402F2041XIDT

Crystals Overview

The CTS-Frequency Controls 402F2041XIDT is a parallel fundamental quartz crystal operating at a nominal frequency of 20.48 MHz. It features a frequency tolerance of ±10 ppm and stability of ±15 ppm. The component utilizes an AT-cut strip design housed in a hermetic ceramic surface mount package with four pins. Physical dimensions are 2.0 mm x 1.6 mm x 0.55 mm, weighing approximately 3.9 mg. It supports a load capacitance of 18 pF and has a series resistance of 100 Ω. The drive level is specified at 10 µW. Operating temperature range extends from -40°C to +105°C. Aging rate is 3 ppm per year maximum.

Crystals Feature Summary

• Hermetic ceramic surface mount construction for environmental protection
• AT-cut strip crystal design ensuring high frequency stability
• Sub-miniature form factor suitable for dense PCB layouts
• Fundamental mode operation for precise timing applications

Crystals Applications

• Precision timing circuits in microcontroller systems
• Communication equipment requiring stable clock sources
• Industrial control systems operating in wide temperature ranges
• Automotive electronics demanding reliable frequency references

Crystals Procurement Notes

Verify the specific suffix code against official CTS documentation to confirm exact electrical parameters, as variations exist within the 402F204xx series. Ensure compatibility with existing circuit load capacitance requirements before integration. Confirm RoHS compliance status through current manufacturer declarations. Cross-reference part numbers carefully to avoid confusion with similar models having different tolerances or packaging options.

Crystals Selection Notes

Select this component when a 20.48 MHz reference with ±10 ppm tolerance is required in a sub-miniature SMD package. Consider the hermetic ceramic package for harsh environments where moisture resistance is critical. Evaluate the -40°C to +105°C operating range against application thermal profiles. Compare ESR and drive level specifications with oscillator circuit capabilities to ensure proper startup and sustained oscillation.

Crystals Part Context

This part belongs to the CTS 402 Series of sub-miniature surface mount crystals. The series offers various frequencies between 16 MHz and 96 MHz in a consistent 2.0 x 1.6 mm footprint. These components are designed for applications requiring high reliability and small size. The 402F2041XIDT specifically targets precision timing needs within this family.

Crystals Replacement Considerations

Direct substitutes include other 402 series variants with matching 20.48 MHz frequency, 18 pF load capacitance, and ±10 ppm tolerance. Verify physical dimensions and pin configuration match for direct replacement. Check if alternative suffixes offer identical electrical characteristics or improved availability.