties. These products include PC33, PC40,
PC44, PC45, PC46, PC47, and PC50. They contribute to achiev-
ing even greater size reductions and performance improvements
of high-performance switching power supplies and DC to DC con-
verters -- products considered to constitute the heart of microelec-
tronic devices. We have also developed the PC95, which delivers
a saturated magnetic flux density equivalent to that of PC44 and
low loss in a wide temperature range. This materials is expected to
improve the efficiency of power supplies in DC to DC converters
used in electric vehicles.
Additionally, we have been conducting research in ferrite that
delivers permeability close to the theoretical limit in high frequency
ranges. These ferrite materials are designed for EMC solutions.
The materials HS52, HS72, and HS10 deliver frequency
responses with excellent permeability - a prerequisite for EMC
magnetic material such as EMI filters and common mode choke
coils - and higher impedance compared to existing material in the
high frequency ranges.
In parallel with material development, we have been working to
reduce sizes and improve the performance of our switching power
supplies and DC to DC converters. To this end, we have been
developing optimum core shape designs and creating an extensive
line up of these products to accommodate a wide range of specific
needs. We also manufacture peripheral items including bobbins
and various accessories.
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