QT252S-19.200MAAE-T

Overview

The QT252S-19.200MAAE-T is a surface-mount quartz crystal manufactured by QST, operating at a fundamental frequency of 19.2 MHz. It features a ±30 ppm frequency tolerance and stability at 25°C, with a load capacitance of 8 pF. The component utilizes a 4-SMD, no-lead package with dimensions of 2.5 mm x 2.0 mm and a maximum height of 0.55 mm. Designed for base mode operation, it exhibits an equivalent series resistance (ESR) of 100 Ohms. This device provides reliable timing solutions for compact electronic designs requiring precise clock signals within standard commercial temperature ranges.

Feature Summary

• Compact 4-SMD no-lead surface mount package design
• High frequency stability with ±30 ppm tolerance
• Optimized for base mode fundamental operation
• Low profile construction suitable for space-constrained applications

Applications

• General purpose clock signal generation in consumer electronics
• Timing reference for microcontroller systems
• Communication interface synchronization circuits
• Digital logic circuit clock sources

Procurement Notes

Verify the specific load capacitance requirement against your circuit design, as this component specifies 8 pF. Confirm that the ±30 ppm stability meets your system's timing accuracy needs. Ensure the 4-SMD no-lead footprint matches your PCB layout constraints. Check for any RoHS compliance documentation if required by your manufacturing standards. Validate thermal performance within your intended operating environment.

Selection Notes

Select this component when a small form factor is critical for the assembly. Consider the 8 pF load capacitance to ensure proper oscillation in your chosen circuit topology. Evaluate the ±30 ppm stability against your system's jitter requirements. Compare the 100 Ohm ESR with your oscillator driver capabilities. Assess the 4-SMD package compatibility with your pick-and-place equipment.

Part Context

This part belongs to the QT252S series of quartz crystals from QST, designed for high-density surface mount applications. The series offers various frequencies and stability options within a standardized 2.5mm x 2.0mm footprint. It serves as a cost-effective timing solution for mass-produced electronic devices where size and performance balance are essential.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify pinout and electrical parameters before considering alternative components from other manufacturers.