Vishay Intertechnology has introduced two new automotive-grade inductors. Both IHDM-1107BBEV-2A and IHDM-1107BBEV-3A come in a 1107 case size with soft saturation current up to 422 A, depending on the model. These are through-hole, edge-wound inductors with a powdered iron alloy core that works reliably from -40 to +180 °C, keeping power losses to a minimum and achieving high thermal efficiency.
The edge-wound coil design helps in reducing DC resistance (DCR) to as low as 0.22 mΩ. When compared to ferrite-based alternatives, the new inductors outperform them by 30% in rated and saturation current at +125 °C. The soft saturation characteristic provides predictable inductance reduction with increasing current, independent of temperature. They are rated for isolation voltages up to 350 V and are also AEC-Q200 qualified. This makes them an ideal fit for demanding automotive uses. Applications include DC/DC converters, inverters, on-board chargers (OBC), domain control units (DCU), and filtering for motor and switching noise in ICE, HEV, and EV systems.
A pick between two core materials is available. The devices also offer customizable electrical and mechanical parameters upon request. The standard version uses stripped and tinned terminals for through-hole mounting, while optional mounting formats include bare copper, surface-mount, and press-fit. A hot-dipped tin finish helps prevent whisker growth. Both IHDM-1107BBEV-2A and IHDM-1107BBEV-3A are RoHS-compliant, halogen-free, and meet Vishay Green standards. Samples and production units are available now, with lead times of 14 weeks.
