QT252S-16.000MAHQ-T

Overview

The QT252S-16.000MAHQ-T is a surface-mount quartz crystal oscillator manufactured by QST. It operates at a fundamental frequency of 16 MHz with a load capacitance of 10 pF. The component features a 4-SMD, No Lead package with dimensions of 2.5 x 2.0 x 0.55 mm. Frequency tolerance is specified at ±30 ppm at 25°C, and frequency stability is maintained within ±30 ppm over the operating temperature range of -40°C to +85°C.

Feature Summary

• Seam seal construction for environmental protection
• Compact surface-mount design suitable for automated assembly
• Stable frequency performance across industrial temperature ranges

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics internal clocks

Procurement Notes

Verify the manufacturer designation carefully, as the model prefix may appear associated with QST in distributor listings while official datasheets often reference TXC Corporation or similar entities for this specific series. Confirm the exact suffix 'MAHQ' matches the required stability and packaging specifications against the official component documentation before procurement.

Selection Notes

Select this component when a 16 MHz reference is required in a compact 2.5x2.0 mm footprint. Ensure the application environment falls within the -40°C to +85°C range to maintain the specified ±30 ppm stability. Verify that the circuit load capacitance matches the 10 pF requirement for accurate frequency operation.

Part Context

This part belongs to the QT252S series of seam-seal quartz crystals. These components are designed for high-volume surface-mount applications requiring reliable timing signals. The series offers various frequency options and stability grades, with this specific model providing a standard 16 MHz output suitable for general-purpose digital logic and communication interfaces.

Replacement Considerations

Direct substitutes include other 16 MHz crystals in the same 2.5x2.0 mm package with identical electrical parameters. Cross-reference models such as those from TXC Corporation with matching suffixes for equivalent stability and load capacitance requirements.