103R-470JS

Overview

The Delevan 103R-470JS is an unshielded surface-mount RF inductor with a nominal inductance of 47 nH and a tolerance of ±5%. It features a maximum DC resistance of 145 mΩ and supports a maximum DC current of 820 mA. The component has a minimum Q factor of 42 and a self-resonant frequency of 1.22 GHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. The device utilizes standard terminations and is supplied in reel packaging.

Feature Summary

• Unshielded construction for minimal magnetic interference
• High self-resonant frequency capability for RF applications
• Surface-mount design for automated PCB assembly

Applications

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

Procurement Notes

Verify the specific suffix 'JS' to confirm the 5% tolerance rating, as other variants in the 103R series may have different tolerances or current ratings. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the reel packaging format aligns with your surface-mount production equipment requirements.

Selection Notes

Select this component when a precise 47 nH inductance with tight 5% tolerance is required for high-frequency circuits. The 820 mA current rating suits moderate power RF applications. Consider the unshielded nature if magnetic coupling with nearby components must be minimized, and verify that the 1.22 GHz self-resonant frequency exceeds the operating frequency of the target application.

Part Context

This part belongs to the Delevan 103R series of fixed RF inductors. The series offers various inductance values and tolerance options, identified by alphanumeric suffixes. The 103R-470JS specifically denotes the 47 nH value with 5% tolerance, distinguishing it from other series members like the 103R-470KS (10% tolerance) or 103R-471HS (3% tolerance).

Replacement Considerations

Direct substitutes within the same series include the 103R-470KS (10% tolerance) and 103R-470N (30% tolerance), provided the looser tolerance specifications are acceptable for the circuit design. Verify that alternative parts match the 145 mΩ DCR and 820 mA current limits.