QT252S-24.000MAAE-T

Overview

The QT252S-24.000MAAE-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It features a 2.5x2.0 mm seam seal package with four solder pads. The unit operates at a fundamental frequency of 24.000 MHz. Stability specifications include ±30 ppm at 25°C and ±30 ppm across the -20°C to +70°C temperature range. The load capacitance is specified as 12 pF, and the equivalent series resistance is typically 100 ohms.

Feature Summary

• Utilizes a compact 2.5x2.0 mm seam seal ceramic package for space-constrained designs
• Provides stable frequency generation with ±30 ppm accuracy over standard commercial temperatures
• Features a four-pad no-lead SMD configuration for automated assembly compatibility

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics control circuits

Procurement Notes

Verify the manufacturer designation carefully, as this component appears in catalogs under both TXC Corporation and QST branding due to corporate relationships. Confirm the specific suffix MAAE-T matches the required 12 pF load capacitance and 100 ohm ESR parameters. Ensure the requested quantity aligns with reel packaging standards, typically 3000 units per reel, when placing orders.

Selection Notes

Select this component when a small form factor is critical for PCB layout efficiency. The 24 MHz frequency suits common processor clock requirements. Verify that the operating environment remains within the -20°C to +70°C range to maintain the specified ±30 ppm stability. Consider the 12 pF load capacitance requirement to ensure proper oscillator circuit design and frequency accuracy.

Part Context

This part belongs to the QT252S series of surface-mount crystals. Variants in this family share the same physical dimensions and sealing technology but differ in frequency, load capacitance, and temperature stability ratings. Other suffixes indicate variations such as different load capacitors or extended temperature ranges.

Replacement Considerations

Direct substitutes must match the 24.000 MHz frequency, 12 pF load capacitance, and 2.5x2.0 mm package size. Cross-reference with other manufacturers offering similar seam seal crystals, ensuring identical pinout and electrical characteristics are maintained for circuit compatibility.