EXC-14CH120U

Common Mode Chokes Overview

The EXC-14CH120U is a surface-mount common mode choke filter manufactured by Panasonic Industry. It features a compact 0302 (0805 metric) package with four terminals, designed for high-density PCB layouts. The component utilizes a ferrite core to suppress electromagnetic interference in differential signal lines. Key electrical specifications include a common mode impedance of 12 Ohms measured at 100 MHz, with a tolerance of ±5%. The maximum DC resistance is specified at 1 Ohm, supporting a maximum DC current of 100 mA. The device operates within a temperature range of -40°C to +85°C and is unshielded.

Common Mode Chokes Feature Summary

• Four-terminal surface mount design for efficient noise suppression in differential circuits
• Ferrite core construction providing stable common mode impedance characteristics
• Compact 0302 footprint suitable for space-constrained electronic assemblies

Common Mode Chokes Applications

• High-speed data line filtering in portable consumer electronics
• Noise suppression for USB and other serial communication interfaces
• EMI reduction in automotive infotainment and control modules

Common Mode Chokes Procurement Notes

Verify the exact part number against official Panasonic Industry documentation to ensure compatibility with design requirements. Confirm that the 0302 package dimensions and terminal configuration match the PCB footprint. Check for any specific handling or soldering guidelines provided in the datasheet to maintain component integrity during assembly.

Common Mode Chokes Selection Notes

Select this component when a low-profile, four-terminal common mode choke is required for high-frequency noise attenuation. Ensure the 12 Ohm impedance at 100 MHz aligns with the target frequency spectrum of the interference. Verify that the 100 mA current rating meets the operational demands of the circuit without causing excessive voltage drop due to the 1 Ohm DC resistance.

Common Mode Chokes Part Context

This component belongs to the EXC series of common mode chokes from Panasonic Industry, which are engineered for effective EMI/RFI suppression in compact electronic devices. The series offers various impedance values and package sizes to accommodate different design constraints and performance needs in modern signal processing applications.

Common Mode Chokes Replacement Considerations

Cross-reference with EXC-14CE121U if a higher impedance value is acceptable, noting the difference in impedance specifications. Ensure any substitute maintains the 0302 package size and four-terminal configuration to fit existing PCB footprints without modification.