LCF121002B350TG

Common Mode Chokes Overview

The LCF121002B350TG is a surface-mount common mode choke manufactured by Littelfuse Inc. It features a dual-line configuration designed for noise suppression in electronic circuits. The component exhibits an impedance of 35 Ohms at a frequency of 100 MHz. It supports a maximum DC current rating of 200 mA and has a maximum DC resistance (DCR) of 4 Ohms. The device operates within a temperature range of -40°C to +85°C and utilizes a standard SMD mounting style.

Common Mode Chokes Feature Summary

• Dual-line construction for effective common mode noise filtering
• Surface mount design suitable for automated PCB assembly
• RoHS compliant manufacturing process

Common Mode Chokes Applications

• Signal line noise suppression
• Data interface protection
• General EMI filtering in compact electronics

Common Mode Chokes Procurement Notes

Verify the complete part number including suffixes against official Littelfuse documentation to ensure exact electrical specifications. Confirm RoHS compliance status with the supplier if required by specific regulatory standards. Check datasheet revisions for any updates to mechanical dimensions or thermal characteristics before finalizing procurement.

Common Mode Chokes Selection Notes

Select this component when a low-profile, dual-line filter is required for high-frequency noise attenuation. Ensure the circuit's operating current remains below the 200 mA limit to prevent saturation. Verify that the 4 Ohm DCR does not introduce excessive voltage drop in the signal path. Confirm compatibility with the target PCB footprint and reflow soldering profiles.

Common Mode Chokes Part Context

This component belongs to Littelfuse's LCF series of common mode chokes. These devices are engineered for applications requiring efficient electromagnetic interference reduction in space-constrained environments. The series typically offers various impedance and current ratings to suit different signal integrity requirements.

Common Mode Chokes Replacement Considerations

Consult Littelfuse official substitution guides for verified alternatives. Ensure replacement parts match the 1210 package size, 35 Ohm impedance at 100 MHz, and 200 mA current rating. Verify pinout compatibility and thermal performance equivalence.