108-393H

Overview

The Delevan 108-393H is a fixed surface-mount RF inductor with an inductance of 39 µH and a tolerance of ±3%. It features an unshielded construction using ferrite core material, designed for high-frequency applications. The component has a maximum DC resistance of 17 Ohms and a rated current of 75 mA. It operates within a temperature range of -55°C to +125°C and exhibits a self-resonant frequency of 10 MHz.

Feature Summary

• Unshielded SMD design suitable for RF choke applications
• Ferrite core construction for stable inductance
• Wide operating temperature range from -55°C to +125°C

Applications

• RF circuit filtering
• High-frequency signal processing
• General purpose RF inductors

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as the part may not meet current standards. Check datasheet revisions for any parameter updates before final integration into new designs.

Selection Notes

Select this component for legacy designs requiring specific 3% tolerance and 17 Ohm DCR characteristics. Ensure PCB layout accommodates the non-standard lead configuration. Consider alternative active parts if RoHS compliance or long-term supply stability is required for new production runs.

Part Context

The 108 series represents a line of unshielded surface-mount RF inductors manufactured by Delevan. These components are characterized by their ferrite cores and specific impedance profiles tailored for radio frequency environments. The 108-393H variant specifically targets applications needing precise 39 µH values with tight tolerances.

Replacement Considerations

This part is listed as End of Life (EOL). No direct equivalent substitutes are documented in the provided source data. Designers should evaluate functional equivalents from other manufacturers that match the 39 µH inductance, 17 Ohm DCR, and SMD form factor.