CTS4F-121K

Fixed Inductors Overview

The CTS4F-121K is a shielded axial leaded fixed inductor manufactured by Central Technologies. It features an amorphous magnetic core and offers a nominal inductance of 120 µH with a tolerance of ±10%. The component has a maximum DC resistance of 2.4 Ω and a self-resonant frequency of 11 MHz. It supports a rated current of 311 mA and maintains a quality factor of 65 at the test frequency. The device operates within a temperature range of -55°C to 125°C, utilizing a molded construction for thermal stability.

Fixed Inductors Feature Summary

• Shielded molded construction using amorphous magnetic core material
• Axial through-hole mounting configuration
• Wide operating temperature range from -55°C to 125°C

Fixed Inductors Applications

• General purpose RF filtering
• Signal processing circuits
• Power supply noise suppression

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging specifications. Ensure the procurement documentation matches the required lead length and diameter dimensions. Cross-reference the RoHS compliance status and ECCN classification with the latest product release notes before finalizing purchase orders.

Fixed Inductors Selection Notes

Select this component when a shielded axial inductor with moderate inductance is required for space-constrained PCB layouts. The 120 µH value suits applications needing effective low-frequency filtering without excessive size. Consider the 2.4 Ω DC resistance limit for efficiency requirements and verify that the 311 mA current rating meets the circuit's peak load demands.

Fixed Inductors Part Context

This part belongs to the CTS4F series of shielded mold inductors from Central Technologies. The series utilizes amorphous magnetic cores to provide consistent performance across varying environmental conditions. The axial form factor allows for easy integration into standard through-hole assembly processes used in various electronic equipment manufacturing lines.

Fixed Inductors Replacement Considerations

Direct substitutes include other 120 µH axial inductors with similar shielding and current ratings. Verify pin compatibility and physical dimensions before swapping. Check if alternative manufacturers offer equivalent Q-factor and SRF specifications for critical signal integrity applications.