103R-391JS

Overview

The Delevan 103R-391JS is an unshielded surface-mount RF inductor with a nominal inductance of 390 nH and a tolerance of ±5%. It features a maximum DC resistance of 240 mOhms and supports a maximum DC current of 635 mA. The component has a minimum Q factor of 22 and a self-resonant frequency of 750 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded construction for minimal magnetic interference
• Standard SMD/SMT termination style for PCB mounting
• Fixed inductance design optimized for RF applications

Applications

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

Procurement Notes

Verify the specific suffix 'JS' against official manufacturer documentation to confirm exact electrical tolerances and terminal specifications. Ensure compatibility with standard pick-and-place equipment given the 2.54 x 2.54 mm footprint. Confirm RoHS compliance status through the latest datasheet before integration into regulated assemblies.

Selection Notes

Select this component when a 390 nH inductance value is required with a 5% tolerance. Consider the 635 mA current rating and 240 mOhm DCR for power handling needs. The unshielded design requires adequate spacing from sensitive components to prevent mutual inductance effects in dense layouts.

Part Context

This part belongs to the Delevan 103/R series of fixed RF inductors. These components are designed for high-frequency applications where precise inductance values are critical. The series offers various tolerance options and inductance values within a standardized small outline package.

Replacement Considerations

Cross-reference with other 390 nH ±5% SMD RF inductors from manufacturers such as API Delevan or Murata. Verify that replacement parts match the 2.54 x 2.54 mm footprint and similar current ratings.