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Vishay Intertechnology IHDM Edge-Wound Inductors Deliver Stable Inductance and Saturation at Temps to +180 °C for Commercial Applications Up to 128 A DC

2022-07-25 | 返回

Featuring Powdered Iron Alloy Core Technology and Soft Saturation, Through-Hole Devices Provide Low DCR to Reduce Power Losses and Increase Efficiency

MALVERN, Pa. — July 25, 2022 — Vishay Intertechnology, Inc. today 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 number	IHDM-1107BBEV-20	IHDM-1107BBEV-30
Inductance (µH)	0.47 to 7.5	0.68 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 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 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.

Source: https://www.vishay.com