4307-186K

Fixed Inductors Overview

The Delevan 4307-186K is a fixed axial leaded RF inductor featuring a molded shielded coil construction. It provides an inductance of 18 mH with a tolerance of 10%. The component supports a maximum DC current of 41 mA and has a maximum DC resistance of 225 Ohms. Designed for through-hole PCB mounting, it utilizes ferrite core material within a tubular package measuring 11.35 mm in length and 5.004 mm in diameter. The device operates reliably within a temperature range of -55 °C to 125 °C.

Fixed Inductors Feature Summary

• Molded shielded coil design minimizes electromagnetic interference
• Axial lead termination facilitates standard through-hole PCB integration
• Ferrite core construction ensures stable performance across wide temperature ranges

Fixed Inductors Applications

• RF signal filtering circuits
• General purpose inductive applications
• Shielded radio frequency choke implementations

Fixed Inductors Procurement Notes

Verify the specific manufacturer ordering suffixes and RoHS compliance status directly with API Delevan or authorized distributors before procurement. Confirm that the 10% tolerance variant matches the circuit requirements, as other precision options exist within the series. Ensure the axial lead dimensions align with the target PCB layout specifications.

Fixed Inductors Selection Notes

Select this component when high inductance values are required in a compact shielded form factor. The 18 mH value suits low-frequency RF chokes where magnetic shielding is critical to prevent crosstalk. Consider the 41 mA current limit and 225 Ohm resistance to ensure compatibility with the intended bias conditions and impedance matching networks.

Fixed Inductors Part Context

This part belongs to the 4307/R series of molded shielded RF coils manufactured by API Delevan. The series offers various inductance values with different tolerances and current ratings, all sharing a consistent physical footprint. This specific model represents a higher inductance option within the axial leaded portfolio, designed for specialized RF filtering needs.

Fixed Inductors Replacement Considerations

Cross-reference with 4307R-186K for potential equivalent specifications. Verify that any substitute maintains the 18 mH inductance, 10% tolerance, and identical physical dimensions to ensure board fitment without modification.