402F540XXCDR

Crystals Overview

The CTS-Frequency Controls 402F540XXCDR is a surface-mount MHz crystal resonator designed for frequency control applications. It operates at a fundamental frequency of 54 MHz with a frequency stability of ±15 ppm. The component features an 18 pF load capacitance and a maximum series resistance of 60 Ohms. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm. The device supports an operating temperature range of -20°C to +70°C and complies with RoHS3 standards.

Crystals Feature Summary

• Surface-mount design for automated assembly
• High frequency stability of ±15 ppm
• Compact 4-SMD no-lead package format

Crystals Applications

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

Crystals Procurement Notes

Verify the specific suffix (CDR vs CDT) against the Bill of Materials to ensure correct packaging configuration. Confirm that the ±15 ppm stability meets system timing requirements. Check RoHS3 compliance status if restricted substances are prohibited. Ensure the 18pF load capacitance matches the oscillator circuit design specifications before procurement.

Crystals Selection Notes

Select this component when a 54 MHz reference is required in space-constrained designs. The 4-SMD package facilitates high-volume surface mount technology processes. Consider the ±15 ppm tolerance relative to system jitter budgets. Verify the -20°C to +70°C temperature range aligns with the intended operational environment constraints.

Crystals Part Context

This part belongs to the CTS 402 Series of surface-mount crystals. The series offers various frequencies and packages for general-purpose timing applications. The 402F540XXCDR specifically targets the 54 MHz segment with standard stability metrics. It serves as a direct replacement for legacy through-hole or larger SMD crystals where footprint reduction is necessary.

Crystals Replacement Considerations

Direct substitutes include other 54 MHz ±15 ppm crystals in 2.00mm x 1.60mm 4-SMD packages from manufacturers like ECS or TXC. Verify equivalent electrical parameters including load capacitance and ESR. Ensure mechanical footprint compatibility for PCB rework scenarios.