4211R-23

Overview

The Delevan 4211R-23 is an axial lead ferrite bead designed for EMI and RFI suppression. It exhibits an impedance of 138 Ohms at a frequency of 25 MHz. The component utilizes a single lead configuration, facilitating through-hole mounting on printed circuit boards. This device serves as a passive filter to attenuate high-frequency noise in electronic circuits.

Feature Summary

• Provides effective attenuation of electromagnetic interference (EMI) and radio frequency interference (RFI).
• Features an axial leaded construction suitable for standard through-hole PCB assembly techniques.

Applications

• High-frequency noise suppression in electronic signal lines.
• EMI filtering in power supply input stages.
• RFI mitigation in sensitive communication equipment.

Procurement Notes

Verify the specific impedance value of 138 Ohms at 25 MHz against design requirements. Confirm the axial leaded package style matches the target PCB footprint. Ensure the manufacturer designation aligns with API Delevan specifications for quality assurance.

Selection Notes

Select this component when axial mounting is required for ferrite bead applications. Consider the 138 Ohm impedance characteristic for targeted noise frequencies around 25 MHz. Evaluate space constraints for through-hole implementation versus surface-mount alternatives.

Part Context

This part belongs to the broader category of ferrite beads and chips used for passive filtering. It complements shielded and unshielded inductor series offered by the manufacturer, addressing distinct EMI suppression needs within magnetic component portfolios.

Replacement Considerations

Cross-reference with other axial ferrite beads offering similar 138 Ohm impedance at 25 MHz. Verify mechanical dimensions and lead spacing compatibility before substitution.

FAQ

What is the impedance specification of the 4211R-23?

The component has an impedance of 138 Ohms measured at a frequency of 25 MHz.

What type of termination does this ferrite bead use?

It uses an axial leaded termination style, designed for through-hole mounting.