Automotive-grade IHDM inductors offer stable inductance and saturation

Vishay Intertechnology, Inc. has released two new IHDM automotive-grade edge-wound, through-hole inductors in the 1107 case size with a soft saturation current to 422A. Featuring a powdered iron alloy core technology, the Vishay Inductors Division's IHDM-1107BBEV-2A and IHDM-1107BBEV-3A provide stable inductance and saturation over a demanding operating temperature range from -40C to +180C with low power losses and outstanding heat dissipation.

The edge-wound coil of the devices provides low DCR down to 0.22mΩ, which minimises losses and improves rated current performance for increased efficiency. Compared to competing ferrite-based solutions, the devices offer 30% higher rated current and 30% higher saturation current levels at +125C. The inductors' soft saturation delivers a predictable inductance reduction with increasing current, independent of temperature.

With a high isolation voltage rating up to 350V, the AEC-Q200 qualified devices are excellent for high current, high temperature power applications, including DC-DC converters, inverters, OBC, DCU, and filters for motor and switching noise suppression in ICE, HEV, and full-EV vehicles. The inductors are offered with a selection of two core materials for optimised performance depending on the application.

Standard terminals for the IHDM-1107BBEV-2A and IHDM-1107BBEV-3A are stripped and tinned for through-hole mounting. The company can customise the devices' performance – including inductance, DCR, rated current, and voltage rating – upon request. Customisable mounting options include bare copper, surface-mount, and press fit. To lower the risk of whisker growth, the inductors feature a hot-dipped tin plating. The devices are RoHS-compliant, halogen-free, and Vishay Green.