LCFA121002B900TG

Common Mode Chokes Overview

The LCFA121002B900TG is a surface-mount common mode noise filter from Littelfuse, designed for high-speed differential serial interfaces. It features two lines with a rated current of 150 mA and an output impedance of 90 Ohms at 100 MHz. The component has a maximum DC resistance of 4 Ohms and operates within a temperature range of -40°C to 125°C. It meets AEC-Q200 standards for automotive applications and includes ESD protection capabilities.

Common Mode Chokes Feature Summary

• Provides suppression of unwanted common mode noise in the hundred megahertz to gigahertz frequency range
• Includes integrated electrostatic discharge (ESD) protection
• Engineered specifically for high-speed differential serial interfaces

Common Mode Chokes Applications

• Automotive electronics systems requiring AEC-Q200 compliance
• High-speed data line filtering for differential serial interfaces
• Common mode noise suppression in consumer electronics

Common Mode Chokes Procurement Notes

Verify the specific part number suffix against official Littelfuse documentation to ensure correct electrical characteristics. Confirm that the component meets the required AEC-Q200 qualification if used in automotive contexts. Check datasheet specifications for operating temperature ranges and impedance values to match application requirements precisely.

Common Mode Chokes Selection Notes

Select this component when designing circuits that require common mode noise filtering for high-speed differential signals. Ensure the 150 mA current rating and 90 Ohm impedance align with the system's signal integrity needs. Consider the surface-mount package dimensions and thermal performance for PCB layout integration.

Common Mode Chokes Part Context

This component belongs to the LCFA series of common mode filters by Littelfuse. The series is engineered to meet the rigorous engineering requirements for common mode noise filters in demanding electronic environments. These components are widely used in applications where signal integrity and noise suppression are critical for proper system operation.

Common Mode Chokes Replacement Considerations

Consult official Littelfuse substitution guides for verified alternatives. Ensure any replacement maintains the same impedance, current rating, and form factor. Verify compatibility with existing PCB footprints and regulatory certifications before implementation.