4211R-15

Overview

The Delevan 4211R-15 is an axial lead ferrite bead designed for EMI suppression. It provides an impedance of 78 Ohms at a test frequency of 100 MHz. The component features a single-line configuration with wound bead construction. It is classified as a passive electromagnetic interference filter suitable for through-hole mounting applications.

Feature Summary

• Provides targeted attenuation of high-frequency noise signals
• Utilizes wound bead architecture for consistent impedance characteristics
• Designed for integration into circuits requiring EMI/RFI mitigation

Applications

• Electromagnetic interference suppression in signal lines
• Radio frequency interference filtering
• High-frequency noise reduction in electronic assemblies

Procurement Notes

Verify the specific manufacturer designation, as API and Delevan entities have undergone structural changes. Confirm RoHS compliance status and current availability directly with authorized distributors or the manufacturer, as this part may be subject to obsolescence or limited production runs. Ensure the axial package dimensions match the target PCB layout requirements before finalizing procurement.

Selection Notes

Select this component when a specific impedance value of 78 Ohms at 100 MHz is required for noise suppression. Consider the axial leaded form factor for through-hole assembly processes. Evaluate the current handling capabilities against circuit requirements, noting that ferrite beads primarily offer impedance rather than current limiting resistance. Compare alternative impedances within the 4211R series if the noise spectrum differs.

Part Context

This component belongs to the Delevan 4211R series of ferrite beads. The series offers various impedance values tailored for different frequency suppression needs. These components are engineered for reliability in demanding electronic environments, providing effective common-mode noise reduction without introducing significant DC resistance.

Replacement Considerations

Direct substitutes include other 78 Ohm @ 100 MHz axial ferrite beads from manufacturers such as TDK (BLM series) or Murata (LQP series). Verify physical footprint compatibility and impedance tolerance specifications when cross-referencing.