103R-121JS

Overview

The Delevan 103R-121JS is an unshielded surface-mount RF inductor with a nominal inductance of 120 nH and a tolerance of 5%. It features a maximum DC resistance of 125 mOhms and supports a maximum DC current of 880 mA. The component has a minimum Q factor of 30 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. It utilizes standard terminations for PCB mounting.

Feature Summary

• Unshielded construction for minimal magnetic interference
• High-current capability up to 880 mA
• Compact SMD footprint suitable for dense layouts

Applications

• RF circuit design
• PCB mount applications

Procurement Notes

Verify the specific suffix 'JS' against official manufacturer documentation to confirm the exact tolerance and packaging specifications. Ensure compatibility with standard reflow soldering profiles for SMD components. Cross-reference the part number with authorized distributors to confirm current availability and lead times prior to procurement planning.

Selection Notes

Select this component when a low-inductance value of 120 nH is required for RF filtering or matching networks. Consider the 5% tolerance and 880 mA current rating relative to circuit demands. Evaluate the unshielded nature against potential electromagnetic interference constraints in the final assembly environment.

Part Context

This part belongs to the Delevan 103/R series of RF inductors. It shares the same electrical characteristics as the 103R-121KS but differs in tolerance and potentially packaging. It is designed for high-frequency applications requiring precise inductance values within a compact surface-mount package.

Replacement Considerations

The 103R-121KS is a verified substitute with identical electrical parameters but a 10% tolerance. Verify that the looser tolerance meets the application requirements before substitution.