0805RB-121XMRC

Overview

The Coilcraft 0805RB-121XMRC is a wirewound ferrite bead in an 0805 surface-mount package. It offers 120 Ohms impedance at 100 MHz with a maximum DC resistance of 130 mOhms and a current rating of 1.2 A. The component operates between -40°C and +80°C, features matte tin over nickel terminations, and complies with RoHS standards.

Feature Summary

• Wirewound construction for stable high-frequency performance
• Designed for power line noise suppression
• RoHS compliant and halogen-free composition

Applications

• Power line filtering
• High-speed signal noise suppression
• EMI suppression in compact circuits

Procurement Notes

Verify the specific suffix XMRC to confirm termination plating (matte tin) and packaging format (7-inch machine-ready reel). Confirm impedance tolerance class M (20%) matches design requirements. Ensure thermal limits align with the +80°C operating range during soldering and operation.

Selection Notes

Select this component for applications requiring low DC resistance and moderate current handling in a small footprint. Verify that the 120 Ohm impedance profile suits the target noise frequency. Check if the 20% tolerance meets circuit precision needs compared to tighter alternatives.

Part Context

This part belongs to the 0805RB series of wirewound ferrite beads from Coilcraft. These components are engineered for compact PCB layouts where space is limited. The series provides reliable EMI suppression for sensitive electronics while maintaining low insertion loss in power paths.

Replacement Considerations

Check for exact impedance and current rating matches. Verify package dimensions and termination compatibility. Consult manufacturer cross-reference lists for verified equivalents.