QT325S-19.200MAHV-T

Overview

The QT325S-19.200MAHV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 19.2 MHz with a standard load capacitance of 8 pF. The component exhibits a frequency tolerance of ±30 ppm at 25°C and maintains a stability of ±30 ppm across the operating temperature range of -40°C to +85°C. It features an equivalent series resistance (ESR) of 50 Ohms and utilizes a glass-sealed package with dimensions of 3.2 x 2.5 x 0.7 mm.

Feature Summary

• Glass-sealed surface-mount construction for environmental protection
• High-frequency stability within specified industrial temperature ranges
• Standardized 8 pF load capacitance compatibility

Applications

• Microcontroller clock sources
• Communication module timing references
• Embedded system oscillators

Procurement Notes

Verify the specific suffix HV against official QST documentation to confirm package type and sealing method. Ensure the load capacitance requirement matches the target circuit design. Confirm the operating temperature range aligns with the intended application environment before procurement.

Selection Notes

Select this component when a 19.2 MHz reference is required in a compact SMD form factor. Consider the 8 pF load capacitance for oscillator circuit tuning. Evaluate the ±30 ppm stability against system jitter requirements. Compare ESR specifications with driver circuit capabilities.

Part Context

This part belongs to the QT325S series of quartz crystals from QST. The series offers various frequencies and packages optimized for space-constrained electronics. QST specializes in timing devices, providing components for consumer and industrial electronics markets.

Replacement Considerations

Direct substitutes must match the 19.2 MHz frequency, 8 pF load capacitance, and 3.2x2.5mm footprint. Verify equivalent ESR and stability ratings from alternative manufacturers.