LCFE121002H900TG

Common Mode Chokes Overview

The LCFE121002H900TG is a surface-mount common mode noise filter from Littelfuse, designed for high-speed differential line applications. It features a 1210 (3225 metric) package with dimensions of 1.27mm length, 1mm width, and 0.6mm height. The component provides an impedance of 90 Ohms at 100 MHz and supports a rated current of 100mA. It has a maximum DC resistance of 6 Ohms and operates within a temperature range of -40°C to +125°C. The device is AEC-Q200 qualified and RoHS compliant.

Common Mode Chokes Feature Summary

• High-speed differential line filtering capability
• Automotive-grade reliability via AEC-Q200 qualification
• Compact surface-mount design for space-constrained layouts

Common Mode Chokes Applications

• Automotive infotainment systems
• High-speed data interface protection
• Differential signal line noise suppression

Common Mode Chokes Procurement Notes

Verify the specific suffix 'H' against the official Littelfuse datasheet to confirm impedance tolerance and material specifications. Ensure the ordering part number matches the required package variant and that the supplier provides traceability documentation for automotive-grade components.

Common Mode Chokes Selection Notes

Select this component when a compact, automotive-qualified common mode choke is required for high-speed differential pairs. The 90 Ohm impedance at 100 MHz suits USB or similar high-frequency interfaces. Confirm that the 100mA current rating meets the circuit's operational requirements and that the 6 Ohm DCR does not cause excessive voltage drop.

Common Mode Chokes Part Context

This part belongs to the LCFA/LCFE series of common mode filters from Littelfuse. These components are engineered for ESD protection and noise suppression in sensitive electronic circuits. The series offers various impedance values and current ratings to accommodate different signal integrity needs in modern electronic designs.

Common Mode Chokes Replacement Considerations

Check for direct substitutes such as the LCFA121002A900TG, ensuring impedance and current ratings align. Verify pin compatibility and package dimensions before substitution to maintain board layout integrity.