Coilcraft recommends a land pattern with a minimum pad size of 2.5 mm x 1.5 mm and a non-solder mask defined (NSMD) pad shape to ensure reliable soldering and minimize thermal resistance.
While the WA8478-BEC is rated for operation up to 125°C, it's essential to consider the derating curves and temperature coefficients to ensure the inductor's performance and reliability in high-temperature applications.
To minimize magnetic interference and ensure proper shielding, it's recommended to use a shielded layout, keep the inductor away from sensitive components, and consider using a mu-metal shield or a ferrite bead in the circuit design.
The SRF of the WA8478-BEC is not explicitly stated in the datasheet, but it can be estimated using the inductor's inductance and capacitance values. Typically, the SRF is around 100-200 MHz for this inductor.
While the WA8478-BEC is rated for a maximum current of 2.8 A, it's crucial to consider the inductor's DC resistance, core losses, and thermal limitations to ensure reliable operation in high-current applications.
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WA8478-BEC Overview
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About COILCRAFT
Colicraft designs and manufactures high performing magnectic components, RF chip inductors, power magnectics, and filters. Coilcraft has engineering, manufacturing, and distribution facilities in North America, Asia, and Europe.
