CTS4F-821K

Fixed Inductors Overview

The CTS4F-821K is a fixed axial inductor manufactured by Central Technologies. It features an 820 µH nominal inductance with a ±10% tolerance. The component has a maximum DC resistance of 10 Ω and a rated current of 151 mA. Its self-resonant frequency is specified at 4.8 MHz. The device utilizes a shielded molded core constructed from amorphous magnetic material, ensuring electromagnetic interference reduction. It operates within a temperature range of -55°C to 125°C and complies with RoHS standards.

Fixed Inductors Feature Summary

• Shielded molded construction using amorphous magnetic core for EMI suppression
• Axial leaded package design for through-hole mounting applications
• Wide operating temperature range supporting -55°C to 125°C environments

Fixed Inductors Applications

• General purpose RF inductor circuits
• Signal filtering in electronic systems
• Power supply noise suppression

Fixed Inductors Procurement Notes

Verify the specific suffix 'K' corresponds to the required ±10% tolerance when ordering. Confirm that the 10 Ω maximum DC resistance and 151 mA rated current meet the target circuit requirements. Ensure the axial form factor fits the PCB layout constraints. Check for RoHS compliance status if environmental regulations apply to the final assembly. Cross-reference the 4.8 MHz self-resonant frequency against the operational bandwidth needs.

Fixed Inductors Selection Notes

Select this component when a shielded axial inductor with 820 µH inductance is required. The 151 mA current rating defines the maximum continuous current capacity. Consider the 10 Ω DC resistance impact on voltage drop in series configurations. The wide temperature range makes it suitable for industrial or automotive environments. Verify physical dimensions against available board space before integration.

Fixed Inductors Part Context

The CTS4F-821K belongs to the CTS4F series of shielded axial inductors from Central Technologies. This series is characterized by molded amorphous cores designed to minimize external magnetic fields. Similar parts in the family include CTS4F-121K and CTS4F-152K, which share the same physical package and shielding technology but differ in inductance values and associated electrical parameters.

Fixed Inductors Replacement Considerations

Direct substitutes must match the 820 µH value, ±10% tolerance, and axial package. Components like CTS3-821J offer similar inductance but differ in tolerance (±5%) and may lack RoHS compliance. Verify that any replacement maintains the 10 Ω DCR limit and 151 mA current rating to ensure circuit compatibility.