Vishay Intertechnology has added four devices to its IHXL series of radial through-hole inductors, featuring a new iron alloy core material that reduces core losses by 20% over the previous generation while reducing temperature rise. Two variants are AEC-Q-qualified automotive-grade (IHXL1500VZ-3A and IHXL-2000VZ-3A); and two are commercial-grade (IHXL1500VZ-31 and IHXL-2000VZ-31). All four are available at lower prices than the previous-generation IHXL devices.
Applications include DC-link filters and input filters in battery charging systems, DC-DC converters, BLDC motor drives, and differential mode and boost PFC chokes in automotive, industrial, solar and wind power equipment.
The devices cover rated currents from 55 A to 209 A across two case sizes—the 1500 (38.1 × 38.1 × 21.89 mm) and the larger 2000 (50.8 × 50.8 × 21.7 mm)—with inductance up to 10 µH and a maximum operating temperature of +155° C.
Vishay says the pressed powdered iron construction gives the body a magnetically shielded structure that contains stray flux, reducing coupling to nearby components and improving EMC compared to wirewound designs with exposed coils. Low internal thermal resistance helps limit hotspots, and a flat top surface accommodates an external heat sink.
The core uses a soft-saturation material that’s designed to keep inductance stable during high transient current spikes, rather than hard-saturating—an important factor in switching converter applications where load swings can be sharp.
Source: Vishay Intertechnology
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