744290283

Overview

The Würth Elektronik 744290283 is a surface-mount common mode line filter from the WE-UCF series. It features an inductance of 28 mH at a test frequency of 10 kHz and supports a maximum DC current of 300 mA. The component has a maximum DC resistance of 2.8 Ohms and operates within a temperature range of -40°C to +125°C. Its physical dimensions are 14 mm in length, 12.5 mm in width, and 7.8 mm in height.

Feature Summary

• Provides common mode noise suppression for differential signal lines
• Designed for surface mount PCB integration
• Constructed with unshielded magnetic core architecture

Applications

• High-speed data interface filtering
• USB port noise attenuation
• Ethernet line protection

Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm electrical characteristics and mechanical footprint. Ensure compatibility with automated pick-and-place equipment regarding the SMD package profile. Cross-reference RoHS compliance status directly with the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this component when high inductance values are required for low-frequency noise suppression in compact designs. Evaluate the 300 mA current rating against the application's peak load requirements. Consider the 2.8 Ohm DC resistance impact on signal integrity or power loss within the specific circuit topology.

Part Context

This component belongs to the WE-UCF series of sectional common mode chokes manufactured by Würth Elektronik. These devices are engineered for applications requiring effective electromagnetic interference reduction in space-constrained environments while maintaining reliable performance across industrial temperature ranges.

Replacement Considerations

Consult official Wurth Elektronik substitution guides for verified alternatives. Do not assume pin-compatible substitutes without verifying inductance, current rating, and impedance specifications.