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New Vishay Intertechnology Wireless Charging Receiving Coil Delivers High Efficiency for 10 W Applications
MALVERN, Pa. — Sept. 16, 2014 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced a new powdered-iron-based, WPC-compliant (Wireless Power Consortium) wireless charging receiving coil designed for 10 W applications. Offering a durable construction and high permeability shielding, the new Vishay Dale IWAS-4832FE-50 provides high efficiency greater than 70 % for wireless charging up to 10 W for portable electronics, including tablets, notebook computers, and handheld medical equipment.
The IWAS-4832FE-50’s high-saturation powdered iron is not affected by permanent locating magnets, and the device blocks charging flux from sensitive components and batteries. As an alternative to ferrite based solutions − which can saturate in the presence of a strong magnetic field − the IWAS-4832FE-50 offers a magnetic saturation of < 50 % at 4000 gauss.
The RoHS-compliant device features inductance of 15 µH at 200 kHz with a ± 5 % inductance tolerance, DCR of 255 mΩ at + 25 °C, and Q of 60 minimum at 200 kHz. The IWAS-4832FE-50’s rated current of 2 A enables 10 W of charge at 5 V. The receiving coil features a lead length of 50 mm and tinned length of 10 mm.
Vishay Intertechnology, Inc., a Fortune 1000 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 www.vishay.com.