SCT39XV-420-2R4B004JH

Overview

The KEMET SCT39XV-420-2R4B004JH is a single-phase common mode choke from the SCT-XV series, designed for high-voltage automotive and industrial applications. It features an inductance of 119 µH at 100 kHz with a maximum DC resistance of 530 µΩ. The component supports a maximum DC current of 42 A and operates within a temperature range of -40°C to +150°C. Rated for 1000 VAC, it utilizes nanocrystalline metal core technology and meets AEC-Q200 qualification standards for automotive reliability.

Feature Summary

• Utilizes nanocrystalline metal core material for superior magnetic performance and compact size.
• AEC-Q200 qualified for enhanced reliability in demanding automotive environments.
• High thermal stability supporting operation up to +150°C.
• Low DC resistance design minimizes power loss in high-current circuits.

Applications

• On-board chargers for electric and plug-in hybrid vehicles
• Medium power drive systems
• Wireless charging systems operating at 85 kHz
• High voltage automotive EMI filtering

Procurement Notes

Verify the specific part number against official KEMET documentation to ensure accuracy, as datasheet references may vary between 0.119 mH and 0.4 mH listings. Confirm that the nanocrystalline core specification aligns with your design requirements. Ensure the AEC-Q200 certification is valid for your specific application context. Cross-reference the physical dimensions and mounting style with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when high current handling (42 A) and low impedance are critical for efficiency. The nanocrystalline core offers better saturation characteristics compared to traditional ferrite cores. Ensure the system voltage does not exceed the 1000 VAC rating. Consider the through-hole mounting requirement and the specific footprint dimensions during the mechanical design phase.

Part Context

This component belongs to the SCT-XV series of common mode chokes, which are engineered for harsh environment industrial and high-voltage automotive applications. The series is characterized by its use of nanocrystalline materials to achieve high performance in a compact form factor. These chokes are specifically tailored for applications requiring robust EMI suppression in power electronics.

Replacement Considerations

Consult official KEMET substitution guides for verified alternatives. Generic cross-references may not match the nanocrystalline core specifications or AEC-Q200 qualification status required for automotive safety compliance.