103R-391FS

Overview

The Delevan 103R-391FS is a surface-mount RF inductor with an inductance of 390 nH and a tolerance of 1%. It features unshielded construction, a maximum DC current rating of 635 mA, and a maximum DC resistance of 240 mOhms. The component operates within a temperature range of -55°C to +105°C, maintaining a minimum Q factor of 30. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded SMD design for high-frequency RF applications
• Iron core construction for stable inductance performance
• Standard SMD/SMT termination for PCB mounting

Applications

• RF circuit filtering
• High-frequency signal processing
• Impedance matching networks

Procurement Notes

Verify the specific manufacturer datasheet for the 103R-391FS to confirm electrical parameters and mechanical tolerances. Ensure compatibility with standard SMD reflow soldering profiles. Check for any recent product change notifications that may affect material composition or performance characteristics prior to final integration.

Selection Notes

Select this component for applications requiring precise 390 nH inductance with tight 1% tolerance. Consider the unshielded nature when designing layouts to minimize electromagnetic interference coupling. Evaluate the 635 mA current rating against peak operational loads to ensure reliability under thermal stress conditions.

Part Context

This part belongs to the 103/R series of fixed inductors from Delevan. The series is designed for surface-mount technology, offering compact footprints suitable for dense PCB layouts. It complements other series like the shielded S1812R by providing unshielded options for specific RF isolation requirements.

Replacement Considerations

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