402F500XXCKR

Crystals Overview

The 402F500XXCKR is a 50 MHz fundamental mode crystal resonator manufactured by CTS-Frequency Controls. It features a frequency stability and tolerance of ±15ppm with an equivalent series resistance (ESR) of 60 Ohms. The component utilizes an 8pF load capacitance and is housed in a compact 4-SMD, No Lead package measuring 2.00mm x 1.60mm x 0.55mm maximum height. Designed for surface mount installation, it operates within a temperature range of -20°C to +70°C and complies with RoHS3 standards.

Crystals Feature Summary

• Fundamental mode operation at 50 MHz
• Compact 4-SMD no-lead surface mount footprint
• ±15ppm frequency stability and tolerance
• RoHS3 compliant construction

Crystals Applications

• General purpose clock signal generation
• Microcontroller oscillator circuits
• Communication interface timing references
• Embedded system frequency control

Crystals Procurement Notes

Verify the specific load capacitance requirement against the target circuit design, as datasheet listings vary between 8pF and 9pF for this part number prefix. Confirm that the ±15ppm stability meets the system's jitter and phase noise specifications. Ensure the 60 Ohm ESR is compatible with the oscillator driver strength to prevent overdriving or failure to start. Check for updated availability status as supply conditions may change.

Crystals Selection Notes

Select this component when a 50 MHz fundamental resonance is required in a small surface-mount form factor. The 8pF load capacitance suits circuits designed for lower capacitive loading compared to 10pF variants. Consider the ±15ppm initial tolerance for applications requiring moderate precision without the cost of higher-grade crystals. The 4-SMD package allows for automated assembly processes.

Crystals Part Context

This part belongs to the 402 Series of MHz crystals from CTS-Frequency Controls. The series offers various frequencies and load capacitances in standardized SMD packages. The 402F500XXCKR specifically targets the 50 MHz segment with mid-range stability requirements. It shares physical dimensions with other members of the 402 family but differs in electrical parameters such as load capacitance and tolerance.

Crystals Replacement Considerations

Direct substitutes include 402F50011CAT and 402F50033CKR, though these differ in load capacitance (10pF and 8pF respectively) and tolerance (±10ppm and ±30ppm). Verify circuit compatibility before swapping, as changes in load capacitance affect oscillation frequency and stability.