402F54011CJR

Crystals Overview

The 402F54011CJR is a surface-mount crystal oscillator manufactured by CTS-Frequency Controls. It operates at a fundamental frequency of 54 MHz with a load capacitance of 9 pF. The unit features a four-terminal SMD package without leads, designed for automated assembly processes. Key electrical specifications include a frequency stability of ±10 ppm and an equivalent series resistance (ESR) of 60 Ohms. The component is compliant with RoHS standards and is lead-free, ensuring suitability for modern electronic manufacturing environments requiring environmentally friendly materials.

Crystals Feature Summary

• Surface-mount design with no leads for reliable PCB integration
• High frequency stability of ±10 ppm for precise timing applications
• RoHS compliant and lead-free construction

Crystals Applications

• Digital signal processing controller clock sources
• Real-time system timing references
• Embedded microprocessor clock inputs

Crystals Procurement Notes

Verify the specific suffix 'JR' against the manufacturer's current datasheet to confirm the exact load capacitance and tolerance specifications. Ensure the ordering documentation matches the required 54 MHz frequency and 60 Ohm ESR values. Confirm RoHS compliance status if environmental regulations are critical for the target application market.

Crystals Selection Notes

Select this component when a 54 MHz reference with ±10 ppm stability is required in a compact surface-mount form factor. The 9 pF load capacitance must match the oscillator circuit design. Consider the 60 Ohm ESR for impedance matching requirements. This part is suitable for applications demanding high reliability and standardized packaging.

Crystals Part Context

This crystal belongs to the 402F series from CTS-Frequency Controls, which offers various frequency options in a standard 4-SMD no-lead package. The series provides consistent performance across different frequencies, allowing designers to maintain uniform mechanical footprints while adjusting electrical parameters for specific timing needs within digital systems.

Crystals Replacement Considerations

The 402F54011CJT is a comparable variant with identical electrical characteristics but may differ in packaging or supply chain details. Verify that any substitute maintains the 54 MHz frequency, 9 pF load capacitance, and ±10 ppm stability to ensure circuit compatibility.