Wurth Elektronik WE-LHMI 4020 Shielded Multilayer Surface Mount Inductor with Composite Iron Powder Core 4.7 μH 74437324047

Wurth Elektronik 74437324047 is a high-quality WE-LHMI series shielded multilayer surface mount inductor designed for demanding electronic component applications. This inductor features a composite iron powder core with wirewound construction, providing excellent magnetic shielding and reduced leakage fields. With a nominal inductance of 4.7 μH and a tolerance of ±20 percent, it is optimized for robust performance in power electronics circuits.

The component supports a maximum DC current of 2.2 A, making it ideal for high transient current applications such as DC-DC converters, POL converters, and portable power devices including digital cameras and PDAs. It complies with the automotive standard AEC-Q200, assuring suitability for automotive and industrial use cases.

Its compact 4020 package (4.06 mm length x 4.06 mm depth x 1.8 mm height) allows easy surface mount integration on printed circuit boards. The inductor operates reliably within a wide temperature range from -40°C to 125°C. It has a maximum DC resistance of 105 mΩ to minimize power loss and a maximum self-resonant frequency of 31 MHz, supporting high-frequency switching environments.

The product meets multiple environmental and safety standards, including RoHS, REACH, JEDEC JS709B, and IEC 61249-2-21, ensuring compliance across international regulations. Packaging is provided in tape & reel format for efficient automated assembly and manufacturing processes.

Typical applications for the WE-LHMI inductor series include power supply regulation, battery-operated devices, graphics cards, FPGA power management, and other circuits requiring high current handling and low acoustic noise shielding.

Constructed as a wirewound multilayer inductor with composite iron powder core. Shielded design minimizes electromagnetic interference and leakage fields. Suitable for industrial, automotive, and portable electronics applications.

Compact surface mount 4020 case size fits densely packed PCBs. Wide operating temperature range supports harsh environmental conditions. Tape and reel packaging optimizes automated assembly processes. Meets stringent international environmental and automotive standards.

High maximum DC current rating handles transient spikes without performance loss. Low DC resistance reduces power dissipation and improves efficiency. High maximum self-resonant frequency supports high-frequency circuit designs.

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