Würth Elektronik WE-PD SMD Power Choke, 22µH, 5.3A

The Würth Elektronik WE-PD SMD Power Choke is a high-performance, shielded inductor designed for demanding power applications. With an inductance of 22µH and a robust RMS current rating of 5.3A, this component is engineered to handle significant power levels while maintaining stable performance and minimising electromagnetic interference (EMI). Its shielded construction is a critical feature, effectively containing the magnetic field and reducing noise coupling to adjacent circuits, making it ideal for densely packed PCBs.

This choke is part of the renowned WE-PD Series, known for its reliability and efficiency in switch-mode power supplies (SMPS), DC-DC converters, and power conditioning circuits. The component boasts a high saturation current (Isat) of 6.5A, ensuring it can withstand current peaks without a significant drop in inductance, which is vital for maintaining circuit stability under transient loads. Its low DC resistance, with a maximum of just 0.028ohm, translates to reduced power losses and improved overall efficiency, minimising heat generation.

The compact SMD (Surface Mount Device) package, measuring 33mm x 15mm x 43mm, allows for efficient use of board space and is compatible with automated assembly processes. With an inductance tolerance of ±20%, it offers a practical balance for a wide range of filtering and energy storage applications. This power choke is a dependable choice for engineers seeking a robust, shielded inductor to enhance the performance and reliability of their power electronics designs.