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Vishay unveils AEC-Q200-Qualified Wireless Charging Transmitter Coil

Vishay unveils AEC Q200 Qualified Wireless Charging

Vishay Intertechnology unveils 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 known to be:

  • 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.

Additionally, The RoHS-compliant device features inductance of 24 µH at 200 kHz with a +5 % / -10 % inductance tolerance, DCR of 71 mΩ (± 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 exclusively obtainable, with lead times of 14 weeks for large orders.


BiS Team

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