EXC-14CE121X

Common Mode Chokes Overview

The Panasonic EXC-14CE121X is a surface-mount common mode noise filter designed for the suppression of electromagnetic interference in high-speed data lines. This component operates within a -40°C to +85°C temperature range and features a compact 0302 package size. It provides an impedance of 120 ohms at 100 MHz, with a maximum DC resistance of 3.8 ohms and a current rating of 100 mA. The device supports a DC voltage rating of 5V, making it suitable for protecting sensitive signal integrity in portable electronic applications.

Common Mode Chokes Feature Summary

• Provides effective common mode noise filtering for high-speed digital interfaces
• Compact 0302 footprint enables dense circuit board layouts
• Low DC resistance minimizes signal attenuation on data lines
• Rated for operation in automotive-grade temperature environments

Common Mode Chokes Applications

• High-speed USB interface protection
• HDMI signal line noise suppression
• LVDS display interface filtering
• Mobile device data port EMI reduction

Common Mode Chokes Procurement Notes

Verify the specific suffix 'X' against the manufacturer's official datasheet to confirm packaging configuration and tape-and-reel specifications. Ensure that the 100mA current rating aligns with the target application's peak signal requirements. Confirm compliance with RoHS directives if required by the end-product regulations. Cross-reference the 0302 package dimensions with PCB footprints to prevent mounting errors during assembly.

Common Mode Chokes Selection Notes

Select this component when space constraints require a 0302 package size while maintaining necessary EMI suppression capabilities. The 120 ohm impedance value is appropriate for standard high-speed digital signals. Consider the 100mA current limit to ensure the component does not saturate under normal operating conditions. Evaluate the 3.8 ohm DCR impact on signal loss for long trace lengths or critical timing applications.

Common Mode Chokes Part Context

This part belongs to Panasonic's EXC series of common mode chokes, which are engineered for consumer electronics and automotive infotainment systems. The series emphasizes miniaturization without compromising filtering performance. The EXC-14CE121X specifically targets applications requiring robust noise immunity in tight spaces, such as smartphones and tablets.

Common Mode Chokes Replacement Considerations

Consult official Panasonic substitution guides for equivalent parts within the EXC series. Verify that any alternative maintains the 0302 package and 120 ohm impedance characteristics. Ensure compatibility with existing PCB footprints and soldering profiles.