Powerelectronics 4082 036094 Vishay Intertechnology

Wireless Charging Transmitter Coil for Qi Wireless Charging Pads

June 3, 2016
Vishay Intertechnology has introduced a new AEC-Q200-qualified, powdered-iron-based, WPC-compliant wireless charging A10 type transmitter coil.

Vishay Intertechnology has introduced a new AEC-Q200-qualified, powdered-iron-based, WPC-compliant (Wireless Power Consortium) wireless charging A10 type transmitter coil.

Offering a durable construction and high permeability shielding, the new Vishay Dale IWTX-47R0BE-11 is 18 % smaller than previous-generation solutions to save space in Qi wireless charging pads, while providing high efficiency greater than 80 % when paired with a Vishay Rx coil and appropriate Qi-compatible Rx and Tx circuitry. The IWTX-47R0BE-11 is suitable for use in WPC-compatible Tx circuits operating with 19 V input for up to 10 W wireless charging applications.

Designed for use in conjunction with Vishay's WPC-compliant wireless receiver coils, the IWTX-47R0BE-11's high-saturation powdered iron is not affected by permanent locating magnets. As an alternative to larger ferrite-based solutions - which can saturate in the presence of a strong magnetic field - the IWTX-47R0BE-11 offers a magnetic saturation of 50 % at 4,000 gauss.

The RoHS-compliant device features inductance of 24 µH at 200 kHz with a +5 % / -10 % inductance tolerance, DCR of 71 mW (± 10 %) at + 25 °C, and Q of 200 typical at 200 kHz. The transmitter coil features a lead length of 40 mm and tinned length of 5 mm, and self-resonant frequency of 7 MHz.

Samples and production quantities of the IWTX-47R0BE-11 Tx coil are available now, with lead times of 14 weeks for large orders. Pricing for U.S. delivery only is $3.75 per piece in 1,000-piece quantities. 

Sponsored Recommendations

Near- and Far-Field Measurements

April 16, 2024
In this comprehensive application note, we delve into the methods of measuring the transmission (or reception) pattern, a key determinant of antenna gain, using a vector network...

DigiKey Factory Tomorrow Season 3: Sustainable Manufacturing

April 16, 2024
Industry 4.0 is helping manufacturers develop and integrate technologies such as AI, edge computing and connectivity for the factories of tomorrow. Learn more at DigiKey today...

Connectivity – The Backbone of Sustainable Automation

April 16, 2024
Advanced interfaces for signals, data, and electrical power are essential. They help save resources and costs when networking production equipment.

Empowered by Cutting-Edge Automation Technology: The Sustainable Journey

April 16, 2024
Advanced automation is key to efficient production and is a powerful tool for optimizing infrastructure and processes in terms of sustainability.


To join the conversation, and become an exclusive member of Electronic Design, create an account today!