EXC-18CS900U

Common Mode Chokes Overview

The EXC-18CS900U is a surface-mount common mode noise filter manufactured by Panasonic Industry. It features an 0603 (1.6 mm x 0.8 mm) footprint with a maximum height of 0.4 mm. The component provides a common mode impedance of 90 Ohms at a test frequency of 100 MHz, with a tolerance of ±20%. It supports a maximum DC current of 100 mA and has a maximum DC resistance of 3 Ohms. The device operates within a temperature range of -40°C to +85°C and includes integrated ESD protection capabilities.

Common Mode Chokes Feature Summary

• Integrated electrostatic discharge (ESD) protection for signal line safety
• Compact multilayer sintered construction ensuring high mounting reliability
• Low DC resistance design to minimize signal insertion loss

Common Mode Chokes Applications

• Noise suppression of high-speed differential data lines
• Signal line filtering in information equipment
• EMI filtering in AV equipment

Common Mode Chokes Procurement Notes

Verify the specific suffix 'S' against official Panasonic documentation to confirm the inclusion of ESD protection features, as standard variants may differ. Confirm RoHS compliance status through the manufacturer's latest declaration. Ensure the selected packaging format matches production requirements, noting that factory quantities are typically 5000 units per reel.

Common Mode Chokes Selection Notes

Select this component for applications requiring compact noise filtering with built-in ESD protection. The 0603 size suits space-constrained PCB layouts. Verify that the 100 mA rated current meets the circuit's operational demands. Ensure the 90 Ohm impedance aligns with the target frequency spectrum for effective common mode noise attenuation without excessive signal degradation.

Common Mode Chokes Part Context

This part belongs to the EXC18 series of common mode filters designed for high-speed digital interfaces. It utilizes ferrite core material within a shielded or unshielded configuration depending on the specific variant. The series is engineered for reflow soldering processes, offering thermal stability during assembly. It serves as a passive component for electromagnetic interference mitigation in portable and industrial electronics.

Common Mode Chokes Replacement Considerations

Consult official Panasonic substitution guides for verified equivalents. Cross-reference impedance values and physical dimensions when evaluating alternative manufacturers. Ensure any substitute maintains compatible termination styles and operating temperature ranges.