Insulated transformers for DC/DC converters
and gate drive circuits

TDK offers a new range of E10 EM insulated SMT transformers that are suitable for various DC/DC converter topologies and gate driver circuits in e-mobility and industrial electronics. These EPCOS B78307A*A003 transformer devices are qualified in accordance with AEC-Q200 Rev. D.

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

There are four models in the series, with basic winding insulation of a working voltage of 500 VRMS and reinforced insulation of 300 VRMS. The turns ratio is between 1:0.76 and 4:1, depending on the model. Temperature range from -40°C to +150°C.

Applications: