QT325G-14.31818MAGV-T

Overview

The QT325G-14.31818MAGV-T is a quartz crystal resonator manufactured by QST, operating at a nominal frequency of 14.31818 MHz. It features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 100 Ohms. The component exhibits a frequency tolerance of ±30 ppm and stability of ±30 ppm within the -20°C to +70°C temperature range. It utilizes a glass-sealed construction housed in a 4-SMD, no-lead package with dimensions of 3.2 mm x 2.5 mm. The maximum seated height is 0.90 mm, and it supports base harmonic operation mode.

Feature Summary

• Glass-sealed construction for enhanced environmental protection
• Surface-mount design compatible with automated assembly processes
• Base harmonic operation mode for precise frequency generation

Applications

• Microcontroller clock sources
• Communication interface circuits
• Digital signal processing systems

Procurement Notes

Verify the specific suffix 'GV' against official QST documentation to confirm the exact frequency tolerance and temperature range specifications. Ensure compatibility with the target circuit's load capacitance requirements, as variations exist within the QT325G family. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current availability and authenticity before procurement.

Selection Notes

Select this component when a 14.31818 MHz reference is required in a compact 3.2x2.5 mm footprint. Consider the ±30 ppm tolerance suitable for standard digital interfaces. Evaluate the 100 Ohm ESR against the oscillator circuit's drive level constraints. Confirm that the glass-sealed package meets the environmental durability requirements of the end application.

Part Context

This part belongs to the QT325G series of surface-mount quartz crystals from QST. The series offers various frequency options and tolerance grades within a standardized 3.2mm x 2.5mm package. The 'GV' suffix typically denotes specific performance characteristics regarding tolerance and temperature range compared to other variants in the same physical form factor.

Replacement Considerations

Direct substitutes may include parts from TXC Corporation such as the AV-14.31818MAGV-T, which shares similar electrical parameters and package dimensions. Verify that any replacement maintains the 12 pF load capacitance and 100 Ohm ESR to ensure circuit compatibility without redesign.