FB20021-4B-RC

Common Mode Chokes Overview

The FB20021-4B-RC is a ferrite bead common mode choke manufactured by Bourns Inc. It features an axial leaded package with four leads, designed for through-hole mounting. The component exhibits an impedance of 460 ohms at 100 MHz and supports a DC current rating of 5A. It consists of two lines with 1.5 coil turns, providing effective noise suppression in electronic circuits.

Common Mode Chokes Feature Summary

• Axial leaded construction with four leads for mechanical stability
• Ferrite material core for high-frequency noise attenuation
• Dual-line configuration for common mode interference reduction

Common Mode Chokes Applications

• Power supply input filtering
• Data line noise suppression
• EMI mitigation in industrial equipment

Common Mode Chokes Procurement Notes

Verify the exact impedance value and current rating against the official Bourns datasheet before integration. Confirm that the axial four-lead package matches the PCB footprint requirements. Check lifecycle status as some distributors list this part as obsolete despite active manufacturing claims.

Common Mode Chokes Selection Notes

Select this component when a 460-ohm impedance at 100 MHz is required for common mode noise control. Ensure the 5A DC current rating meets the circuit's operational load. The axial four-lead design offers robust mechanical anchoring compared to standard two-lead beads.

Common Mode Chokes Part Context

This part belongs to Bourns' ferrite bead series, specifically designed for through-hole applications. It serves as a passive component for electromagnetic interference suppression in power and signal lines.

Common Mode Chokes Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing designs if sourcing alternatives.