QT252S-14.31818MAAE-T

Overview

The QT252S-14.31818MAAE-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 14.31818 MHz with a load capacitance of 12 pF. The component features a seam seal package with dimensions of 2.5 x 2.0 mm and a height of 0.55 mm. Frequency tolerance and stability are specified at ±30 ppm at 25°C and ±30 ppm over the operating temperature range of -20°C to +70°C.

Feature Summary

• Seam seal construction for environmental protection
• Surface-mount design for automated assembly
• Stable frequency performance within tight tolerance limits

Applications

• Embedded communication systems
• DSP controller clock sources
• Real-time system timing references

Procurement Notes

Verify manufacturer designation as QST or TXC depending on supply chain source. Confirm package dimensions match 2.5x2.0mm footprint requirements. Ensure temperature range specifications align with operational environment constraints before integration into final designs.

Selection Notes

Select this component when a 14.31818 MHz reference is required in compact surface-mount layouts. Consider the ±30 ppm tolerance for precision timing needs. Evaluate thermal stability requirements against the -20°C to +70°C operating range to ensure reliable performance under specific environmental conditions.

Part Context

This part belongs to the QT252S series of quartz crystals, characterized by small form factor and high reliability. Similar variants include different frequencies such as 12.000 MHz or 48.000 MHz within the same physical package family, allowing for standardized PCB footprints across multiple product lines.

Replacement Considerations

Compatible substitutes may include other 14.31818 MHz crystals in 2.5x2.0 mm packages from manufacturers like TXC Corporation, provided electrical parameters and pin configurations remain identical.