EXC-14CX400U

Common Mode Chokes Overview

The EXC-14CX400U is a surface-mount common mode noise filter manufactured by Panasonic. It features a dual-line configuration designed for suppressing electromagnetic interference in high-speed data lines. The component exhibits an impedance of 40 Ohms at 100 MHz and supports a DC current rating of 130 mA. Its direct current resistance is specified as 4 Ohms, ensuring minimal signal loss while providing effective noise attenuation for compact electronic assemblies.

Common Mode Chokes Feature Summary

• Dual-line construction for simultaneous suppression on paired conductors
• High impedance characteristics effective at 100 MHz frequencies
• Surface-mount package optimized for automated assembly processes

Common Mode Chokes Applications

• USB interface circuits requiring EMI suppression
• High-speed data transmission line protection
• Compact consumer electronics with limited board space

Common Mode Chokes Procurement Notes

Verify the exact part number suffix against official Panasonic documentation to ensure correct impedance and current ratings. Confirm RoHS compliance status through the manufacturer's latest datasheet. Cross-reference specifications with authorized distributor catalogs to validate availability and packaging details before finalizing procurement orders.

Common Mode Chokes Selection Notes

Select this component when designing circuits that require common mode noise reduction for differential signal pairs. Ensure the operating current remains within the 130 mA limit to prevent saturation. Verify that the 4 Ohm DCR aligns with the system's power budget and signal integrity requirements for the specific application environment.

Common Mode Chokes Part Context

This component belongs to the EXC-14CX series of common mode chokes from Panasonic Industry. These filters are engineered for use in portable devices and industrial equipment where space constraints necessitate small form factors. The series provides reliable noise suppression for various digital communication interfaces commonly found in modern electronics.

Common Mode Chokes Replacement Considerations

Consult official Panasonic substitution guides for verified alternatives. Ensure any replacement matches the 40 Ohm impedance at 100 MHz and 130 mA current rating. Verify package dimensions and pinout compatibility to maintain mechanical fit without redesigning the PCB layout.