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News

New inductors/transformers from Vishay feature noise-minimizing toroidal design

Vishay Electronic : 29 January, 2000  (New Product)
Vishay Intertechnology, Inc, today announced the release of three new series of inductors/transformers in surface-mount, toroidal packages. Offering designers a choice of Kool-Mu, powdered iron, or MPP cores, the new Vishay Dale LPT-3535 series minimizes EMI radiation in dc-to-dc converter, common mode choke, and isolation transformer circuits in a broad range of electronic systems.
Typical applications for the new components will include stand-alone power supplies, automotive, military and aerospace applications, consumer electronics, and test and measurement devices.

With a diameter of 8.93 mm (0.35 inches) and a height profile of 6.35 mm (0.235 inches), the new inductors/transformers offer designers a choice of 14 inductance values from 1 microhenry to 330 microhenrys. DC resistance is as low as 4 milliohms for a 1-microhenry component with a powdered iron core, with maximum current values as high as 6.45 A. Inductance tolerance is specified at 15% for all devices.

'These new inductors/transformers are an excellent choice for high-efficiency dc-to-dc converters in portable products where their compact, toroidal design will save space without compromising EMI/EMF performance,' said Michael Husman, Director, Product Marketing.

Two separate windings on each component allow connections to be made in series or in parallel. Half and quarter-height devices, in addition to custom versions, are available on request from Vishay.

A high-temperature shell design makes the new LPT-3535 series ideal for infrared reflow applications, while pick-and-place-compatible tape-and-reel packaging makes the new components easy to use with high-speed assembly equipment.

Samples and production quantities of the new LPT-3535 inductors are available now, with lead times of eight weeks for larger orders.
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