LCF121002B650TG

Common Mode Chokes Overview

The Littelfuse LCF121002B650TG is a surface-mount common mode choke designed for suppressing electromagnetic interference in high-frequency circuits. It features a two-line configuration housed in a compact 1210 (0504 metric) package with four leads. The component provides an impedance of 65 Ohms at 100 MHz and supports a maximum current rating of 250 mA. Its DC resistance is limited to a maximum of 4 Ohms, ensuring minimal signal loss. The device operates reliably within a temperature range of -40°C to 85°C.

Common Mode Chokes Feature Summary

• Suppresses unwanted common mode noise across frequencies ranging from hundreds of megahertz to gigahertz
• Designed for surface mount assembly using SMD/SMT termination styles
• Constructed with a two-channel architecture for dual-line signal filtering

Common Mode Chokes Applications

• High-speed data line protection
• USB interface noise suppression
• HDMI signal integrity enhancement
• General purpose EMI filtering in consumer electronics

Common Mode Chokes Procurement Notes

Verify the obsolete status of this specific part number before initiating procurement processes. Confirm that the 1210 package dimensions align with existing PCB footprints. Ensure compatibility with reflow soldering profiles specified for RoHS-compliant components. Check for available alternatives if supply continuity is required for long-term production.

Common Mode Chokes Selection Notes

Select this component when space constraints require a 1210 footprint for common mode filtering. Choose based on the 65 Ohm impedance requirement at 100 MHz for target frequency suppression. Verify that the 250 mA current rating meets the operational load of the protected lines. Consider the 4 Ohm DCR limit for voltage drop calculations in low-voltage applications.

Common Mode Chokes Part Context

This component belongs to the Littelfuse LCF series of common mode chokes. The series offers various impedance values and current ratings in standardized surface-mount packages. The LCF121002B650TG specifically addresses mid-range impedance needs for compact digital interfaces. It represents a standard solution for EMI compliance in portable devices.

Common Mode Chokes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete product status, direct replacements should be sourced through official Littelfuse channels or verified distributors. Evaluate alternative series members with similar impedance and current specifications.