103R-472F

Overview

The Delevan 103R-472F 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 200 mA. The component exhibits a minimum Q factor of 41 and a self-resonant frequency of 55 MHz. Its physical dimensions are 3.94 mm in length, 2.79 mm in width, and 1.91 mm in height. The device utilizes standard SMD/SMT terminations and is packaged in bulk quantities.

Feature Summary

• Unshielded construction for minimal magnetic interference
• High precision ±1% inductance tolerance
• Optimized for RF circuit applications

Applications

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

Procurement Notes

Verify the specific manufacturer datasheet for the 103R-472F to confirm current availability status, as this part number may be subject to discontinuation or limited supply conditions. Ensure that the bulk packaging format aligns with your assembly line requirements. Cross-reference the electrical parameters against your schematic to guarantee compatibility with the target RF frequency range and current load constraints before finalizing procurement decisions.

Selection Notes

Select the 103R-472F when high inductance accuracy is required for RF filtering or tuning applications. The 4.7 µH value combined with a low self-resonant frequency of 55 MHz makes it suitable for lower RF bands. Consider the 200 mA current rating and 1.8 Ohm DCR to ensure thermal stability within the circuit. Compare against other series if higher current handling or different impedance characteristics are needed.

Part Context

This component belongs to the Delevan 103R series of fixed RF inductors designed for surface-mount technology. The series offers various inductance values with tight tolerances to support precise RF circuit designs. The 103R-472F specifically provides a higher inductance value compared to lower nanohenry variants in the same family, catering to different resonant frequency requirements in RF hardware.

Replacement Considerations

Publicly confirmed substitute part numbers for the 103R-472F are not available in the provided documentation. Verify cross-references through official manufacturer channels or authorized distributors to identify compatible alternatives with matching electrical specifications and footprint dimensions.