HRB0805S300K4.00FT

Chip Ferrite Bead Overview

The AEM HRB0805S300K4.00FT is a high-reliability ferrite chip bead in an 0805 (2012 metric) surface-mount package. It exhibits an impedance of 30 Ohms with a tolerance of +/-10% at a test frequency of 100 MHz. The component supports a maximum DC current of 4.0 Amperes and has a maximum DC resistance of 20 mOhms. Operating temperature ranges from -55°C to +125°C. Physical dimensions are 2 mm length, 1.25 mm width, and 0.9 mm height.

Chip Ferrite Bead Feature Summary

• High reliability construction for demanding electronic environments
• Surface-mount design compatible with standard SMD/SMT assembly processes
• Low DC resistance to minimize power loss in high-current applications

Chip Ferrite Bead Applications

• Electromagnetic interference suppression in power supply lines
• Signal integrity protection in high-speed digital circuits
• Common mode noise filtering in data transmission interfaces

Chip Ferrite Bead Procurement Notes

Verify RoHS compliance status as documentation indicates non-compliance. Confirm availability through authorized distributors, as Mouser currently lists restricted sales in certain regions. Ensure the specific suffix matches required impedance and current ratings. Check for moisture sensitivity level requirements if applicable to the manufacturing process. Validate that the 0805 footprint aligns with the target PCB design constraints.

Chip Ferrite Bead Selection Notes

Select this component when high current handling up to 4.0 Amperes is required alongside moderate noise attenuation at 100 MHz. The low 20 mOhm DC resistance makes it suitable for power rails where voltage drop must be minimized. Consider the 0805 package size for space-constrained designs requiring robust thermal performance within the -55°C to +125°C range. Compare against lower current variants if the application does not demand 4.0 Amperes.

Chip Ferrite Bead Part Context

This part belongs to the HRB/03024 Chip Bead Series by AEM, Inc., categorized under Ferrites. It is designed as a high-reliability ferrite chip bead. The series includes other variants such as HRB0805S700P1.50FT and HRB0805S101J1.00FT, which offer different impedance and current characteristics within the same 0805 form factor.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.