105R-821K

Overview

The Delevan 105R-821K is a surface-mount RF inductor with an inductance of 820 nH and a tolerance of ±10%. It features a maximum DC resistance of 650 mOhms and a rated current of 385 mA. The component operates within a frequency range up to its self-resonant point, designed for high-frequency applications.

Feature Summary

• Surface-mount wirewound construction optimized for RF circuits
• Unshielded design suitable for specific electromagnetic interference requirements
• Compact footprint facilitating automated PCB assembly processes

Applications

• RF signal filtering networks
• Impedance matching circuits
• High-frequency oscillators

Procurement Notes

Verify the exact datasheet version and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the unshielded variant meets the specific electromagnetic compatibility requirements of the target application environment.

Selection Notes

Select this component when a compact, unshielded SMD inductor with 820 nH nominal value is required. Ensure the 385 mA current rating aligns with the circuit's operational limits and verify that the 650 mOhm DC resistance fits the power loss constraints of the design.

Part Context

This part belongs to the Delevan 105R series of fixed RF inductors. It shares the 820 nH electrical characteristic with other variants like the 105-821M but differs in shielding configuration and package specifications compared to axial or shielded SMD alternatives.

Replacement Considerations

Direct substitutes include the 105-821M from Delevan, which offers similar electrical parameters but may differ in shielding or tolerance specifications. Verify pinout and thermal characteristics before substitution.