103R-392KS

Overview

The Delevan 103R-392KS is an unshielded surface-mount RF inductor with a nominal inductance of 3.9 µH and a tolerance of ±10%. It features a maximum DC resistance of 1.55 Ω and a rated current capacity of 250 mA. The component utilizes a ferrite core and measures 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. Designed for general-purpose applications, it operates within a temperature range of -55°C to +125°C.

Feature Summary

• Unshielded construction suitable for standard RF circuit layouts
• Ferrite core material for stable inductive performance
• Standard SMD/SMT termination style for PCB mounting

Applications

• RF signal processing circuits
• General-purpose inductive filtering
• Impedance matching networks

Procurement Notes

Verify the specific manufacturer datasheet for the 103R-392KS to confirm current production status and exact electrical tolerances. Ensure that the unshielded design aligns with your electromagnetic interference requirements. Cross-reference the physical dimensions against your PCB footprint specifications before finalizing procurement decisions.

Selection Notes

Select this component when an unshielded 3.9 µH inductor is required for space-constrained RF designs. Consider the 250 mA current rating and 1.55 Ω DC resistance limits relative to your circuit's power dissipation needs. Verify compatibility with standard reflow soldering profiles given the specified operating temperature range.

Part Context

This part belongs to the 103R series of fixed inductors manufactured by API Delevan. The series typically offers various inductance values in a consistent small outline package format. These components are categorized as general-purpose RF inductors intended for use in consumer electronics and communication equipment requiring compact passive components.

Replacement Considerations

Direct substitutes include other 3.9 µH unshielded SMD inductors from manufacturers such as Coilcraft or Bourns, provided they match the 2.54 x 2.54 mm footprint and similar current ratings. Always verify pinout and thermal characteristics before substitution.