CTH8F-4R7K

Fixed Inductors Overview

The CTH8F-4R7K is a fixed axial leaded inductor from Central Technologies, designed for power line applications. It features an unshielded tubular package with a nominal inductance of 4.7 µH and a maximum DC resistance of 8 mΩ. The component supports a continuous current rating of 4 A and a saturation current of approximately 5.2 A. Operating within a temperature range of -55 °C to 125 °C, it utilizes matte tin terminals and complies with RoHS standards.

Fixed Inductors Feature Summary

• Unshielded tubular construction for general-purpose power line filtering
• Axial leaded termination for through-hole mounting
• High continuous current handling capability

Fixed Inductors Applications

• Power line chokes
• DC-DC converter input/output filtering
• General purpose power supply circuits

Fixed Inductors Procurement Notes

Verify the specific datasheet version for the CTH8F-4R7K to confirm exact saturation current values, as manufacturer documentation may vary between 4.9 A and 5.2 A depending on the revision. Ensure compliance requirements match project specifications, specifically regarding RoHS status and terminal plating material (matte tin). Cross-reference the physical dimensions (0.469" Dia x 0.921" L) with PCB layout constraints before finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component when high current capacity is required for low-inductance power line applications. The 4.7 µH value suits basic ripple reduction where higher inductance is unnecessary. Compare against the CTC5F series if RF performance or lower inductance values are needed. Consider the unshielded design implications for electromagnetic interference in dense layouts.

Fixed Inductors Part Context

The CTH8F series represents Central Technologies' lineup of unshielded axial power inductors. This series is characterized by robust current handling and standard tubular packaging. It serves as a fundamental passive component for power integrity in various electronic systems, distinct from shielded or surface-mount alternatives.

Fixed Inductors Replacement Considerations

Direct substitutes include other 4.7 µH axial power inductors with comparable current ratings. Verify that replacement parts maintain the same axial lead spacing and tubular diameter to ensure mechanical compatibility with existing PCB footprints.