QT252S-12.000MAAE-T

Overview

The QT252S-12.000MAAE-T is a surface-mount quartz crystal resonator manufactured by QST, designed for precision timing applications. It operates at a nominal frequency of 12 MHz and utilizes a 4-SMD, no lead package with dimensions of 2.5 x 2.0 mm. The component features a seam seal construction, providing robust environmental protection. Frequency tolerance is specified at ±30 ppm at 25°C and ±30 ppm over the industrial temperature range of -20°C to +70°C. The load capacitance is rated at 8 pF, ensuring compatibility with standard oscillator circuits.

Feature Summary

• Seam seal construction for enhanced environmental durability
• Compact 2.5 x 2.0 mm surface-mount footprint
• Stable frequency performance across defined temperature ranges

Applications

• Microcontroller clock sources
• Communication module timing
• Consumer electronics oscillators

Procurement Notes

Verify the manufacturer designation carefully, as this specific part number appears in listings associated with both QST and TXC Corporation. Confirm the exact stability specifications and temperature range against the official datasheet provided by the supplier. Ensure the package type matches the required PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a 12 MHz reference signal is required in space-constrained designs. The 8 pF load capacitance must match the oscillator circuit requirements. Consider the ±30 ppm tolerance if higher precision is needed, or evaluate alternative models within the QT252S series for different frequency or stability specifications.

Part Context

This component belongs to the QT252S series of surface-mount crystals. The series offers various frequencies and stability options in a standardized small outline package. The specific model provides a balance between size and performance suitable for portable devices.

Replacement Considerations

Check equivalent part numbers from other manufacturers offering 12 MHz crystals in 2.5x2.0mm packages with 8pF load capacitance. Verify pin compatibility and electrical parameters before substitution.