105-681G

Overview

The Delevan 105-681G is a surface-mount RF inductor with an inductance of 680 nH and a tolerance of ±2%. It features a maximum DC resistance of 620 mOhms and a rated current of 395 mA. The component operates within a frequency range up to a self-resonant frequency of 340 MHz, with a minimum Q factor of 30 at the test frequency.

Feature Summary

• Unshielded SMD construction for high-frequency applications
• Compact nonstandard lead configuration
• Iron core material for stable performance

Applications

• RF circuits
• Surface mount PCB assembly

Procurement Notes

Verify the specific suffix (e.g., G vs GS) against official documentation to confirm tolerance and packaging details. Confirm RoHS status and lead time directly with the manufacturer or authorized distributors, as availability varies. Ensure the nonstandard footprint matches the target PCB design before ordering.

Selection Notes

Select this component for RF designs requiring 680 nH inductance with tight ±2% tolerance. Consider the 395 mA current rating and 620 mOhm DCR for power loss calculations. Verify that the unshielded design does not interfere with nearby sensitive components due to potential magnetic field radiation.

Part Context

This part belongs to the Delevan fixed inductor family, specifically designed for radio frequency applications. It utilizes a nonstandard two-lead surface mount package, distinguishing it from standard rectangular chip inductors. The series focuses on providing precise inductance values for specialized RF filtering and matching networks.

Replacement Considerations

The 105R-681G shares similar electrical specifications but may differ in physical dimensions or tolerance. Cross-reference datasheets to ensure mechanical compatibility. No other direct substitutes are confirmed in public documentation.