402F54012IAR

Crystals Overview

The CTS-Frequency Controls 402F54012IAR is a surface-mount quartz crystal resonator operating at a fundamental frequency of 54 MHz. It features a frequency tolerance of ±10 ppm and stability of ±20 ppm, with a load capacitance of 10 pF and an equivalent series resistance (ESR) of 60 Ohms. The component utilizes a 4-SMD, no-lead package measuring 1.6 mm x 1.2 mm x 0.55 mm. Designed for base mode operation, it supports a temperature range of -40°C to +85°C and complies with RoHS3 standards.

Crystals Feature Summary

• Surface-mount design in a compact 4-SMD no-lead package
• High frequency stability with ±10 ppm tolerance
• Base mode operation for precise timing applications
• Compliant with RoHS3 environmental regulations

Crystals Applications

• Precision clock signal generation in digital circuits
• Microcontroller and processor system clocks
• Communication interface timing references
• Embedded systems requiring stable frequency sources

Crystals Procurement Notes

Verify the specific ordering suffix to ensure correct load capacitance and packaging configuration. Confirm that the 402F54012IAR variant matches the required 10 pF load capacitance and 60 Ohm ESR specifications for the target circuit design. Check current availability status as supply levels may vary by distributor.

Crystals Selection Notes

Select this component when a 54 MHz fundamental frequency with tight ±10 ppm tolerance is required. Ensure the application circuit provides the specified 10 pF load capacitance to maintain accuracy. Consider the 60 Ohm ESR value for oscillator drive level calculations to prevent over-driving the crystal.

Crystals Part Context

This part belongs to the CTS 402F series of high-performance surface-mount crystals. The series offers various frequencies and package sizes optimized for space-constrained electronics. The 402F54012IAR specifically targets applications needing reliable 54 MHz timing with standard SMD footprint compatibility.

Crystals Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include 402F54012IDR and 402F54012IJR from CTS-Frequency Controls. Verify that alternative parts match the 10 pF load capacitance and 60 Ohm ESR requirements before substitution.