108-223H

Overview

The Delevan 108-223H is a fixed surface-mount RF inductor with an inductance of 22 uH and a tolerance of 3%. It features an unshielded wirewound construction on an iron core, designed for high-frequency applications. The component has a maximum DC resistance of 7.5 Ohms and supports a maximum DC current of 57 mA. Its self-resonant frequency is specified at 2.5 MHz, with a minimum Q factor of 32. The physical dimensions are non-standard with two leads, suitable for PCB mounting.

Feature Summary

• Unshielded wirewound design utilizing an iron core for RF signal processing
• High precision inductance stability with 3% tolerance rating
• Optimized for low-current radio frequency circuit integration

Applications

• Radio frequency signal filtering circuits
• Impedance matching networks in RF transceivers
• High-frequency choke applications in communication equipment

Procurement Notes

Verify component authenticity through authorized API Delevan distributors or certified partners. Confirm RoHS compliance status and lead-free soldering requirements against specific project standards. Request official datasheets to validate electrical parameters prior to procurement. Ensure storage conditions meet manufacturer specifications to prevent degradation of the iron core material and wire insulation integrity during supply chain transit.

Selection Notes

Select this component when unshielded inductors are required to minimize parasitic coupling effects in sensitive RF layouts. The 22 uH value suits lower frequency RF bands where higher inductance is necessary. Consider the 57 mA current limit for power budget calculations. The non-standard package requires custom footprint verification. Compare against shielded alternatives if electromagnetic interference suppression is critical for the target application environment.

Part Context

This part belongs to the API Delevan fixed inductor portfolio, specialized for radio frequency electronics. The 108 series denotes a specific form factor within their SMD lineup. As an unshielded wirewound type, it differs from shielded power chokes by prioritizing Q-factor performance over magnetic containment. This classification places it alongside other high-performance RF passive components used in telecommunications and broadcast hardware.

Replacement Considerations

Consult official API Delevan documentation for confirmed substitute part numbers. Verify that any replacement matches the 22 uH inductance, 3% tolerance, and 57 mA current rating. Ensure the substitute maintains the unshielded configuration and compatible self-resonant frequency characteristics.