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Publication Date: 12/1/2009
Archive >  December 2009 Issue >  New Products > 

Pulse Adds Low-Loss SMT Power Inductors
Compact inductors.
San Diego, CA — Pulse, a Technitrol Company, is introducing its PG0871NL and PG0702NL series of round-wire coil surface mount power inductors. These inductors use a ferrite core material which yields a 90 percent core loss reduction and 30 percent increase in maximum operating temperature when compared to standard iron powder material used in flat-coil inductors.

Because ferrite material is immune to thermal aging, these inductors are more reliable and better performing at higher temperatures and frequencies than non-ferrite core inductors. In addition, using round wire instead of a flat coil results in a 25 percent cost reduction.

The PG0871NL has a low DC current resistance of 1.5 to 31.5 milliOhms (mΩ) with a tight tolerance of ±8 percent and operates up to 130°C without any thermal aging concerns. Inductance values range from 0.46 to 10.5µH and saturation current from 6.3 to 28 Amp. The mechanical size is 7.6 x 7.4 x 6.4mm.

The PG0702NL has a low DC resistance of 0.68mΩto 7.7mΩ with a tight tolerance of ±6 percent, and like the PG0871NL, operates up to 130°C without any thermal aging concerns. Inductance values range from 0.30µH to 6.8µH with saturation current from 8.5 to 42A. The mechanical size is 10.8 x 9.2 x 8mm.

The inductors have operating temperature ranges from -40 to +130°C, and are used as energy storage devices and filters in point-of-load (POL), telecom, datacom, server, and industrial DC-to-DC applications. They are a lower cost alternative to flat coil inductors for applications where very low profile is not a requirement.

The inductors have a three-pin design for improved mechanical stability. An unconnected third pin at the back of the inductor distributes the part's weight and balances the three terminals during mechanical vibration. Flattened leads serve as the pad, making the coil self-leaded. No additional base is required, further minimizing the cost.

Contact: Pulse Engineering, 12220 World Trade Drive, San Diego, CA 92128 858-674-8100 fax: 858-674-8262 E-mail: Web:

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