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 TC42X-2-104E, the maximum allowable voltage is 40 V, so the derated voltage would be around 34-36 V.
The SRF is typically above the operating frequency range. To avoid resonance issues, ensure your design's operating frequency is below the SRF. You can also use impedance analysis tools to identify potential resonance issues and adjust your design accordingly.
Store the inductors in their original packaging, away from direct sunlight, moisture, and extreme temperatures. Handle the components by the body, avoiding touching the leads or core. Use anti-static wrist straps and mats to prevent electrostatic discharge (ESD) damage.
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