4470R-47H

Fixed Inductors Overview

The Delevan 4470R-47H is a fixed axial leaded RF inductor from the 4470/R series. It features a molded unshielded construction with an inductance of 6.8 mH and a tolerance of ±3%. The component has a maximum DC resistance of 67 Ohms and a rated current of 85 mA. Its self-resonant frequency is 520 kHz, measured at a test frequency of 250 kHz. Physical dimensions are 7.87 mm diameter by 23.11 mm length. It operates within a temperature range of -55°C to 125°C.

Fixed Inductors Feature Summary

• Molded unshielded coil design for RF applications
• Axial through-hole mounting style
• High Q factor performance at specified frequencies

Fixed Inductors Applications

• RF circuits
• Filter networks
• Impedance matching

Fixed Inductors Procurement Notes

Verify RoHS compliance status as documentation indicates non-compliance. Confirm package quantity per reel, which may vary by distributor (e.g., 500 or 800 units). Ensure ordering suffixes match required tolerance and packaging specifications. Check lead times as availability varies.

Fixed Inductors Selection Notes

Select this part for high-inductance RF applications requiring axial leads. Compare DCR and rated current against circuit requirements. Verify self-resonant frequency suitability for target operating bands. Consider physical size constraints relative to PCB layout.

Fixed Inductors Part Context

Part of the Delevan 4470/R series of molded unshielded RF inductors. This series offers various inductance values with axial leads. The 4470R-47H specifically provides 6.8 mH inductance. Similar parts include 4470-48H and 4470R-17H variants within the same family.

Fixed Inductors Replacement Considerations

Direct substitutes include other 4470 series parts with similar electrical characteristics. Verify equivalent inductance, tolerance, and current ratings before substitution.