105R-391H

Overview

The Delevan 105R-391H is a fixed RF inductor with an inductance of 390 nH and a tolerance of ±5%. It features a maximum DC current rating of 585 mA and a maximum DC resistance of 280 mOhms. The component has a minimum Q factor of 35 and a self-resonant frequency of 185 MHz. It utilizes standard nonstandard two-lead termination for PCB mounting. The physical dimensions are approximately 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Fixed inductance design optimized for radio frequency applications
• Nonshielded construction with standard two-lead termination
• Surface mount installation style for printed circuit boards

Applications

• RF choke circuits
• Radio frequency signal filtering
• Impedance matching networks

Procurement Notes

Verify availability status carefully as this component may be discontinued or subject to limited supply constraints. Confirm RoHS compliance details through official manufacturer documentation prior to ordering. Ensure the specific lead configuration matches the target PCB footprint requirements. Check for active replacement part numbers if production continuity is required.

Selection Notes

Select this component when a 390 nH inductance value is required with a 5% tolerance. Consider the 585 mA current limit and 280 mOhm resistance for power handling needs. The 185 MHz self-resonant frequency defines the upper operational limit. Verify that the nonshielded nature does not interfere with nearby sensitive components on the layout.

Part Context

This part belongs to the 105/R series of RF inductors manufactured by Delevan. It is categorized under fixed inductors and chokes. The product line targets radio frequency applications requiring precise inductive values. The series includes various inductance options within the same physical package family.

Replacement Considerations

Public confirmed substitute part number: LQW2UASR39F00L from Murata Electronics.