105R-271J

Overview

The Delevan 105R-271J is a fixed surface-mount RF inductor with a nominal inductance of 270 nH. It features a tolerance of 5% and a maximum DC resistance of 230 milliohms. The component is designed for high-frequency applications, offering a minimum quality factor of 34 and a self-resonant frequency of 250 MHz. It supports a maximum DC current of 650 mA and utilizes an epoxy encapsulated construction suitable for SMT assembly.

Feature Summary

• Designed specifically for radio frequency signal processing and filtering applications
• Utilizes a compact surface-mount form factor for automated PCB assembly
• Constructed with epoxy encapsulation to protect the internal coil structure

Applications

• RF circuit filtering
• Impedance matching networks
• High-frequency signal conditioning

Procurement Notes

Verify availability status as this specific part number may be obsolete or discontinued by the manufacturer. Confirm that any substitute components meet the original electrical requirements, including inductance, Q-factor, and current ratings. Ensure the replacement package type matches the existing board layout constraints.

Selection Notes

Select this component for designs requiring precise 270 nH inductance at radio frequencies. Consider the 650 mA current limit and 230 milliohm resistance when calculating power dissipation. Verify that the operating frequency remains below the 250 MHz self-resonant point to maintain inductive behavior.

Part Context

This component belongs to the API Delevan 105/R series of fixed RF inductors. The series is characterized by small surface-mount packages and consistent performance for general-purpose RF applications. The 'J' suffix typically denotes a 5% tolerance rating within this product family.

Replacement Considerations

Public confirmed substitutes include LQW2UASR27J00L. Verify that alternative parts match the 270 nH value, 5% tolerance, and physical footprint dimensions.