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The QT532G-24.576MAHE-T is a surface-mount quartz crystal manufactured by QST. It operates at a fundamental frequency of 24.576 MHz with a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. The component exhibits a frequency stability and tolerance of ±30 ppm. Designed for base mode operation, it features a 2-SMD, no-lead package measuring 5.00 mm in length, 3.20 mm in width, and a maximum height of 1.35 mm. The device supports an operating temperature range from -40°C to +85°C.
Verify the specific suffix 'HE' against official QST documentation to confirm pin configuration and material specifications. Ensure the selected variant matches the required load capacitance and ESR values for the target circuit design. Confirm availability status as distribution channels may list obsolete or alternative stock.
Select this component when a 24.576 MHz reference with ±30 ppm stability is required in a compact 5.0x3.2mm footprint. Consider the 50 Ohm ESR limit during oscillator circuit design to ensure proper startup conditions. Evaluate thermal requirements against the -40°C to +85°C specification for the intended application environment.
This part belongs to the QT532G series of surface-mount crystals from QST. The series offers various frequency options within a standardized 2-SMD package form factor. These components are designed to replace older through-hole or larger surface-mount crystals in modern electronic designs requiring reduced board space.
Public confirmed substitute part numbers include 445I33A24M57600, 445I33B24M57600, 445I33J24M57600, and 445I33L24M57600 from CTS-Frequency Controls.