Wurth Elektronik WE-LF Shielded Wirewound Surface Mount Inductor with Manganese Zinc Core 39 mH ±30% 7446120039

Wurth Elektronik 7446120039 is a high-quality WE-LF series shielded wirewound surface mount inductor designed for advanced electronic circuits requiring common mode noise suppression. The inductor possesses a manganese zinc core and sector winding construction, providing stable inductance of 39 mH with an inductance tolerance of ±30%. This product is moulded and includes shielding to minimize electromagnetic interference, making it ideal for mains filters, power electronics, and switched-mode power supply units.

The component features a compact 4-pin configuration with solder terminations suitable for surface mount technology. It measures 18.5 mm in length, 13.5 mm in depth, and 20.5 mm in height. Rated for a maximum DC current of 400 mA and DC resistance of 1.7 Ω, it operates reliably within a temperature range from -25°C to 125°C.

Compliant with RoHS, REACH, JEDEC JS709B, and IEC 61249-2-21 standards, this inductor ensures environmental and performance standards compliance. Its robust design supports reduced leakage fields and effective suppression of common-mode interference in low- to medium-frequency ranges, thereby enhancing the electromagnetic compatibility of devices.

Typical industrial applications include mains filters, power electronics equipment, and switched-mode power supplies, where stable inductance and interference suppression are critical for reliable operation. The inductor's shielded structure also improves operational efficiency in demanding electronic environments.

Constructed with a durable manganese zinc core for reliable performance. Shielded design reduces electromagnetic interference in circuits. Suitable for mains filter circuits and power electronics applications. Compact surface mount form factor with 4 pins and solder termination.

Operates over a temperature range of -25°C to 125°C. Maximum DC current rating of 400 mA and maximum DC resistance of 1.7 Ω. Sector winding construction ensures robust inductance characteristics. Packaged in trays for efficient assembly and handling.

This Wurth Elektronik WE-LF series inductor combines advanced core materials and construction techniques to deliver dependable performance for industrial and commercial electronic applications. It is an essential component for engineers designing circuits that require efficient noise suppression and compact surface mount solutions. Explore more Surface Mount Inductors and related components within the Electronics Components category on EnvMart.