4211R-29

Overview

The Delevan 4211R-29 is an axial lead ferrite bead designed for EMI/RFI suppression. It exhibits an impedance of 228 Ohms at a test frequency of 25 MHz. The component features a single-line configuration with axial termination and through-hole mounting. Its physical dimensions include a diameter of 3.5 mm and a length of 4.4 mm. The device operates within a standard temperature range suitable for general electronic applications.

Feature Summary

• Provides electromagnetic interference suppression through high impedance characteristics
• Utilizes axial lead construction for reliable through-hole integration
• Engineered as a wound bead filter for signal line noise reduction

Applications

• Signal line filtering in electronic circuits
• Power supply input/output noise suppression
• Data bus protection against high-frequency interference

Procurement Notes

Verify the specific impedance tolerance and thermal rating requirements against the official datasheet before ordering. Confirm that the axial package dimensions align with the target PCB footprint. Ensure the supplier provides traceability documentation compliant with project standards. Check for RoHS compliance status if required by the end-use environment.

Selection Notes

Select this component when a low-profile axial ferrite bead is required for 25 MHz noise attenuation. Compare the 228 Ohm impedance value against circuit sensitivity to ensure adequate filtering without excessive signal loss. Consider the physical size constraints relative to available board space. Evaluate thermal performance under expected operating currents to prevent saturation or overheating.

Part Context

This part belongs to the API Delevan ferrite bead family, specialized for passive EMI suppression. The 4211R series utilizes wound bead technology to achieve targeted impedance profiles. These components are distinct from multilayer chip inductors, offering higher current handling capabilities in axial packages for robust circuit protection.

Replacement Considerations

Cross-reference with other axial ferrite beads offering similar 228 Ohm impedance at 25 MHz. Verify mechanical compatibility regarding lead spacing and body diameter. Ensure electrical parameters such as DC resistance and saturation current match the original design specifications.