SMB2.5-1

Overview

The Delevan SMB2.5-1 is a surface-mount ferrite bead designed for high-current noise suppression applications. It features a J-lead package configuration with dimensions of 9.02 mm in length and 4.7 mm in height. The component exhibits an impedance of 385 Ohms at 100 MHz, providing effective attenuation for high-frequency interference. It supports a maximum DC current rating of 9.5 A while maintaining a low maximum DC resistance of 5 mOhm. This specification ensures minimal signal loss and power dissipation in power supply lines requiring robust filtering capabilities.

Feature Summary

• High current handling capability suitable for power line filtering
• Low DC resistance to minimize voltage drop and heat generation
• J-lead surface mount design for secure PCB attachment

Applications

• Power supply input/output filtering
• DC-DC converter output stages
• Noise suppression in high-current digital circuits

Procurement Notes

Verify the manufacturer designation, as API Delevan and Delevan are associated with this part number. Confirm the specific impedance tolerance and current rating requirements against your circuit design before ordering. Ensure the J-lead footprint matches your PCB layout specifications. Check for RoHS compliance status if required by your manufacturing standards. Validate the datasheet version to ensure accurate dimensional data.

Selection Notes

Select this component when high current capacity is critical alongside noise suppression. The 9.5 A rating distinguishes it from lower-current ferrite beads. Consider the 385 Ohm impedance value at 100 MHz for target frequency attenuation. The low 5 mOhm DCR is essential for efficiency-sensitive power paths. Evaluate the physical size constraints due to the 9.02 mm length.

Part Context

This part belongs to the SMB2 series of ferrite beads from API Delevan. The series offers various impedance and current ratings tailored for different power electronics needs. The SMB2.5-1 specifically targets high-current applications where standard ferrite beads would saturate or overheat. It serves as a passive component for electromagnetic interference (EMI) reduction in modern electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by matching impedance curves and current ratings rather than relying on direct cross-references without official manufacturer confirmation.