LCFE121002A350TG

Common Mode Chokes Overview

The Littelfuse LCFE121002A350TG is a surface mount common mode choke from the LCFE1210 series. It features a 0504 [1210 Metric] package and supports two lines. The component provides 35 Ohms of impedance with a maximum DC resistance of 4 Ohms and handles a maximum DC current of 100mA. Operating temperatures range from -40°C to +85°C.

Common Mode Chokes Feature Summary

• Effective suppression of common-mode noise in high-speed data applications
• Minimal impact on differential mode signal integrity
• High insertion loss exceeding -31 dB for common mode attenuation in the GHz range

Common Mode Chokes Applications

• ESD protection for high-speed interfaces
• Noise filtering in USB connections
• Signal integrity enhancement in HDMI circuits

Common Mode Chokes Procurement Notes

Verify the complete part number including suffixes against official Littelfuse documentation to ensure correct impedance and tolerance specifications. Confirm RoHS compliance status and lead times directly with authorized distributors, as manufacturing schedules may vary. Ensure storage conditions align with moisture sensitivity levels specified in the datasheet prior to assembly.

Common Mode Chokes Selection Notes

Select this component when designing circuits requiring compact EMI filtering for differential pairs. The 1210 footprint suits space-constrained layouts. Evaluate the 100mA current rating against peak operational loads. Consider the 35 Ohm impedance value relative to target frequency attenuation requirements for specific bus standards like USB or HDMI.

Common Mode Chokes Part Context

This device belongs to the Littelfuse LCFE1210 series of common mode filters. These components are engineered for surface mount technology (SMT) applications. The series offers various impedance values within the same physical envelope to accommodate different filtering needs while maintaining consistent board space utilization for high-density electronics.

Common Mode Chokes Replacement Considerations

Check Littelfuse LCFE121002A900TG for higher impedance requirements. Verify pinout compatibility and thermal characteristics before substituting with other manufacturers' 1210 common mode chokes. Ensure equivalent DC resistance and current ratings to maintain circuit performance.