784234101

Overview

The Würth Elektronik 784234101 is a WE-CNSA series surface-mount common mode line filter designed for high-speed data protection. It features an inductance of 100 µH and a DC resistance of 4.3 mΩ, supporting a current rating of 1.65 A. The component operates within a temperature range of -40°C to +125°C and utilizes a bifilar winding configuration. Housed in a compact 1210 (3225 metric) package with dimensions of 3.2 mm length, 2.5 mm width, and 1.2 mm height, it provides effective electromagnetic interference suppression for sensitive signal lines.

Feature Summary

• Bifilar winding architecture enhances common mode noise attenuation while maintaining differential signal integrity.
• Compact 1210 surface-mount footprint enables efficient space utilization on dense printed circuit boards.
• Robust thermal performance ensures stable operation across extended industrial temperature ranges.

Applications

• High Speed Data Lines
• USB 2.0 and 3.0 Interfaces
• LVDS Signal Protection
• Flex Ray Communication Systems

Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm impedance characteristics and tolerance levels. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity. Cross-reference the lot date code with production timelines to manage inventory freshness. Confirm that the packaging format aligns with automated pick-and-place requirements for the intended manufacturing process.

Selection Notes

Select this component when designing circuits requiring robust EMI filtering for high-speed digital interfaces. The 100 µH inductance value offers significant attenuation for common mode noise without distorting the desired differential signal. Consider the 1.65 A current rating to ensure the filter handles peak operational currents without saturation. The small 1210 package size makes it suitable for applications with strict spatial constraints on the PCB layout.

Part Context

This part belongs to the WE-CNSA series, which specializes in surface-mount common mode chokes for data line protection. The series is engineered to meet the stringent requirements of modern electronic systems, providing reliable noise suppression for various communication protocols. Würth Elektronik designs these components to support the increasing demand for high-speed data transmission in automotive and consumer electronics applications.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Engineers should evaluate alternative components based on matching inductance, current rating, and package dimensions if substitution is necessary.

FAQ

What is the DC resistance of the 784234101?

The DC resistance is 4.3 mΩ.

Does the 784234101 use a standard or bifilar winding?

It utilizes a bifilar winding configuration.