ELK-U101FB

Common Mode Chokes Overview

The Panasonic ELK-U101FB is a surface-mount common mode choke designed for signal line filtering. It features two independent lines with a nominal impedance of 100 ohms at 100 MHz. The component supports a maximum DC current rating of 100 mA and operates within a temperature range of -40°C to +85°C. Constructed in a compact SMD package, it provides effective suppression of common mode noise in high-speed data transmission applications.

Common Mode Chokes Feature Summary

• Dual-line configuration for simultaneous noise suppression on paired signal conductors
• Compact surface-mount design suitable for space-constrained printed circuit boards
• Optimized impedance characteristics for high-frequency common mode noise attenuation

Common Mode Chokes Applications

• High-speed serial data interface protection
• USB and similar differential signal line filtering
• Industrial communication bus noise suppression

Common Mode Chokes Procurement Notes

Verify the specific datasheet version as some sources indicate RoHS non-compliance while others list standard compliance. Confirm the exact package dimensions and termination style against your PCB footprint requirements. Ensure the 100 mA current rating meets your application's peak load demands without saturation.

Common Mode Chokes Selection Notes

Select this component when dual-line common mode noise reduction is required for low-current signal paths. Compare impedance values at target frequencies against competing chokes to ensure adequate attenuation. Verify that the surface-mount form factor aligns with automated assembly capabilities and board density constraints.

Common Mode Chokes Part Context

This part belongs to the ELK-U series of common mode chokes from Panasonic Electronic Components. The series offers various impedance and current ratings tailored for different signal integrity needs. It serves as a passive filter component within the broader category of electromagnetic interference suppression devices.

Common Mode Chokes Replacement Considerations

Cross-reference with other Panasonic ELK-U variants or equivalent SMD common mode chokes from manufacturers like Murata or TDK. Ensure substitute parts match the 100-ohm impedance, 100 mA current rating, and physical package dimensions for direct compatibility.