SOURCE: Vishay Intertechnology, Inc.

Vishay Intertechnology, Inc.

October 31, 2013 11:00 ET

Vishay Intertechnology Introduces New Powdered-Iron-Based, WPC-Compliant Rx Coil for 7 V Charging Circuitry

New Wireless Charging Receiving Coil Works With or Without Alignment Magnet, Offers High Permeability Shielding and Efficiency Greater Than 75 %

MALVERN, PA--(Marketwired - Oct 31, 2013) - Vishay Intertechnology, Inc. (NYSE: VSH) today announced a new powdered-iron-based, WPC-compliant (Wireless Power Consortium) wireless charging receiving coil optimized for use with or without an alignment magnet. Offering a durable construction and high permeability shielding, the new IWAS-4832EC-50 provides high efficiency greater than 75 % for the wireless charging of 7 V portable electronics.

The Vishay Dale Rx coil released today has been designed into a leading wireless power development kit. For higher-voltage wireless power base stations and receivers, the IWAS-4832EC-50's high-saturation powdered iron is not affected by permanent locating magnets, and the device blocks charging flux from sensitive components or batteries.

As an alternative to ferrite-based solutions, which can saturate in the presence of a strong magnetic field, the IWAS-4832EC-50 has magnetic saturation of 50 % of inductance at 4000 gauss. The RoHS-compliant device features inductance of 16.2 microhenries at 200 kHz with a 5 % inductance tolerance, DCR of 366 milliohms at + 25 °C, and Q of 30 min. at 200 kHz. The device features a lead length of 50 mm and tinned length of 10 mm.

Samples and production quantities of the IWAS-4832EC-50 Rx coil are available now, with lead times of stock to six weeks.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at

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Link to datasheet: (IWAS-4832EC-50)

Link to product photo: