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The B78417A2185A003 device is based on an EP7 ferrite core and measures 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. The B78419A2251A003 part 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 offer a turn ratio of 1:100 and are suitable for a wide temperature range from -40 to +150 °C. The test voltage between the primary and secondary sides is 2800 V DC. The creepage and clearance distances meet the requirements for basic insulation according to IEC 60664. The new transformers are qualified to AEC-Q200.
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