B78417A2287A003

Current Sense Transformers Overview

The B78417A2287A003 is a surface-mount current transformer from the TDK EPCOS B78417A series, designed for power electronics applications. It utilizes an EP7 ferrite core and operates within a frequency range of 50 kHz to 500 kHz. The component features a high voltage test rating of 2400 V AC at 50 Hz for one second between windings. It is certified under AEC-Q200 standards, indicating suitability for automotive environments.

Current Sense Transformers Feature Summary

• Compact surface-mount design utilizing EP7 ferrite core technology
• Certified to AEC-Q200 automotive qualification standards
• High dielectric strength with 2400 V AC isolation testing capability

Current Sense Transformers Applications

• Automotive power electronics systems
• Current sensing in electric vehicle drives
• Industrial power conversion circuits

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix against official TDK documentation to ensure correct configuration. Confirm that the EP7 core variant matches the intended frequency and current requirements. Check for any recent product lifecycle notifications or obsolescence warnings directly from the manufacturer before finalizing procurement plans.

Current Sense Transformers Selection Notes

Select this component based on its AEC-Q200 certification for automotive reliability and its specific EP7 core characteristics. Ensure the operating frequency falls within the 50-500 kHz range. Validate that the physical dimensions of the SMT package fit the target PCB layout constraints.

Current Sense Transformers Part Context

This part belongs to the B78417A series of SMT current transformers introduced by TDK (formerly EPCOS). These components are engineered for compact power electronic designs, offering integrated current sensing solutions that replace bulkier through-hole alternatives while maintaining high performance in demanding environments.

Current Sense Transformers Replacement Considerations

Consult official TDK cross-reference lists for verified substitutes. Do not assume functional equivalence with other B78417 variants without verifying core material and electrical parameters.