Bourns recommends a symmetrical layout with a central pad for the inductor, and a minimum of 2 oz copper thickness for optimal thermal performance. A recommended land pattern is available in the Bourns application note AN-13.
While the datasheet only provides inductance and Q values up to 1 MHz, the 4609X-101-472LF can be used in high-frequency applications. However, it's essential to consider the inductor's self-resonant frequency (SRF) and the potential for resonance. Consult with Bourns' application engineers for customized guidance.
The datasheet specifies a rated current of 4.7 A, but the maximum allowable current depends on the operating temperature and PCB design. As a general guideline, the inductor can handle up to 6 A with a 50°C temperature rise. However, it's recommended to consult with Bourns' application engineers for specific guidance on current handling.
The inductor is rated for operation up to 125°C, but the temperature coefficient of inductance (TCIL) may affect performance. For high-temperature applications, consider using Bourns' high-reliability inductors, such as the 4609X-101-472LF-HR, which is designed for extreme environments.
The inductor is designed to withstand moderate vibration levels. However, for high-vibration applications, consider using Bourns' vibration-resistant inductors, such as the 4609X-101-472LF-V, which features a specialized design for ruggedized environments.
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