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Home TECH ROOM Power Electronics

Vishay Unveiled two new IHDM edge-wound, through-hole inductors in the 1107 case

Editorial by Editorial
July 26, 2022
in Power Electronics, Product News
Reading Time: 2 mins read
IHDM
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MALVERN, Pa. — Vishay Intertechnology has introduced two new IHDM edge-wound, through-hole inductors in the 1107 case for commercial applications with soft saturation current to 422 A. Featuring a powdered iron alloy core technology, the Vishay Custom Magnetics IHDM-1107BBEV-20 and IHDM-1107BBEV-30 provide stable inductance and saturation over a demanding operating temperature range from -55 °C to +180 °C with low power losses and excellent heat dissipation.

The edge-wound coil provides low DCR down to 0.25 mΩ, which minimizes losses and improves rated current performance for increased efficiency. Compared to competing ferrite-based solutions, the IHDM-1107BBEV-20 and IHDM-1107BBEV-30 offer 30 % higher rated current and 30 % higher soft saturation current levels that are stable at continuous operating temperatures to +180°C. The inductors’ soft saturation provides a predictable inductance decrease with increasing current, independent of temperature.

With an operating voltage up to 350 V, the devices are ideal for DC/DC converters, inverters, differential mode chokes, and filters for motor and switching noise suppression in high current, high temperature applications, including industrial, medical, and military systems. The inductors are available with a selection of two core materials for optimized performance depending on the application.

Standard terminals for the IHDM-1107BBEV-20 and IHDM-1107BBEV-30 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 numberIHDM-1107BBEV-20IHDM-1107BBEV-30
Inductance (µH)0.47 to 7.50.68 to 12.0
DCR typ. (mΩ)0.25 to 2.17
DCR max. (mΩ)0.30 to 2.60
Heat rating current typ. (A)(1)31 to 12835 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 21721 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 new inductors are available now, with lead times of 12 weeks. Pricing for U.S. delivery only is $4.00 per piece in 1,000-piece quantities.

Tags: IHDM edge-woundpassive electronic componentssemiconductorsThe DNA of techVISHAYVishay Green.
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