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TDK Presents Compact SMT Transformers for DC/DC Converters

TDK Corporation has introduced the EPCOS E10 EM series, a new range of insulated SMT transformers that are suitable for various DC/DC converter topologies and gate driver circuits in e-mobility and industrial electronics.

TDKThere are four models in the series, with basic winding insulation of a working voltage of 500 VRMS and reinforced insulation of 300 VRMS. The turn’s ratio is between 1:0.76 and 4:1, depending on the model.

Measuring just 11.7 x 13.15 x 11.35 mm3, they are extremely compact. The compact design meets clearance and creepage requirements under the IEC 60664-1 standard (Np/Ns: min. 5.5 mm clearance, min. 6 mm creepage), due to the internal construction of the transformers.

Outstanding reproducibility and reliability are ensured thanks to highly automated production with an AOI final inspection. The components in the new EPCOS transformer series B78307A*A003 is qualified under AEC-Q200 Rev. D.

Main fields of application

  • DC/DC converters and gate driver circuits in e-mobility and industrial electronics

Main features and benefits

  • Compact dimensions of just 11.7 x 13.15 x 11.35 mm3
  • Compliance with the IEC 60664-1 standard about clearance and creepage
  • Qualified under AEC-Q200 Rev. D


Aishwarya Saxena

A book geek, with creative mind, an electronics degree, and zealous for writing.Creativity is the one thing in her opinion which drove her to enter into editing field. Allured towards south Indian cuisine and culture, love to discover new cultures and their customs. Relishes in discovering new music genres.

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