CTH7F-821K

Fixed Inductors Overview

The CTH7F-821K is a general-purpose power line choke manufactured by Central Technologies. This axial-leaded inductor features a nominal inductance of 820 µH with a tolerance of 10%. It has a maximum DC resistance of 2 Ohms and a current rating of 200 mA. The component operates at a self-resonant frequency of 1 MHz and is housed in a cylindrical radial package measuring 10 mm in diameter and 8 mm in length. It is RoHS3 compliant and designed for use in DC-DC converter applications.

Fixed Inductors Feature Summary

• Axial leaded construction for through-hole mounting
• General-purpose power line filtering capability
• RoHS3 compliant manufacturing standard

Fixed Inductors Applications

• DC-DC converter circuits
• Power line chokes
• General purpose signal filtering

Fixed Inductors Procurement Notes

Verify the specific ordering suffix to ensure compliance with required environmental standards, such as RoHS3. Confirm that the axial lead configuration matches the target PCB layout requirements. Cross-reference the manufacturer part number against official Central Technologies documentation to validate the electrical specifications before finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component when an axial inductor with 820 µH inductance is required for power line applications. Ensure the design accommodates the 200 mA current rating and 2 Ohm maximum DC resistance. Verify that the physical dimensions fit the available board space and that the through-hole mounting method aligns with the assembly process.

Fixed Inductors Part Context

This component belongs to the CTH7F series of power line chokes from Central Technologies. The series offers various inductance values tailored for different power management needs. The CTH7F-821K specifically targets applications requiring moderate inductance with axial leads, distinguishing it from surface-mount alternatives within the broader product portfolio.

Fixed Inductors Replacement Considerations

Direct substitutes include other 820 µH axial inductors with similar current ratings and DC resistance. Verify pin compatibility and physical footprint dimensions before substitution. Consult Central Technologies for recommended alternative part numbers if exact matches are unavailable.