Automotive Grade Inductor Rated for +180°C, 300V and 150 Amps
Vishay Intertechnology, Inc. has introduced a new IHDM Automotive Grade edge-wound, through-hole inductor with rated current up to 150A for under the hood applications. Featuring powdered iron alloy core technology, the Vishay Custom Magnetics IHDM-1008BC-3A provides stable inductance and saturation over a demanding operating temperature range from -40°C to +180°C with low power losses and excellent heat dissipation.
With an operating voltage up to 350V, the device is designed for high current, high temperature power applications, including dc-dc converters, inverters, and filters for motor and switching noise suppression in hybrid, full-electric, and hydrogen fuel cell vehicles.
The edge-wound coil of the device released today provides low DCR down to 0.25mΩ, which minimizes losses and improves rated current performance for increased efficiency. Compared to competing ferrite-based solutions, the IHDM-1008BC-3A offers 30% higher rated current and 30% higher saturation current levels at +125°C and above.
The inductor’s soft saturation provides a predictable inductance decrease with increasing current, with stable inductance across the operating temperature range.
The IHDM-1008BC-3A’s standard through-hole mounting terminals are stripped and hot-dip tinned to reduce the risk of tin whisker growth, but Vishay can customize the device’s mounting method, and performance, upon request. Options include bare copper, surface-mount, and press fit. The device is RoHS-compliant, halogen-free, and Vishay Green.
Device Specification Summary:
- Case size: 1008
- Dimensions (mm): 25 x 20 x 23
- Inductance (µH): 1.2 to 4.7
- DCR typ. (mΩ): 0.25 to 0.86
- DCR max. (mΩ): 0.30 to 0.95
- Heat rating current (A): 45 to 80
- Saturation current (A): 50 to 110(1) / 70 to 150(2)
- SRF typ. (MHz) 15 to 90
(1) DC current (A) that will cause L0 to drop approximately 20%
(2) DC current (A) that will cause L0 to drop approximately 30%
