103R-681J

Overview

The Delevan 103R-681J is an unshielded surface-mount RF inductor with a nominal inductance of 680 nH and a tolerance of 5%. It features a maximum DC resistance of 520 mOhms and supports a maximum DC current of 435 mA. The component exhibits a minimum Q factor of 22 and a self-resonant frequency of 175 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded chip construction for standard SMT mounting
• Designed specifically for radio frequency applications
• Fixed inductance value with tight tolerance stability

Applications

• RF circuit filtering
• Impedance matching networks
• Radio frequency signal processing

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with standard surface mount assembly processes. Confirm RoHS compliance status through current datasheets before integration into regulated products.

Selection Notes

Select this component when an unshielded form factor is required for space-constrained RF designs. Evaluate the 520 mOhm DC resistance against power loss requirements. Consider the 175 MHz self-resonant frequency limit for high-frequency operation suitability compared to shielded alternatives.

Part Context

This part belongs to the Delevan 103/R series of fixed RF inductors. It utilizes a non-standard lead configuration typical of specialized RF components. The series focuses on providing stable inductance values for sensitive analog and radio frequency signal paths.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.