Vishay – New IWTX-4646BE-50 Wireless Charging Transmitter Coil
Vishay Intertechnology, Inc. (NYSE: VSH) announces a new powdered-iron-based, WPC-compliant (Wireless Power Consortium) wireless charging transmitter coil for Qi wireless charging pads.
- Designed for use in conjunction with Vishay’s WPC-compliant wireless receiver coils
- Provides an alternative to larger Ferrite-based solutions, which can saturate in the presence of a strong magnetic field AEC-Q200 certification is pending.
Product Benefits:
- Powdered iron based
- Not affected by permanent locating magnets
- Durable construction
- High permeability shielding
- Provides high efficiency greater than 70 % at a 19 V input voltage
- When tested using WPC-compliant transmitter and receiver chipsets and an IWAS-4832FF-50 receiver coil with 2.7 mm spacing
- Blocks charging flux from sensitive components or batteries
- Magnetic saturation of 50 % at 4000 gauss
- AEC-Q200 automotive certification to be complete in Q1 2015
Applications:
- WPC compatible and Qi wireless charging pads
Key Device Specifications:
- Efficiency > 70 %
- 50 % magnetic saturation at 4000 gauss
- 24 μH inductance at 200 kHz
- ± 5 % inductance tolerance
- DCR of 71 mΩ (± 10 %) at +25 ºC
- Q of 185 typical at 200 kHz
- 40 mm lead length
- 50 mm tinned length of 5 mm
- 6 A heat rated current
- 20 A saturation current
- 7 MHz self resonant frequency
