Bourns provides a recommended PCB layout and land pattern in their application notes. It's essential to follow these guidelines to ensure proper thermal management, minimize electromagnetic interference, and optimize signal integrity.
To minimize electromagnetic interference, keep the inductor at least 5 mm away from sensitive components, and orient the inductor to minimize the magnetic field's impact on nearby components. You can also use shielding or mu-metal to contain the magnetic field.
While the datasheet specifies the maximum rated voltage, it's essential to consider the voltage stress during transient events, such as inrush current or voltage spikes. Bourns recommends derating the voltage by 10-20% to ensure reliable operation.
The self-resonant frequency can be calculated using the inductor's inductance and capacitance values. You can use online calculators or consult with Bourns' application engineers to determine the self-resonant frequency and its potential impact on your design.
The inductor's thermal resistance and maximum operating temperature must be considered to prevent overheating. Ensure good airflow, use thermal interfaces or heat sinks if necessary, and follow Bourns' guidelines for thermal management.
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