105-391H

Overview

The Delevan 105-391H is an unshielded surface-mount RF inductor with a nominal inductance of 390 nH and a tolerance of ±3%. It features a maximum DC resistance of 280 mOhms and supports a maximum DC current of 585 mA. The component has a minimum Q factor of 35 at 25 MHz and a self-resonant frequency of 185 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. Designed for PCB mounting, it operates within a temperature range of -55°C to 125°C.

Feature Summary

• Unshielded construction suitable for RF applications
• Standard terminal configuration for surface mount installation
• High Q factor performance at 25 MHz

Applications

• RF circuit design
• PCB mounting applications

Procurement Notes

Verify the specific ordering suffix and package type when sourcing this component, as availability may vary by distributor. Confirm that the selected variant matches the required electrical parameters, including inductance tolerance and current ratings. Check for any discontinuance notifications or end-of-life status updates from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component based on its 390 nH inductance value and 585 mA current rating requirements. Ensure the 280 mOhm DC resistance fits the circuit's power loss constraints. Verify that the 2.54 x 2.54 mm footprint aligns with the PCB layout. Consider the unshielded nature of the device for potential electromagnetic interference implications in dense layouts.

Part Context

This part belongs to the 105/R series of fixed inductors manufactured by API Delevan. These components are designed for high-performance inductive applications requiring precise inductance values. The series offers various inductance options within a standardized surface-mount package format.

Replacement Considerations

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