Bourns provides a recommended PCB layout and land pattern in their application notes and design guides. It's essential to follow these guidelines to ensure proper thermal management, minimize parasitic inductance, and optimize signal integrity.
To minimize electromagnetic interference (EMI), keep the inductor at least 5 mm away from sensitive components. You can also use shielding techniques, such as copper pours or EMI shields, to contain the magnetic field.
While the datasheet specifies a maximum rated current, it's essential to consider the voltage across the inductor as well. As a general rule, keep the voltage across the inductor below 1.5 times the maximum rated voltage to prevent saturation and ensure reliable operation.
The SRF is typically above the operating frequency range, but it's crucial to consider it in your design. Use impedance analysis tools or simulation software to model the inductor's behavior and ensure it doesn't resonate at the SRF, which can cause unwanted oscillations.
The 3269X-1-202GLF has a maximum operating temperature of 125°C. Ensure good airflow, use thermal interfaces or heat sinks if necessary, and follow Bourns' guidelines for derating the inductor's current rating at elevated temperatures.
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3269X-1-202GLF Overview
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