105-221H

Overview

The Delevan 105-221H is a fixed RF inductor with a nominal inductance of 0.22 µH and a tolerance of ±3%. It features a maximum DC resistance of 0.21 Ω and a self-resonant frequency of 360 MHz. The component supports a maximum rated current of 0.675 A and maintains a minimum quality factor of 40 at the nominal inductance. It utilizes an iron core material within a rectangular surface-mount package, operating reliably between -55 °C and 125 °C.

Feature Summary

• Designed for radio frequency applications as a general-purpose inductor
• Utilizes an iron core material for stable magnetic properties
• Constructed in a rectangular surface-mount package for automated assembly

Applications

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

Procurement Notes

Verify compliance status carefully, as this specific part number is documented as containing lead and non-compliant with RoHS standards. Confirm that the use case permits lead-containing components. Ensure the rectangular SMD footprint dimensions match the PCB layout requirements. Validate that the 0.675 A current rating meets the circuit's operational demands without saturation issues.

Selection Notes

Select this component when a 0.22 µH value is required in a surface-mount form factor. Consider the 360 MHz self-resonant frequency to ensure operation remains below the resonance point for inductive behavior. The iron core selection impacts thermal performance and Q-factor characteristics compared to air or ferrite cores. Verify that the non-RoHS status aligns with environmental regulations for the target market.

Part Context

This component belongs to the API Delevan 105 series of fixed inductors. The series offers various inductance values tailored for RF applications. The 105-221H specifically represents a low-inductance variant suitable for high-frequency circuits where compact size and precise tolerance are critical for signal integrity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.