103R-472FS

Overview

The Delevan 103R-472FS is an unshielded surface-mount RF inductor with a nominal inductance of 4.7 µH and a tolerance of ±1%. It features a maximum DC resistance of 1.8 Ohms and supports a maximum DC current of 230 mA. The component has a minimum Q factor of 22 and a self-resonant frequency of 115 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded chip construction for standard SMT mounting
• High precision inductance tolerance of ±1%
• Designed for radio frequency circuit applications

Applications

• RF signal processing circuits
• Radio frequency filtering networks
• Impedance matching networks

Procurement Notes

Verify the specific manufacturer datasheet to confirm RoHS compliance status and exact packaging quantities. Ensure the ordering suffix matches the required reel or bulk configuration. Cross-reference the part number with official distributor catalogs to validate current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when a precise 4.7 µH inductance with tight ±1% tolerance is required for RF applications. Consider the 230 mA current rating and 1.8 Ohm DC resistance limits during circuit design. Verify that the unshielded design does not interfere with nearby sensitive components due to potential magnetic field radiation.

Part Context

This part belongs to the Delevan 103/R series of fixed RF inductors. These components are designed as surface-mount devices suitable for automated PCB assembly. The series offers various inductance values with different tolerance options to support diverse radio frequency circuit requirements.

Replacement Considerations

Check for direct substitutes within the same 103/R series offering identical 4.7 µH inductance and ±1% tolerance. Verify that alternative parts match the 2.54 x 2.54 x 1.91 mm footprint and electrical characteristics such as DC resistance and current rating.