QT532G-24.5676MBBK-T

Overview

The QST QT532G-24.5676MBBK-T is a quartz crystal resonator operating at a nominal frequency of 24.5676 MHz. It features a frequency tolerance and stability of ±30ppm at 25°C, with a load capacitance of 12pF. The component utilizes a glass seal construction within a 5.0x3.1mm surface-mount package (2-SMD, No Lead). It supports fundamental mode operation and is designed for applications requiring precise timing signals in compact electronic systems.

Feature Summary

• Glass seal construction for enhanced environmental durability
• Compact 5.0x3.1mm surface-mount footprint
• High frequency stability of ±30ppm at 25°C

Applications

• Precision clock generation circuits
• RF transceiver timing references
• Embedded microcontroller systems

Procurement Notes

Verify the specific load capacitance requirement of 12pF against the target circuit design to ensure accurate oscillation. Confirm that the 5.0x3.1mm package dimensions are compatible with the PCB layout constraints. Ensure the operating temperature range meets the system's environmental specifications.

Selection Notes

Select this component when a 24.5676 MHz reference with tight ±30ppm stability is required. The 12pF load capacitance dictates the necessary oscillator circuit configuration. Consider the glass seal technology for improved reliability compared to standard ceramic packages in demanding environments.

Part Context

This part belongs to the QT532G series from QST, which offers various frequencies in small surface-mount packages. The MBBK suffix typically indicates specific packaging or tolerance variations within the product line. It serves as a critical passive component for establishing stable clock signals in modern digital electronics.

Replacement Considerations

Direct substitutes must match the 24.5676 MHz frequency, 12pF load capacitance, and ±30ppm stability. Alternative packages like 5.0x3.2mm may require PCB rework. Verify equivalent ESR values and drive level specifications before substitution.