QT325S-25.000MAHE-T

Overview

The QT325S-25.000MAHE-T is a 25 MHz quartz crystal resonator manufactured by QST. It utilizes a 3.2x2.5 mm seam seal package with four surface-mount terminals. The component operates within a temperature range of -40°C to +85°C, maintaining a frequency stability of ±30 ppm across the full range and at 25°C. It features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 ohms. The device is designed for precision timing applications requiring reliable performance in compact electronic systems.

Feature Summary

• Seam seal construction for environmental protection
• Compact surface-mount footprint
• Wide operating temperature range capability

Applications

• Precision timing circuits
• Microcontroller clock sources
• Communication module oscillators

Procurement Notes

Verify the manufacturer designation as QST or TXC Corporation depending on the specific supply chain source. Confirm the package dimensions and terminal configuration match the 3.2x2.5 mm seam seal specification. Ensure the load capacitance requirement of 12 pF aligns with the target circuit design before procurement.

Selection Notes

Select this component when a 25 MHz frequency is required with ±30 ppm stability over industrial temperatures. The 12 pF load capacitance must be compatible with the host oscillator circuit. Consider the 50 ohm ESR value for impedance matching requirements in the application design.

Part Context

This part belongs to the QT325S series of quartz crystals. The series offers various frequencies and stability options within a standardized small outline package. These components are commonly used in consumer electronics and industrial equipment where space constraints and timing accuracy are critical factors.

Replacement Considerations

The QT325S-25.000MDHJ-T is a documented substitute within the same product family. Verify that the replacement maintains the required 25 MHz frequency and 12 pF load capacitance specifications.