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TDK Announces EPCOS Current Sense Transformers For Automotive Electronics

Current Sense Transformers For Automotive Electronics | In Compliance Magazine

TDK Corporation announces two new SMT current sense transformers for automotive electronics:

The first type (B78417A285A003) is based on an EP7 ferrite core and has dimensions of only 10.6 mm x 12.2 mm x 11 mm.  It is designed to measure pulse currents of up to 20 A.  The DC resistance is 1.3 mΩ on the primary side and 3.7 Ω on the secondary side.

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The second SMT current sense transformer (B78419A2251A003) contains an EP10 ferrite core and measures 12.8 mm x 13.6 mm x 14.4 mm.  The measurement range of the larger type extends to 30 A.  Its DC resistance is 0.5 mΩ on the primary side and 2.7 Ω on the secondary side.

Both transformers have a turn ratio of 1:100 and are suitable for the wide temperature range from -40 to +150 oC.  The test voltage between the primary and secondary sides is 2800 V DC.  The creepage and clearance distances meet the requirements for basis insulation according to IEC 60664.  The new transformers are qualitied to AEC-Q200. These SMT current sense transformers are designed for use in emerging 48-V automotive power systems as well as for all xEV applications, where the components can be used to measure currents of the electric drives.

To request additional information, visit www.epcos.com/inquiry.

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