4232R-221K

Fixed Inductors Overview

The Delevan 4232R-221K is an unshielded wirewound fixed inductor designed for surface mount applications. It features a nominal inductance of 220 nH with a tolerance of ±10%. The component has a maximum DC resistance of 680 mOhms and a rated current of 442 mA. It exhibits a minimum Q factor of 19 and a self-resonant frequency of 140 MHz. The package dimensions are 3.51 mm in length, 2.67 mm in width, and 2.57 mm in height.

Fixed Inductors Feature Summary

• Unshielded wirewound construction suitable for RF circuits
• Surface mount design for automated PCB assembly
• Temperature stable performance characteristics

Fixed Inductors Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF signal processing

Fixed Inductors Procurement Notes

Verify the specific suffix 'K' corresponds to the required 10% tolerance and 680 mOhm DCR specifications. Confirm RoHS compliance status as documentation may vary by manufacturing date. Ensure the 2-SMD footprint matches the target PCB land pattern dimensions of 3.51mm x 2.67mm. Check for any recent PCN updates regarding marking or material changes.

Fixed Inductors Selection Notes

Select this component when a low-inductance value near 220 nH is required for high-frequency operation. The 442 mA current rating suits moderate power applications. Consider the unshielded nature for layout sensitivity. Compare against the 4232-222G if higher inductance or different current ratings are needed. Verify the 140 MHz self-resonant frequency meets the operational bandwidth requirements.

Fixed Inductors Part Context

This part belongs to the Delevan 4232/R series of RF inductors. These components are characterized by their small surface mount footprint and consistent electrical performance. The series offers various inductance values tailored for radio frequency applications. The 4232R-221K specifically targets designs requiring precise low-nanohenry inductance with tight tolerance control.

Fixed Inductors Replacement Considerations

The 4232-221J is a similar unshielded SMD inductor with 220 nH inductance but differs in tolerance (±5%) and DC resistance (680 mOhm). The 4232R-471K offers 470 nH inductance with 10% tolerance. Verify pin compatibility and electrical parameters before substitution.