QT325G-11.0592MAHE-T

Overview

The QT325G-11.0592MAHE-T is a fundamental-mode quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 11.0592 MHz with a frequency tolerance of ±30 ppm across the -20°C to +70°C temperature range. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 150 Ohms. It utilizes a glass-sealed package in a 4-SMD, no-lead configuration with dimensions of 3.2 x 2.5 mm. This specific model variant includes the 'H' suffix indicating the ±30 ppm tolerance specification.

Feature Summary

• Fundamental mode operation simplifies circuit filtering and buffering requirements compared to overtone modes.
• Glass-sealed construction provides environmental stability within the specified operating temperature range.
• Surface-mount design facilitates automated assembly in compact electronic systems.

Applications

• Microcontroller clock sources
• Communication module timing references
• Embedded system oscillators

Procurement Notes

Verify the complete part number including all suffixes to ensure correct tolerance and package specifications. Confirm that the required load capacitance matches the target oscillator circuit design. Check manufacturer documentation for reflow soldering profiles compatible with the glass-sealed package type.

Selection Notes

Select this component when a stable 11.0592 MHz reference is required for digital logic or communication interfaces. Ensure the application environment remains within the -20°C to +70°C operational range defined by the 'H' tolerance suffix. Verify board space constraints align with the 3.2 x 2.5 mm footprint.

Part Context

This component belongs to the QT325G family of quartz crystals from QST, characterized by small form factors suitable for portable electronics. The QT325G series offers various frequency and tolerance options, with the MAHE-T designation specifying the 11.0592 MHz frequency, ±30 ppm tolerance, 12 pF load capacitance, and tape-and-reel packaging format.

Replacement Considerations

Compatible substitutes include other manufacturers' 11.0592 MHz crystals in 3225 packages with similar electrical parameters. Ensure replacement parts maintain equivalent ESR and load capacitance values to preserve oscillator stability. Verify that alternative components support the same operating temperature range and mounting style.