QT532G-14.31818MAHE-T

Overview

The QT532G-14.31818MAHE-T is a surface-mount crystal oscillator manufactured by QST, designed for precise frequency generation in electronic circuits. It operates at a nominal frequency of 14.31818 MHz with a tolerance of ±30 ppm across the commercial temperature range of -20°C to +70°C. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. It utilizes a 2-SMD, no-lead package with dimensions of 5.0 x 3.2 x 1.2 mm, suitable for automated assembly processes requiring compact footprint solutions.

Feature Summary

• Provides stable frequency reference with ±30 ppm tolerance over commercial temperature ranges
• Utilizes compact 2-SMD no-lead surface mount packaging for space-constrained designs
• Engineered for low equivalent series resistance to support efficient circuit operation

Applications

• Clock source generation for microcontrollers and digital logic circuits
• Timing references for communication interfaces and data transmission systems
• Frequency standards for consumer electronics and embedded control systems

Procurement Notes

Verify that the ordering suffix matches the required temperature stability grade, as variations exist within the QT532G family. Confirm package dimensions align with PCB land patterns. Ensure supply chain sources provide authentic components from QST or authorized distributors to guarantee performance specifications are met without deviation.

Selection Notes

Select this component when a 14.31818 MHz reference is required with ±30 ppm stability in commercial environments. Consider the 12 pF load capacitance compatibility with the target oscillator circuit design. Evaluate the 50 Ohm ESR against power consumption requirements. Compare against alternative packages if board space constraints differ from the 5x3.2mm form factor.

Part Context

This part belongs to the QST QT532G series of surface-mount crystals. The series offers various frequency options and stability grades, distinguished by suffix codes indicating temperature ranges and tolerance levels. The 'G' suffix typically denotes specific stability characteristics within the product line, differentiating it from other variants like QT532S.

Replacement Considerations

Direct substitutes include other QT532G models with identical electrical parameters but different frequencies. Cross-referencing with other manufacturers requires matching frequency, load capacitance, ESR, and physical dimensions to ensure functional compatibility.