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 optimal performance, low thermal resistance, and minimal electromagnetic interference (EMI).
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.
Bourns recommends derating the voltage by 10-15% to ensure reliable operation. For the PWR263S-35-3301F, the maximum allowable voltage is 35V, so the derated voltage would be around 31-32V.
The PWR263S-35-3301F is rated for operation up to 125°C. However, it's essential to consider the inductor's temperature coefficient, which may affect its performance and lifespan in high-temperature environments. Consult Bourns' application notes for guidance on high-temperature operation.
When selecting an inductor, consider factors such as inductance value, current rating, DC resistance, and physical size. Bourns provides a product selection guide and application notes to help engineers choose the right inductor for their specific application.
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