105-392H

Overview

The Delevan 105-392H is an unshielded fixed RF inductor with a nominal inductance of 3.9 µH and a tolerance of ±3%. It features a maximum DC resistance of 2.8 Ohms and a rated current of 185 mA. The component operates within a temperature range of -55°C to +105°C and exhibits a self-resonant frequency of 75 MHz.

Feature Summary

• Unshielded construction for minimal magnetic interference
• Surface-mount design for automated PCB assembly
• High-Q performance optimized for RF signal integrity

Applications

• RF circuit filtering
• Impedance matching networks
• Oscillator tank circuits

Procurement Notes

Verify the obsolete lifecycle status before integration, as availability is restricted. Confirm RoHS compliance requirements against project specifications, noting potential regulatory constraints for newer designs. Validate pin compatibility and thermal characteristics during final schematic review.

Selection Notes

Select this component for applications requiring precise 3.9 µH inductance in compact surface-mount layouts. Ensure the 185 mA current rating meets circuit demands to prevent saturation. Consider the unshielded nature when placing components near sensitive analog traces to avoid coupling issues.

Part Context

This part belongs to the Delevan 105 series of RF inductors, designed specifically for high-frequency applications. The series utilizes iron powder cores to achieve stable inductance values with low loss characteristics suitable for radio frequency environments.

Replacement Considerations

Public confirmed substitute part numbers are not available.