103R-271H

Overview

The Delevan 103R-271H is an unshielded surface-mount RF inductor with a nominal inductance of 270 nH and a tolerance of 3%. It features a maximum DC resistance of 230 mOhms and supports a maximum DC current of 650 mA. The component exhibits a minimum Q factor of 50 and operates within a temperature range of -55 °C to +125 °C.

Feature Summary

• Unshielded wirewound construction for radio frequency applications
• Surface-mount termination style for PCB integration
• High-Q performance suitable for resonant circuits

Applications

• RF signal processing circuits
• Impedance matching networks
• Filter design in communication systems

Procurement Notes

Verify the specific suffix designation, as variants such as 103R-271HS may exist with different packaging or compliance attributes. Confirm RoHS status and lead content directly with the manufacturer or authorized distributors, as specifications can vary between production batches and regional regulations.

Selection Notes

Select this component when a compact, unshielded inductor with precise 3% tolerance is required for high-frequency operation. Ensure the 650 mA current rating meets the circuit's peak load requirements. Consider thermal management due to the small form factor and potential power dissipation at maximum current levels.

Part Context

This part belongs to the 103R series of fixed RF inductors manufactured by Delevan. The series offers various inductance values in a standardized footprint, designed for general-purpose RF applications where shielding is not strictly necessary.

Replacement Considerations

Cross-reference with other 270 nH SMD RF inductors from manufacturers like Coilcraft or Murata. Verify that replacement parts match the 230 mOhm DCR limit and 650 mA current handling capability to maintain circuit performance.