QT325S-28.224MAGQ-T

Overview

The QST QT325S-28.224MAGQ-T is a glass-sealing crystal oscillator designed for surface-mount applications. It operates at a nominal frequency of 28.224 MHz with a load capacitance of 10 pF. The component features a frequency tolerance of ±30 ppm and a stability of ±50 ppm. It utilizes an SMD/SMT package measuring 3.2 mm in length, 2.5 mm in width, and 0.7 mm in height. The equivalent series resistance (ESR) is specified at 50 Ohms, with a maximum drive level of 1 mW. The device is qualified under the AEC-Q200 standard and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• AEC-Q200 qualified for automotive reliability standards
• Glass-sealing construction for enhanced environmental protection
• Compact 3.2x2.5 mm surface-mount footprint

Applications

• Automotive electronic systems
• Clock signal generation in microcontrollers
• Communication interface circuits

Procurement Notes

Verify the authenticity of the QT325S-28.224MAGQ-T components by checking for official manufacturer markings and valid certification documents. Ensure that the received parts match the specific AEC-Q200 qualification requirements. Confirm that the packaging integrity remains intact to prevent damage to the delicate glass-sealed crystal structure during handling and installation.

Selection Notes

Select this component when a precise 28.224 MHz reference is required for automotive-grade applications. The choice depends on the necessity for AEC-Q200 compliance and the specific physical constraints of the 3.2x2.5 mm SMD package. Consider the 10 pF load capacitance requirement to ensure proper circuit oscillation and frequency accuracy within the specified temperature range.

Part Context

This part belongs to the QT325S series of quartz crystals manufactured by QST. The series is characterized by its small form factor and robust construction suitable for high-volume electronics manufacturing. The specific model denotes the frequency, tolerance, and package dimensions unique to this variant within the broader product line.

Replacement Considerations

Substitute parts must maintain identical electrical parameters, specifically the 28.224 MHz frequency, 10 pF load capacitance, and ±30 ppm tolerance. The replacement must fit the same 3.2x2.5 mm footprint and meet AEC-Q200 automotive qualifications to ensure functional compatibility.