402F20411CDR

Crystals Overview

The CTS-Frequency Controls 402F20411CDR is a MHz crystal operating at a fundamental frequency of 20.48 MHz. It features a load capacitance of 18pF and a frequency stability of ±10ppm. The component has an equivalent series resistance (ESR) of 100 Ohms and utilizes a 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm x 0.55mm maximum height. It supports surface mount installation and operates within a temperature range of -20°C to 70°C.

Crystals Feature Summary

• Fundamental mode operation for precise frequency generation
• Compact 4-SMD no-lead surface mount packaging
• Stable performance across industrial temperature ranges

Crystals Applications

• Clock signal generation in digital circuits
• Microcontroller oscillator circuits
• Communication module timing references

Crystals Procurement Notes

Verify the specific load capacitance requirement against the target circuit design, as this component specifies 18pF. Confirm that the 4-SMD footprint matches the PCB layout constraints. Ensure the ±10ppm stability meets the system timing accuracy requirements. Check for any specific handling instructions regarding moisture sensitivity level 1 compliance during assembly processes.

Crystals Selection Notes

Select this component when a 20.48 MHz fundamental frequency is required with moderate stability. The 18pF load capacitance must align with the oscillator circuit's external capacitor values. Consider the 100 Ohm ESR limit for drive level sensitivity. The compact SMD form factor suits space-constrained designs requiring reliable timing sources.

Crystals Part Context

This part belongs to the CTS 402 Series, which covers frequencies from 16MHz to 60MHz. The series offers various load capacitance options and tolerance levels. The 402F20411CDR specifically targets applications needing a standard 20.48 MHz clock source in a small surface-mount package suitable for automated assembly.

Crystals Replacement Considerations

Direct substitutes include other 402 series crystals with identical 20.48 MHz frequency, 18pF load capacitance, and ±10ppm tolerance. Verify pin compatibility and physical dimensions before substitution.