QT532S-14.7456MAAJ-T

Overview

The QT532S-14.7456MAAJ-T is a surface-mount quartz crystal resonator manufactured by QST, designed for precision frequency control in electronic circuits. It operates at a nominal frequency of 14.7456 MHz with a normal temperature frequency tolerance of ±30 ppm. The component features a load capacitance of 18 pF and utilizes a 4-SMD, No Lead package configuration. Physical dimensions are specified as 5.0 mm x 3.2 mm x 0.9 mm. The device supports an operating temperature range from -20°C to +70°C, ensuring reliable performance in standard commercial applications requiring stable clock signals.

Feature Summary

• Provides precise frequency generation at 14.7456 MHz with tight stability tolerances
• Utilizes a compact surface-mount design for automated PCB assembly
• Operates reliably within a defined commercial temperature range

Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing references for communication interfaces such as UART and SPI
• Frequency standards for digital logic circuits and embedded systems

Procurement Notes

Verify the specific suffix codes against official QST documentation to confirm exact electrical parameters and packaging specifications. Ensure that the requested variant matches the required load capacitance and frequency tolerance for the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm authenticity and current availability status before finalizing procurement orders.

Selection Notes

Select this component when a 14.7456 MHz reference is required for SMD-based designs. Consider the 18 pF load capacitance requirement to ensure circuit resonance alignment. Evaluate the ±30 ppm tolerance against system timing budgets. Confirm that the 5032 package size fits within the available board real estate constraints while meeting thermal operating limits.

Part Context

This part belongs to the QT532S series of quartz crystals, characterized by standardized SMD footprints. The series offers various frequency options within the same physical envelope. This specific model provides a common video and data rate frequency point. It serves as a fundamental passive component for establishing base clock frequencies in consumer electronics and industrial control modules.

Replacement Considerations

Compatible substitutes include other manufacturers' 14.7456 MHz crystals in the 5032 SMD package with matching 18 pF load capacitance. Verify equivalent frequency tolerance and operating temperature ranges. Ensure pin compatibility and mechanical dimensions align with existing PCB layouts. Consult official cross-reference guides for direct replacements.