QT252S-16.000MAHV-T

Overview

The QT252S-16.000MAHV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 16 MHz with a load capacitance of 8 pF. The component features a compact 4-SMD, No Lead package measuring 2.5 mm in length and 2.0 mm in width, with a maximum height of 0.55 mm. Frequency stability is rated at ±30 ppm at 25°C and ±30 ppm across the operating temperature range of -40°C to +85°C. The equivalent series resistance (ESR) is specified as 100 Ohms.

Feature Summary

• Seam seal construction for reliable performance
• Surface-mount design compatible with automated assembly
• Wide industrial temperature range operation

Applications

• Microcontroller clock sources
• Communication module timing circuits
• Consumer electronics signal processing

Procurement Notes

Verify the manufacturer designation on the final datasheet, as this part number may be associated with QST or TXC Corporation depending on the specific production batch. Confirm that the RoHS3 compliance status matches your environmental requirements. Ensure the 4-SMD no-lead footprint dimensions align precisely with your PCB land pattern to avoid soldering defects during reflow processes.

Selection Notes

Select this component when a 16 MHz fundamental mode crystal is required within a 2.5x2.0 mm SMD envelope. The ±30 ppm stability specification suits general-purpose timing applications where high precision is not critical. Consider the 8 pF load capacitance requirement to ensure circuit oscillator compatibility. Evaluate the 100 Ohm ESR against your driver strength limitations.

Part Context

This component belongs to the QT252S series of seam-seal quartz crystals. The series offers various frequency options within a standardized small outline package. These devices are engineered for cost-effective mass production while maintaining consistent electrical characteristics across different manufacturing lots.

Replacement Considerations

The QT252S-16.000MAAV-T is documented as a parameter-equivalent substitute. Verify pinout compatibility and exact dimensional tolerances before substitution.