QT252S-27.000MAAE-T

Overview

The QT252S-27.000MAAE-T is a surface-mount quartz crystal resonator manufactured by QST Products, LLC. It operates at a fundamental frequency of 27.000 MHz and utilizes a 4-SMD, No Lead package with dimensions of 2.5 x 2.0 x 0.55 mm. The component features a load capacitance of 12 pF and an equivalent series resistance of 100 Ohms. Frequency stability is rated at ±30 ppm across the operating temperature range of -20°C to +70°C, with a tolerance of ±30 ppm at 25°C.

Feature Summary

• Surface-mount quartz crystal design for compact PCB integration
• High frequency stability suitable for precision timing applications
• Robust construction in a small form factor package

Applications

• Precision timing circuits requiring stable reference frequencies
• Compact electronic devices necessitating small footprint components
• Consumer electronics utilizing 27 MHz clock signals

Procurement Notes

Verify the specific suffix 'MAAE' against official QST documentation to confirm exact tolerance and temperature specifications. Ensure the required load capacitance matches the target circuit design. Confirm availability through authorized distributors as stock levels fluctuate. Cross-reference the datasheet for reflow soldering profiles to prevent thermal damage during assembly.

Selection Notes

Select this component when a 27 MHz reference is required in a space-constrained environment. The ±30 ppm stability meets general consumer electronics needs but may be insufficient for high-precision communication systems requiring tighter tolerances. Verify that the 12 pF load capacitance aligns with the oscillator circuit's input requirements to ensure accurate frequency generation.

Part Context

This part belongs to the QT252S family of surface-mount crystals from QST Products. The series offers various frequency options within the same 2.5x2.0 mm package. The QT252S-27.000MAAE-T specifically targets applications needing a standard 27 MHz clock source with moderate stability requirements in a low-profile SMD format.

Replacement Considerations

The QT252S-27.000MAHE-T is a documented substitute with identical package dimensions and similar electrical characteristics. Other compatible alternatives include parts from manufacturers like Suntsu offering the same SMD2520-4P footprint. Verify that any replacement maintains the 12 pF load capacitance and 27 MHz frequency.