Current-Sensing Transformers have lead-free construction.

Press Release Summary:

Available with turn ratios of 30, 40, 50, 70, and 125, LPE-3325-CST series surface-mount, current-sensing transformers provide optimal performance at frequencies of 100 kHz and greater. It features secondary inductance range of 180-3,000 µH at 100 kHz and 0.1 V and maximum secondary resistance range of 1.00-7.70 ohms. All 5 configurations are rated for 6 A. Transformers measure 0.265 x 0.323 x 0.205 in.

Original Press Release:

Vishay's New Surface-Mount, Current-Sensing Transformers Offer Versatile, Lead-Free Construction and Five Standard Turns Ratios From 30 to 125

MALVERN, PENNSYLVANIA - July 31, 2003 - Vishay Intertechnology, Inc. (NYSE: VSH) today announced the release of the new LPE-3325-CST series of surface-mount, current-sensing transformers featuring five standard turns ratios from 30 to 125 in a lead (Pb)-free construction.

Designed to provide optimal performance at frequencies of 100 kHz and greater, the new LPE-3325-CST is intended for switching power supplies, ac current detection, and output supplies for control circuitry in household appliances and medical and office equipment.

Available with turns ratios of 30, 40, 50, 70, and 125, the transformer released today by Vishay Dale features secondary inductance ranging from 180 µH to 3000 µH at 100 kHz and 0.1 V and a maximum secondary resistance range of 1.00 Ù to 7.70 Ù. All five configurations are rated for 6 A.

Each transformer measures 0.265 in. by 0.323 in. [6.73 mm by 8.20 mm], with a 0.205-in. [5.21-mm] height profile. Custom configurations are available on request. The new devices are specified for an operating temperature range of -40°C to +130°C and are compatible with surface-mount process temperatures.

Samples and production quantities of LPE-3325-CST current-sensing transformers are available now. Lead-time for production quantities is 8 to 10 weeks. Pricing for U.S. delivery in 1,000-piece quantities is $1.00.

Vishay, a Fortune 1,000 Company listed on the NYSE, is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, optoelectronics, and selected ICs) and passive electronic components (resistors, capacitors, inductors, and transducers). The Company's components can be found in products manufactured in a very broad range of industries worldwide. Vishay is headquartered in Malvern, Pennsylvania, and has plants in sixteen countries employing over 25,000 people. Vishay can be found on the Internet at


Doug Lillie
Vishay Intertechnology, Inc.
1505 East Highway 50
P. O. Box 180
Yankton, South Dakota 57078
Tel: 1 605-665-9301
Fax: 1 605-665-1627

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