Bourns recommends a symmetrical layout with a central pad for the inductor, and a minimum of 2 oz copper thickness for optimal thermal performance and reduced electromagnetic interference (EMI). A recommended land pattern is available in the Bourns application note AN-13.
The 4605X-101-472LF is designed to handle high-frequency switching up to 1 MHz. However, it's essential to consider the skin effect, proximity effect, and core losses when operating at high frequencies. Bourns recommends consulting the application note AN-14 for guidance on high-frequency design considerations.
While the datasheet specifies a rated current of 4.7 A, the maximum allowable current depends on the operating temperature and PCB design. As a general guideline, Bourns recommends derating the current by 20% for every 10°C increase above 40°C ambient temperature.
The 4605X-101-472LF is rated for operation up to 125°C. However, it's essential to consider the temperature coefficient of inductance (TCIL) and the potential for thermal runaway. Bourns recommends consulting the application note AN-15 for guidance on high-temperature design considerations.
Bourns recommends storing the inductors in their original packaging, away from direct sunlight and moisture. Avoid bending, flexing, or subjecting the inductors to mechanical stress, as this can cause damage to the internal windings or core.
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