103R-271HS

Overview

The Delevan 103R-271HS 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 has a minimum Q factor of 25 at 25 MHz and a self-resonant frequency of 195 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded wirewound construction for RF applications
• Ferrite core material providing stable inductance characteristics
• Standard two-terminal SMD package design

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF signal processing

Procurement Notes

Verify the specific manufacturer designation, as API Delevan assets may be managed by other entities. Confirm RoHS compliance status and lead times directly with authorized distributors or the current rights holder. Ensure the ordering suffix matches the required reel quantity and packaging specifications for your production line.

Selection Notes

Select this component when an unshielded inductor is required to minimize magnetic interference with nearby circuits. The 270 nH value suits higher frequency RF bands where low parasitic capacitance is critical. Consider the 650 mA current rating against peak load requirements to prevent saturation.

Part Context

This part belongs to the 103R series of fixed RF inductors from Delevan. These components are designed for high-frequency applications requiring precise inductance values. The series offers various inductance options within a consistent 1010 (2525 metric) footprint, facilitating standardized PCB layouts across different designs.

Replacement Considerations

Direct substitutes include the 103R-271F if shielding differences are acceptable, or the 103R-561H for different inductance needs within the same package. Verify that any replacement maintains the 270 nH nominal value and similar Q-factor performance at the target operating frequency.