103R-681JS

Overview

The Delevan 103R-681JS is an unshielded surface-mount RF inductor with a nominal inductance of 680 nH and a tolerance of 5%. It features a maximum DC current rating of 435 mA and a maximum DC resistance of 520 mOhms. The component has 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 construction for standard RF applications
• Surface-mount design compatible with PCB mounting
• Standard termination style for automated assembly

Applications

• RF circuit filtering
• Impedance matching networks
• General-purpose RF signal processing

Procurement Notes

Verify the specific manufacturer designation, as sources list both Delevan and API Delevan Inc. Confirm RoHS compliance status details directly from the official datasheet. Ensure the ordering suffix matches the required tolerance and packaging configuration for your production line requirements.

Selection Notes

Select this component when an unshielded SMD inductor is required for RF circuits. The 680 nH value suits frequencies up to the self-resonant limit. Consider the 435 mA current rating and 520 mOhm resistance for power handling needs. Compare against shielded alternatives if electromagnetic interference suppression is critical for the application.

Part Context

This part belongs to the 103/R series of fixed RF inductors manufactured by Delevan. It is categorized under Surface Mount Device (SMD) components within the broader Inductors, Chokes & Coils family. The product is designed for high-frequency electronic applications requiring precise inductance values.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative manufacturers based on identical electrical parameters and mechanical footprint before substitution.