106-393K

Overview

The Delevan 106-393K is a fixed surface-mount RF inductor with a nominal inductance of 39 µH and a tolerance of ±10%. It features an unshielded wirewound construction using an iron core material. The component has a maximum DC resistance of 17 Ohms and a rated current of 75 mA. Electrical characteristics include a minimum Q factor of 30 at a test frequency of 2.5 MHz and a self-resonant frequency of 10 MHz. The device operates within a temperature range of -55°C to 125°C and utilizes a nonstandard chip SMT package.

Feature Summary

• Unshielded wirewound design for general-purpose RF applications
• Iron core construction providing stable inductance characteristics
• Surface-mount technology compatible with PCB assembly processes

Applications

• RF choke circuits
• General purpose inductive filtering
• Signal processing networks

Procurement Notes

Verify the specific manufacturer part number against official API Delevan documentation, as availability may be limited or subject to discontinuation notices. Confirm compliance status and RoHS certification details directly with the supplier, as historical data indicates potential variations in environmental compliance for this series. Ensure the unshielded configuration aligns with electromagnetic interference requirements for the target application before finalizing procurement orders.

Selection Notes

Select this component when an unshielded inductor is required for RF applications where magnetic field containment is not critical. The 39 µH value and 75 mA current rating suit low-power signal processing tasks. Consider the 17 Ohm DC resistance impact on circuit efficiency. Verify that the nonstandard package dimensions fit the available PCB footprint area without requiring custom layout adjustments.

Part Context

This component belongs to the Delevan 106 series of fixed inductors designed for surface-mount mounting. The series typically offers various inductance values optimized for radio frequency environments. The 106-393K specifically represents a higher inductance option within this family, utilizing iron core technology distinct from ferrite-based alternatives found in other Delevan product lines.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Evaluate alternative unshielded SMD inductors with matching 39 µH inductance, 75 mA current rating, and compatible package dimensions if direct replacement is necessary.