103R-273GS

Overview

The Delevan 103R-273GS is an unshielded surface-mount RF inductor with a nominal inductance of 27 µH and a tolerance of ±2%. It features a maximum DC resistance of 6.9 Ohms and a rated current of 120 mA. The component measures 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. It operates within a temperature range of -55°C to 125°C and is supplied in reel packaging.

Feature Summary

• Unshielded wirewound construction for RF applications
• High Q factor performance at specified frequencies
• Compact SMD footprint suitable for PCB mounting

Applications

• RF circuit filtering
• Impedance matching networks
• General radio frequency signal processing

Procurement Notes

Verify the specific suffix designation against manufacturer documentation to confirm exact electrical tolerances and material specifications. Ensure compatibility with standard reflow soldering profiles for surface mount technology. Confirm RoHS compliance status through official datasheets prior to integration into regulated assemblies.

Selection Notes

Select this component when a 27 µH inductance value is required with tight ±2% tolerance. Consider the 120 mA current rating and 6.9 Ohm DC resistance for power loss calculations. The unshielded design requires adequate spacing from sensitive components to prevent magnetic interference in dense layouts.

Part Context

This part belongs to the 103/R series of fixed inductors manufactured by API Delevan. The series offers various inductance values in a standardized 1008 metric package size. These components are designed for high-frequency stability and reliability in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other 27 µH unshielded SMD inductors with similar current ratings and package dimensions. Verify that alternative parts meet the same Q factor requirements and thermal operating ranges.