Vishay Intertechnology, has introduced two new automotive-grade, through-hole inductors—IHDM-1107BBEV-2A and IHDM-1107BBEV-3A—in a compact 1107 case size. Built with powdered iron alloy core technology, these inductors deliver stable inductance and soft saturation up to 422 A across a wide operating temperature range of -40 °C to +180 °C, while offering low power losses and superior heat dissipation.
The edge-wound coil design enables ultra-low DCR—down to 0.22 mΩ—enhancing current handling and overall efficiency. Compared to traditional ferrite-core inductors, these components provide 30% higher rated and saturation current at +125 °C. Their soft saturation characteristics ensure a predictable, temperature-independent performance—making them ideal for high-reliability automotive applications.
With a high isolation voltage rating up to 350 V, the AEC-Q200 qualified devices are ideal for high current, high temperature power applications, including DC/DC converters, inverters, on-board chargers (OBC), domain control units (DCU), and filters for motor and switching noise suppression in internal combustion (ICE), hybrid (HEV), and full-electric (EV) vehicles. The inductors are available with a selection of two core materials for optimized performance depending on the application.
Standard terminals for the IHDM-1107BBEV-2A and IHDM-1107BBEV-3A are stripped and tinned for through-hole mounting. Vishay can customize the devices’ performance — including inductance, DCR, rated current, and voltage rating — upon request. Customizable mounting options include bare copper, surface-mount, and press fit. To reduce the risk of whisker growth, the inductors feature a hot-dipped tin plating. The devices are RoHS-compliant, halogen-free, and Vishay Green.
Device Specification Table:
| Part number | IHDM-1107BBEV-2A | IHDM-1107BBEV-3A |
| Inductance (µH) | 0.47 to 7.5 | 0.68 to 12.0 |
| DCR typ. (mΩ) | 0.22 to 2.11 | |
| DCR max. (mΩ) | 0.27 to 2.20 | |
| Heat rating current typ. (A)(1) | 31 to 128 | 35 to 125 |
| Saturation current typ. (A) | 96 to 343(2) / 118 to 422(3) | 49 to 202(2) / 61 to 248(3) |
| SRF typ. (MHz) | 29 to 217 | 21 to 181 |
(1) DC current (A) that will can an approximate ΔT of 40 °C
(2) DC current (A) that will cause L0 to drop approximately 20 %
(3)DC current (A) that will cause L0 to drop approximately 30 %
Samples and production quantities of the IHDM-1107BBEV-2A and IHDM-1107BBEV-3A are available now, with lead times of 14 weeks.
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