A symmetrical layout with a ground plane underneath the inductor is recommended to minimize radiation and ensure optimal performance. Keep the PCB traces short and wide to reduce parasitic inductance and resistance.
The RCH855NP-470K has a maximum operating temperature of 125°C. Ensure good airflow around the inductor, and consider using a thermal pad or heat sink if the ambient temperature exceeds 85°C. Follow the recommended derating curve for temperature-dependent current ratings.
The SRF of the RCH855NP-470K is not explicitly stated in the datasheet, but it can be estimated using the inductance value and the Q factor. A rough estimate would be around 100-150 MHz. However, it's recommended to consult with Sumida Corporation or perform your own measurements for accurate SRF determination.
While the RCH855NP-470K is suitable for high-frequency applications, its performance may degrade above 10 MHz due to core losses and skin effect. Consider using a high-frequency optimized inductor or consulting with Sumida Corporation for specific application guidance.
The RCH855NP-470K has an MSL rating of 1, which means it can withstand normal humidity levels without special handling or storage precautions. However, it's still recommended to follow standard moisture protection procedures during assembly and storage.
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RCH855NP-470K Overview
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