105-272K

Overview

The Delevan 105-272K is a fixed surface-mount RF inductor with a nominal inductance of 2.7 µH and a tolerance of 10%. It features a DC resistance of 2 Ω and utilizes an iron core within an epoxy encapsulated construction. The component measures 2.54 mm by 2.54 mm with a height of 1.91 mm, designed for standard SMT PCB mounting.

Feature Summary

• Epoxy encapsulated construction for environmental protection
• Iron core material optimized for RF applications
• Surface mount design for automated assembly

Applications

• RF circuit filtering
• General purpose inductor tasks
• Signal processing stages

Procurement Notes

This component is obsolete and no longer manufactured by API Delevan. Verification of availability requires checking authorized distributors for remaining stock or approved substitute part numbers. Ensure any replacement matches the original electrical specifications and physical footprint to maintain circuit integrity.

Selection Notes

Engineers should prioritize verified substitutes due to the discontinued status. Selection must account for the specific 2.7 µH value and 2 Ω DC resistance. Verify that alternative components support the required operating temperature range and maintain compatibility with existing PCB layouts.

Part Context

The 105 series represents a line of fixed wirewound surface mount inductors from API Delevan. These components are characterized by their compact rectangular package and use of iron cores, distinguishing them from ferrite-based power chokes in the same manufacturer's portfolio.

Replacement Considerations

Similar available substitutes exist but require verification against the original 2.7 µH specification and 2.54 x 2.54 mm footprint. Confirm that replacements maintain equivalent Q-factor characteristics at target frequencies.