106-472K

Overview

The Delevan 106-472K is a surface-mount RF inductor from the 106 series, featuring an unshielded wirewound construction with an iron core. It provides a nominal inductance of 4.7 µH with a tolerance of ±10%. The component has a maximum DC resistance of 2.3 Ohms and supports a maximum DC current of 200 mA. Key electrical parameters include a minimum Q factor of 41 at 55 MHz and a self-resonant frequency of 55 MHz. The physical dimensions are 3.94 mm in length, 2.79 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded wirewound design utilizing an iron core for stable RF performance
• Surface-mount package suitable for PCB mounting applications
• Optimized for radio frequency signal processing circuits

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF inductors

Procurement Notes

Verify RoHS compliance status as sources indicate non-compliance. Confirm availability as some distributors list this part as discontinued or restricted. Check for specific ordering suffixes if required by the manufacturer. Validate current lead times and minimum order quantities directly with authorized suppliers before finalizing procurement plans.

Selection Notes

Select this component when an unshielded SMD inductor with 4.7 µH inductance is required. Ensure the 200 mA current rating meets the circuit's DC bias requirements. Consider the 2.3 Ohm DCR impact on power loss. Verify that the 55 MHz self-resonant frequency aligns with the operating range. Compare against shielded alternatives if electromagnetic interference mitigation is necessary.

Part Context

This part belongs to the Delevan 106 series of fixed RF inductors. These components are designed for surface-mount technology and utilize wirewound construction. The series offers various inductance values tailored for radio frequency applications, providing reliable performance in compact electronic designs requiring precise inductive characteristics.

Replacement Considerations

Direct substitute: 106-472F (Delevan). Note that the 'F' suffix indicates a tighter 1% tolerance compared to the standard 'K' suffix. Verify if the stricter tolerance requirement fits the design specifications before substitution.