Bourns provides a recommended land pattern and PCB layout in their application notes and design guides. It's essential to follow these guidelines to ensure proper thermal management, reduce electromagnetic interference (EMI), and optimize the component's performance.
To minimize electromagnetic interference (EMI), keep the inductor at least 5 mm away from sensitive components, such as oscillators, antennas, or other inductors. You can also use shielding techniques, like copper tape or mu-metal, to contain the magnetic field.
While the datasheet specifies a maximum voltage rating, it's essential to derate the voltage based on the application's requirements. As a general rule, derate the voltage by 10-20% to ensure reliable operation and prevent premature failure.
The SRF is typically not specified in the datasheet, but it can be estimated using the inductor's inductance and capacitance values. You can use online calculators or consult with Bourns' application engineers to determine the SRF and its potential impact on your design.
The PWR220T-20-47R0F has a maximum operating temperature of 125°C. Ensure good airflow around the component, and consider using thermal interfaces or heat sinks to dissipate heat. You can also use thermal simulation tools to optimize your design.
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PWR220T-20-47R0F Overview
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