Vishay’s new IHXL inductors for battery charging boast lower core losses, lower heat generation and lower prices

Vishay Intertechnology has expanded its IHXL series of radial through-hole inductors with four new models that incorporate an advanced iron alloy core material. This innovation reduces core losses by 20% compared to previous versions, resulting in lower heat generation during operation. The new inductors are available in both automotive-grade, AEC-Q-qualified variants and commercial-grade options, all offered at reduced prices relative to their predecessors. Designed for demanding applications such as battery charging systems, DC-DC converters, and BLDC motor drives, these inductors support rated currents ranging from 55 A to 209 A. They come in two case sizes—1500 and 2000—with inductance values up to 10 µH and can operate at temperatures up to +155°C. Their pressed powdered iron construction provides a magnetically shielded body that minimises stray flux, enhancing electromagnetic compatibility compared to traditional wirewound designs with exposed coils. A key technical feature of the new IHXL inductors is the use of a soft-saturation core material, which helps maintain stable inductance during transient current spikes common in switching converter environments. This characteristic is crucial for applications experiencing rapid load changes, as it prevents the sharp inductance drop-offs seen with hard-saturating cores. Additionally, the low internal thermal resistance and flat top surface facilitate effective heat dissipation, including compatibility with external heat sinks to further manage temperature. These enhancements position Vishay’s latest IHXL inductors as a competitive choice for automotive, industrial, and renewable energy sectors, where efficiency, reliability, and cost-effectiveness are paramount. By addressing core losses, thermal management, and electromagnetic interference, the new devices support the evolving needs of electric vehicle charging infrastructure and power electronics. The availability of both automotive and commercial grades broadens their applicability across a range of high-performance systems.