QT532G-18.432MAAJ-T

Overview

The QT532G-18.432MAAJ-T is a quartz crystal resonator manufactured by QST, operating at a nominal frequency of 18.432 MHz. This surface-mount device (SMD) component utilizes a glass-sealed package with dimensions of 5.0 x 3.2 x 1.2 mm. It features a load capacitance of 18 pF and offers a frequency tolerance and stability of ±30 ppm at both 25°C and the -20°C to +70°C range. The unit is designed for reliable performance in compact electronic circuits requiring precise timing signals.

Feature Summary

• Glass-sealed construction for enhanced environmental protection
• Surface-mount design suitable for automated assembly
• Stable frequency performance across industrial temperature ranges

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Procurement Notes

Verify the specific suffix 'MAAJ' against official QST documentation to confirm package type and sealing method. Ensure compatibility with reflow soldering profiles specified in the datasheet. Confirm that the 18 pF load capacitance matches the target circuit design requirements before procurement.

Selection Notes

Select this component when a 18.432 MHz frequency is required with ±30 ppm stability. The 5.0x3.2mm SMD footprint is appropriate for space-constrained designs. Consider the glass seal for applications needing robustness against moisture or contaminants compared to standard epoxy packages.

Part Context

This part belongs to the QT532G series of quartz crystals from QST. The series typically includes various frequencies within the 5.0x3.2mm form factor. The 'MAAJ' suffix indicates specific terminal and sealing characteristics distinct from other variants like 'MBBK' or 'MAAE'.

Replacement Considerations

Direct substitutes include other 18.432 MHz crystals with identical 5.0x3.2mm dimensions, 18pF load capacitance, and ±30ppm stability. Verify pinout and mounting pad layout compatibility before substitution.