103R-271F

Overview

The Delevan 103R-271F is a fixed surface-mount RF inductor with a nominal inductance of 0.27 µH (270 nH) and a tolerance of ±1%. It features a maximum DC resistance of 0.23 Ω and a rated current of 650 mA. The component utilizes a ferrite core within an unshielded wirewound construction, housed in a nonstandard two-lead SMD package measuring approximately 2.54 mm in length and width, with a height of 1.91 mm. It operates within a temperature range of -55 °C to 125 °C and exhibits a minimum Q factor of 22 at its self-resonant frequency.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific manufacturer datasheet for the 103R-271F to confirm exact mechanical dimensions and electrical tolerances prior to integration. Ensure that the unshielded nature of the component does not interfere with nearby sensitive traces or components in the final layout. Cross-reference the RoHS compliance status with the latest environmental declarations from API Delevan to meet regulatory requirements.

Selection Notes

Select this component when a precise 270 nH inductance with tight 1% tolerance is required for RF circuits. The unshielded design may necessitate careful placement to avoid magnetic coupling issues. Consider the 650 mA current rating and 0.23 Ω DC resistance to ensure thermal stability under expected operating loads. Compare against shielded alternatives if electromagnetic interference suppression is critical for the application.

Part Context

The 103R series represents a line of fixed inductors manufactured by API Delevan, designed for surface-mount technology. These components are categorized as RF inductors, utilizing wirewound techniques on ferrite cores. The 103R-271F specifically denotes the 270 nH value within this family, offering a balance of precision and performance for electronic signal handling.

Replacement Considerations

Direct substitutes include other 270 nH unshielded SMD inductors with similar current ratings and tolerance levels. Verify that any replacement part matches the physical footprint and pin configuration to ensure compatibility with existing PCB layouts.