QT532S-14.31818MAAJ-T

Overview

The QT532S-14.31818MAAJ-T is a surface-mount quartz crystal resonator manufactured by QST. It operates at a fundamental frequency of 14.31818 MHz with a load capacitance of 18 pF. The device exhibits a frequency stability and tolerance of ±30 ppm. Its equivalent series resistance (ESR) is specified at 40 Ohms. The component is housed in a 4-SMD, no-lead package with dimensions of 5.0 mm x 3.2 mm x 0.9 mm. It supports an operating temperature range from -20°C to +70°C.

Feature Summary

• Fundamental mode operation for precise timing reference
• Surface-mount design compatible with automated assembly processes
• Stable frequency performance within specified industrial temperature limits

Applications

• Embedded communication systems requiring clock synchronization
• Microcontroller-based circuit designs
• Digital signal processing hardware

Procurement Notes

Verify the specific suffix codes against official QST documentation to confirm exact electrical parameters such as ESR and tolerance. Ensure the package dimensions match the target PCB footprint requirements. Confirm that the operating temperature range aligns with the environmental conditions of the intended application before finalizing procurement.

Selection Notes

Select this component when a 14.31818 MHz fundamental frequency is required for digital logic or communication interfaces. The 18 pF load capacitance must match the oscillator circuit design specifications. Consider the ±30 ppm stability requirement relative to system timing accuracy needs. The 4-SMD package size dictates the available board space constraints.

Part Context

This part belongs to the QST QT532S series of surface-mount crystals. The series offers various frequencies and package sizes. The specific model indicates a 14.31818 MHz variant with standard commercial/industrial temperature ratings. It serves as a timekeeping element in electronic circuits.

Replacement Considerations

Direct substitutes include other manufacturers' 14.31818 MHz crystals with identical 18 pF load capacitance, 4-SMD no-lead packaging, and comparable ESR values. Verify pin compatibility and thermal characteristics before substitution.