QT532G-12.288MBBK-T

Overview

The QT532G-12.288MBBK-T is a surface-mount quartz crystal manufactured by QST, operating at a fundamental frequency of 12.288 MHz. It features a 50 Ohm equivalent series resistance and a load capacitance of 20 pF. The component utilizes a glass-sealed or ceramic package with dimensions of 5.0 x 3.2 mm in a 2-pin CSMD configuration. Frequency tolerance is specified at ±50 ppm at 25°C, with stability maintained within ±50 ppm across an operating temperature range of -20°C to 70°C.

Feature Summary

• Provides stable oscillation at 12.288 MHz with high frequency accuracy
• Utilizes a compact 2-pin surface mount design for automated assembly
• Maintains consistent performance across standard industrial temperature ranges

Applications

• Clock generation for microcontrollers and digital logic circuits
• Timing references for communication interfaces such as UART and SPI
• Frequency synthesis in consumer electronics and embedded systems

Procurement Notes

Verify the manufacturer designation on official documentation, as this part number appears associated with both TXC Corporation and QST Products LLC in public databases. Ensure the specific datasheet matches the required tolerance and stability specifications before procurement. Confirm RoHS compliance status through the supplier's certified test reports to meet environmental regulations.

Selection Notes

Select this component when a precise 12.288 MHz reference is required for digital timing applications. The 20 pF load capacitance must match the oscillator circuit requirements of the target device. Consider the ±50 ppm stability limit against system timing constraints. The surface mount package facilitates placement on high-density PCBs where space is limited.

Part Context

This crystal belongs to the QT532G series, characterized by its small footprint and standardized electrical parameters. It serves as a fundamental mode resonator for generating clock signals in various electronic assemblies. The series is designed for reliability in mass-produced consumer and industrial devices requiring accurate timekeeping.

Replacement Considerations

Direct substitutes include other 12.288 MHz crystals with identical 5.0x3.2mm SMD packages and 20pF load capacitance. Verify that alternative parts maintain the same ±50 ppm tolerance and operate within the -20°C to 70°C range. Cross-reference pin compatibility and mounting pad layouts to ensure mechanical interchangeability.