103R-273F

Overview

The Delevan 103R-273F is an unshielded surface-mount RF inductor from the 103/R series. It features a nominal inductance of 27 µH with a tolerance of ±1%. The component has a maximum DC resistance of 6.9 Ohms and supports a maximum DC current of 120 mA. Key electrical parameters include a minimum Q factor of 25 and a self-resonant frequency of 22 MHz. The physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded construction for specific RF circuit requirements
• High precision inductance tolerance of ±1%
• Designed for PCB mount surface-mount technology applications

Applications

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

Procurement Notes

Verify RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Confirm that the ordering suffix matches the required tolerance and packaging specifications. Ensure compatibility with standard SMT reflow processes for the specified package size.

Selection Notes

Select this component when a precise 27 µH inductance is required in a compact 1008 (2520 metric) footprint. Consider the low current rating of 120 mA and high DC resistance when designing power-sensitive RF stages. Compare against shielded variants if magnetic interference mitigation is necessary.

Part Context

This part belongs to the Delevan 103/R series of fixed RF inductors. These components are designed for general-purpose use in radio frequency applications requiring stable inductance values in small surface-mount packages. The series offers various inductance options within the same mechanical form factor.

Replacement Considerations

Cross-reference with other 1008 footprint inductors from different manufacturers if supply constraints exist. Verify that substitute parts meet the same 27 µH inductance, 1% tolerance, and 22 MHz self-resonant frequency specifications.