CTFCF-681K

Fixed Inductors Overview

The CTFCF-681K is a fixed wirewound inductor from Central Technologies, designed for general-purpose applications. It features an unshielded drum core construction with radial vertical cylinder mounting. The component provides a nominal inductance of 680 µH with a tolerance of 10%. Key electrical specifications include a maximum DC resistance of 5.9 Ohms and a rated current of 290 mA. The self-resonant frequency is specified at 790 kHz, with a minimum quality factor of 45 at that frequency. It operates within a temperature range of -55 °C to +125 °C.

Fixed Inductors Feature Summary

• Unshielded drum core design reduces cost while maintaining performance
• Radial vertical package facilitates through-hole PCB mounting
• Conforms to RoHS standards for environmental compliance

Fixed Inductors Applications

• RF choke circuits
• Power filtering in electronic modules
• General-purpose signal processing

Fixed Inductors Procurement Notes

Verify the specific datasheet version for the CTFCF-681K to confirm exact dimensional tolerances and thermal characteristics. Ensure the procurement source provides official documentation from Central Technologies or authorized distributors. Cross-reference the part number suffix 'K' to confirm the 10% tolerance rating matches the application requirements before finalizing orders.

Fixed Inductors Selection Notes

Select this component when a high-inductance value is required in a radial through-hole format. The unshielded nature makes it suitable for applications where magnetic interference is not critical. Compare the 290 mA current rating against peak load currents to ensure reliability. Consider the 5.9 Ohm DC resistance impact on power loss in series configurations.

Fixed Inductors Part Context

This part belongs to the CTFCF series of flat coil inductors manufactured by Central Technologies. The series spans a wide range of inductance values from 1.0 µH to 10,000 µH. The CTFCF-681K represents the higher end of the inductance spectrum within this radial package family, offering robust performance for power and RF applications requiring stable inductive properties.

Fixed Inductors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative manufacturers by matching the 680 µH inductance, 290 mA current rating, 5.9 Ohm DCR, and radial lead spacing dimensions.