The recommended PCB land pattern for the P1812R-222K is a rectangular pad with a size of 1.8 mm x 1.2 mm, with a 0.5 mm hole in the center for the inductor's lead. The pad should be connected to a larger copper area to ensure good thermal dissipation.
To minimize the impact of the inductor's magnetic field, keep other components with high magnetic sensitivity (e.g., transformers, chokes, or other inductors) at a distance of at least 5 mm from the P1812R-222K. You can also use shielding techniques, such as placing a grounded copper plane or a magnetic shield between the inductor and other components.
The P1812R-222K is rated for operation from -40°C to +125°C. However, the inductor's performance may degrade at extreme temperatures, and the core material may saturate above 100°C. It's essential to ensure the inductor is operated within the recommended temperature range to maintain its specified characteristics.
The P1812R-222K is designed to withstand moderate vibration and shock. However, it's essential to ensure the inductor is properly secured to the PCB using a suitable adhesive or mechanical fastening method to prevent damage or dislodging. API Delevan recommends following the IPC-J-STD-001 standard for soldering and assembly.
The SRF of the P1812R-222K can be determined by measuring the inductor's impedance versus frequency using an impedance analyzer or a network analyzer. The SRF is typically the frequency at which the inductor's impedance peaks. You can also consult API Delevan's application notes or contact their technical support for guidance on measuring SRF.
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