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Automotive current transformer offers 1,800 Vrms isolation

By Michelle Froese | September 30, 2026

Coilcraft has introduced the CSX7045 series of current-sensing transformers for high-performance power electronics and automotive applications.

The series is designed for use in dc-dc converters, motor drives, inverters, and power management circuits, making it relevant to electric vehicle (EV) power electronics where accurate current measurement is required across high-current switching systems.

The CSX7045 provides 1,800 Vrms isolation, turns ratios from 1:50 to 1:250, bandwidth up to 800 kHz, and current sensing above 20 A in a 5.3 mm-profile chip-style package. Its low dc resistance is designed to reduce conduction losses and self-heating in high-current applications.

The series is qualified based on AEC-Q200 Rev E and operates across an ambient temperature range of -40° to 125° C. Coilcraft says the devices are intended for demanding automotive environments.

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Filed Under: Power Electronics, Technology News
Tagged With: coilcraft, powerelectronics, transformer
 

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