FB20022-4B

Chip Ferrite Bead Overview

The Bourns FB20022-4B is a wide-band ferrite choke designed for high impedance and EMI suppression. It features a cylindrical ferrite core with an inner diameter of 0.61 mm and an outer diameter of 5.99 mm, measuring 10.01 mm in length. The component exhibits an impedance of 900 ohms at 100 MHz with a tolerance of 25%. Rated for a current of 5A with a maximum temperature rise of 20°C, it operates within a temperature range of -40°C to +105°C. This axial termination device supports differential and common mode configurations.

Chip Ferrite Bead Feature Summary

• Provides excellent electromagnetic interference suppression across a wide frequency range
• Offers high impedance characteristics for effective noise filtering
• Supports both differential and common mode signal configurations

Chip Ferrite Bead Applications

• High-frequency noise suppression circuits
• EMI filtering in electronic assemblies
• Wide-band choke applications requiring compact form factors

Chip Ferrite Bead Procurement Notes

Verify the specific suffix (e.g., RC) when ordering, as it may indicate RoHS compliance or packaging variations. Confirm that the 900 Ohm impedance at 100 MHz aligns with your target noise frequencies. Ensure the 5A current rating meets your circuit's thermal requirements under expected operating conditions. Check axial lead dimensions against your PCB layout constraints.

Chip Ferrite Bead Selection Notes

Select this component when broad-spectrum EMI attenuation is required rather than narrowband filtering. The 0.61 mm bore size limits wire gauge compatibility, so verify conductor fit before integration. Consider the 900 Ohm impedance value relative to the source and load impedances in your design to ensure effective noise dissipation without signal degradation.

Chip Ferrite Bead Part Context

This part belongs to the Bourns FB2000 series of wide-band chokes. These components utilize cylindrical ferrite cores to provide passive noise suppression. The series is characterized by its ability to handle significant currents while maintaining high impedance over a broad frequency spectrum, making it suitable for various industrial and consumer electronics applications.

Chip Ferrite Bead Replacement Considerations

The FB20022-4B-RC is a documented variant of this part number, typically indicating RoHS compliance. Verify mechanical dimensions and electrical specifications match exactly before substitution. No other direct cross-model replacements are confirmed in public documentation.