Wurth Elektronik WE-SL5 Surface Mount Common Mode Line Filter 120 μH Sectional Winding ±40 % 2.5 A 744272121

Wurth Elektronik 744272121 Surface Mount Common Mode Line Filter is an advanced passive component designed to filter out unwanted common mode noise and interference on signal and power lines. This device features a high-quality ferrite core with a sectional winding assembly providing an inductance of 120 μH with ±40 % tolerance. It is rated for a maximum DC current of 2.5 A, ensuring stable operation under demanding electrical conditions.

Its compact surface mount design with a 4-pin pin count and tape & reel packaging enables efficient automated assembly in industrial electronic manufacturing. The filter conforms to automotive standard AEC-Q200 and meets RoHS and UL-94-V0 environmental and flame-retardant standards, making it suitable for automotive and industrial electronics use cases.

The operational temperature range spans from -40°C to 125°C, enabling reliable performance in harsh environments. With physical dimensions of 10 mm length, 6.5 mm height, and 8.7 mm depth, it fits into space-constrained PCB designs. Its low maximum DC resistance of 25 mΩ supports efficient signal transfer with minimal loss.

This common mode line filter is especially useful in applications such as Controller Area Network (CAN) bus systems, USB data and power lines, Firewire interfaces, and other data and power line applications that require signal integrity improvements and electromagnetic interference (EMI) reduction. The sectional winding and ferrite core construction provide impedance levels up to 13 kΩ at frequencies relevant for noise suppression.

Features a ferrite core for effective noise suppression. Supports maximum DC current of 2.5 A for robust application. Designed in a 4-pin tape and reel packaging suitable for automated mounting. Complies with automotive standard AEC-Q200 and environmental standards RoHS and UL-94-V0.

Operates reliably from -40°C up to 125°C temperature range. Compact dimensions with 10 mm length, 6.5 mm height, and 8.7 mm depth. Sectional winding construction ensures consistent inductance performance. Maximum DC resistance is low at 25 mΩ for efficiency.

Applications include automotive and industrial buses, USB, Firewire, and power lines requiring EMI filtering.

This component is a vital element for industrial, automotive, communication, and consumer electronics manufacturing processes requiring EMI mitigation to meet regulatory and performance standards.

Explore more Wurth Elektronik products and Surface Mount Inductors on EnvMart to find compatible components for your electronic designs and manufacturing needs.