QT252S-26.000MAAV-T

Overview

The QT252S-26.000MAAV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 26 MHz with a load capacitance of 8 pF. The component features a 4-SMD, No Lead package and exhibits an equivalent series resistance of 100 Ohms. Frequency tolerance is specified at ±30 ppm at 25°C and ±30 ppm over the temperature range of -20°C to 70°C. The physical dimensions are 2.5 mm x 2.0 mm x 0.55 mm.

Feature Summary

• Seam seal construction utilizing ceramic materials for enhanced stability
• Surface-mount design compatible with automated assembly processes
• Defined load capacitance requirements for precise oscillator circuit integration

Applications

• Clock signal generation in microcontroller systems
• Frequency reference sources for communication modules
• Timing circuits in consumer electronic devices

Procurement Notes

Verify the manufacturer designation carefully, as this part number appears in catalogs associated with both QST and TXC Corporation. Confirm that the specific electrical parameters, particularly the load capacitance of 8 pF and the temperature range of -20°C to 70°C, match your circuit requirements. Ensure the package type is correctly identified as 4-SMD, No Lead to guarantee compatibility with your PCB footprint and reflow soldering profile.

Selection Notes

Select this component when a 26 MHz reference is required with moderate stability specifications. The 8 pF load capacitance dictates the external capacitor values needed in the oscillator circuit. Consider the 100 Ohm ESR limit for driver level constraints. The -20°C to 70°C operating range suits general commercial applications rather than industrial environments requiring wider thermal tolerance.

Part Context

This crystal belongs to the QT252S series, characterized by its compact 2.5x2.0 mm seam seal package. The series offers various frequency options and tolerance grades. The MAAV suffix typically denotes specific electrical characteristics including the 8 pF load capacitance and the commercial temperature range. This form factor allows for high-density board layouts in portable electronics.