QT252S-25.000MAAV-T

Overview

The QT252S-25.000MAAV-T is a surface-mount quartz crystal resonator manufactured by QST. It operates at a fundamental frequency of 25 MHz with a frequency stability of ±30 ppm. The component features a load capacitance of 8 pF and an equivalent series resistance (ESR) of 100 Ohms. It utilizes a 4-SMD, No Lead package configuration with physical dimensions of 2.5 mm x 2.0 mm x 0.55 mm. The device is rated for an operating temperature range of -20°C to +70°C.

Feature Summary

• Seam seal construction for environmental protection
• Surface mount design for automated assembly
• Low profile form factor suitable for space-constrained applications

Applications

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

Procurement Notes

Verify the specific suffix AAV against the manufacturer's current datasheet to confirm pinout and material compliance. Ensure the selected variant matches the required load capacitance and stability specifications for the target circuit design before finalizing procurement orders.

Selection Notes

Select this component when a 25 MHz reference is required in a compact 2.5x2.0 mm footprint. Consider the ±30 ppm stability and 100 Ohm ESR limits relative to the oscillator circuit requirements. Verify that the -20°C to +70°C temperature range meets the operational environment constraints of the end product.

Part Context

This part belongs to the QT252S series of seam-seal crystals from QST. The series offers various frequencies within a standardized small outline package. The 25.000 MA variant specifically targets common microcontroller and communication interfaces requiring standard clock speeds.

Replacement Considerations

Direct substitutes include other manufacturers' 25 MHz crystals in 2.5x2.0mm 4-SMD packages with similar electrical parameters. Verify compatibility regarding load capacitance and drive level before substitution.