B-02-R

Overview

The KEMET B-02-R is a through-hole ferrite bead designed for electromagnetic interference suppression. It features an axial lead configuration with curved leads and measures 4.2mm by 10.5mm. The component supports a continuous operating current of 5A and provides a direct current resistance (DCR) of 4 Ohms. It functions as a normal mode differential mode choke suitable for signal line filtering applications.

Feature Summary

• Axial lead construction with pre-curved terminals for automated assembly
• Normal mode noise suppression capability for signal lines
• High current handling capacity rated at 5A

Applications

• Signal line EMI filtering
• Differential mode noise suppression
• General purpose electromagnetic interference mitigation

Procurement Notes

Verify the specific manufacturer designation, as the part number appears in documentation associated with multiple entities including YAGEO Group aliases. Confirm the exact physical dimensions and lead style match the design requirements before procurement to ensure compatibility with existing footprints.

Selection Notes

Select this component when high current handling up to 5A is required alongside moderate impedance characteristics. The 4 Ohm DCR indicates significant resistive loss, which must be accounted for in low-voltage signal paths. Ensure the axial form factor fits the mechanical constraints of the target enclosure.

Part Context

This ferrite bead belongs to the category of passive components used for high-frequency noise attenuation. Unlike standard inductors, it utilizes magnetic material properties to dissipate energy as heat. The axial package distinguishes it from surface-mount alternatives, offering robust mechanical anchoring for vibration-prone environments.

Replacement Considerations

Check for equivalent axial ferrite beads with matching 5A current ratings and similar body dimensions. Verify that substitute parts maintain comparable impedance curves at target frequencies to ensure consistent noise suppression performance.