QT325G-38.400MAHE-T

Overview

The QT325G-38.400MAHE-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a standard frequency of 38.4 MHz with a fundamental oscillation mode. The component features a glass-sealed package measuring 3.2mm x 2.5mm in footprint and 0.8mm in height. It supports a load capacitance of 12pF and exhibits an equivalent series resistance of 60 Ohms. The unit provides frequency tolerance and stability of ±30ppm across the operating temperature range of -40°C to +85°C.

Feature Summary

• Glass-sealed construction for environmental protection
• Surface-mount design compatible with automated assembly
• Stable frequency performance across commercial temperature ranges

Applications

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

Procurement Notes

Verify the complete part number against official manufacturer specifications to ensure correct tolerance and packaging configuration. Confirm that the specified load capacitance matches the circuit design requirements. Check for any specific handling instructions related to the glass-sealed package integrity during soldering processes.

Selection Notes

Select this component when a precise 38.4 MHz reference is required in a compact surface-mount form factor. Ensure the application environment stays within the -40°C to +85°C operational range. Verify that the circuit impedance aligns with the 12pF load capacitance and 60 Ohm ESR characteristics for optimal oscillator startup.

Part Context

This model belongs to the QT325G series of quartz crystals, which are characterized by their small 3.2x2.5mm glass-sealed packages. These components are engineered for high reliability in consumer electronics and industrial control systems where space constraints and stable timing are critical design factors.

Replacement Considerations

Direct substitutes include other 38.4 MHz crystals with identical 3.2x2.5mm dimensions and ±30ppm stability. Verify pin compatibility and electrical parameters before swapping manufacturers.