CT0402CSF-40NG

Fixed Inductors Overview

The CT0402CSF-40NG is a surface-mount wire-wound chip inductor manufactured by Central Technologies. It features a ceramic core and operates within an ambient temperature range of -40°C to +125°C. The component has an inductance value of 40 nH with a tolerance of ±2%. Key electrical characteristics include a self-resonant frequency (SRF) of 2 MHz, a DC resistance (DCR) of 0.44 Ω, and a quality factor (Q) of 24. The maximum operating current is rated at 320 mA. The physical dimensions are 1.0 mm in length, 0.68 mm in width, and 0.55 mm in height.

Fixed Inductors Feature Summary

• Wire-wound construction on a ceramic core for stable inductance
• Compact 0402 surface-mount package design
• High self-resonant frequency capability

Fixed Inductors Applications

• RF circuit filtering
• Power supply input/output stages
• Signal integrity conditioning

Fixed Inductors Procurement Notes

Verify the specific manufacturer datasheet for the CT0402CSF-40NG to confirm RoHS compliance status and detailed reliability test results. Ensure that the supplier provides traceable documentation matching the part number exactly. Cross-reference the DCR and Q values against the official specification sheet to guarantee performance consistency for your specific application requirements.

Fixed Inductors Selection Notes

Select this component when a compact, high-Q inductor is required for RF applications. The 40 nH value suits high-frequency filtering needs. Consider the 320 mA current rating and 0.44 Ω DCR for power loss calculations. The wide temperature range supports operation in demanding environments. Compare against multilayer alternatives if higher current handling or different size constraints are necessary.

Fixed Inductors Part Context

This inductor belongs to the CT0402CSF series from Central Technologies, which offers various inductance values in the 0402 footprint. The series utilizes wire-wound technology on ceramic cores, distinguishing it from standard multilayer chip inductors. This construction method typically provides better Q factors and lower DCR for small form factors, making it suitable for precision RF and communication device designs.

Fixed Inductors Replacement Considerations

Direct substitutes must match the 40 nH inductance, 0402 package, and similar SRF and current ratings. Verify compatibility with existing PCB footprints and thermal management strategies. Consult manufacturer cross-reference lists for equivalent parts from other suppliers offering wire-wound ceramic-core technology.