402F400XXCKT

Crystals Overview

The CTS-Frequency Controls 402F400XXCKT is a surface-mount MHz crystal designed for fundamental operating mode applications. It operates at a nominal frequency of 40 MHz with a frequency stability and tolerance of ±15ppm. The component features a load capacitance of 8pF and an equivalent series resistance (ESR) of 60 Ohms. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm and a maximum seated height of 0.55mm. The device supports an operating temperature range of -20°C to 70°C and complies with RoHS3 standards.

Crystals Feature Summary

• Fundamental mode operation ensures precise frequency generation for digital circuits.
• Compact 4-SMD no-lead package facilitates automated surface-mount assembly.
• High frequency stability of ±15ppm maintains signal integrity in timing applications.

Crystals Applications

• Microcontroller clock sources
• Communication interface timing
• Digital logic circuit synchronization

Crystals Procurement Notes

Verify the specific suffix 'CKT' against official CTS documentation to confirm the exact load capacitance and tolerance specifications. Ensure compatibility with the target PCB footprint dimensions of 2.00mm x 1.60mm. Confirm that the operating temperature range meets the environmental requirements of the final assembly. Check for current availability status as distribution channels may vary.

Crystals Selection Notes

Select this component when a 40 MHz fundamental crystal with 8pF load capacitance is required. The 60 Ohm ESR must match the oscillator circuit design constraints. Consider the ±15ppm stability requirement against system timing budgets. The surface-mount form factor is suitable for high-density board layouts where space is limited compared to through-hole alternatives.

Crystals Part Context

This part belongs to the CTS 402 series of surface-mount crystals. The series offers various frequency codes and package options tailored for general-purpose frequency control. The 402 series is characterized by mature manufacturing processes providing reliable performance for standard digital timing needs within consumer and industrial electronics.

Crystals Replacement Considerations

Direct substitutes include other 40 MHz SMD crystals with identical 8pF load capacitance and similar physical dimensions. Verify that alternative parts meet the same ±15ppm stability and 60 Ohm ESR specifications. Ensure the replacement component supports the same 4-SMD no-lead package type for mechanical interchangeability.