QT325S-48.000MEEQ-T

Overview

The QT325S-48.000MEEQ-T is a quartz crystal resonator manufactured by QST, operating at a fundamental frequency of 48 MHz. It features a load capacitance of 10 pF and a frequency tolerance of ±10 ppm. The component utilizes a glass seal construction within a 4-SMD, no lead package measuring 3.2 mm x 2.5 mm x 0.7 mm. Equivalent specifications are documented for the TXC Corporation part number 7M-48.000MEEQ-T, which shares identical electrical parameters including a 50 Ohm ESR.

Feature Summary

• Utilizes a glass seal construction for environmental stability
• Designed for surface mount technology integration
• Provides stable oscillation at 48 MHz with tight frequency tolerance

Applications

• Clock signal generation in digital circuits
• Microcontroller system timing references
• Communication interface synchronization

Procurement Notes

Verify the manufacturer designation carefully, as the model number appears associated with both QST and TXC Corporation in public listings. Confirm that the specific variant matches the required 10 ppm tolerance and 10 pF load capacitance. Ensure the glass seal package dimensions align with the target PCB footprint to prevent assembly errors during procurement.

Selection Notes

Select this component when a compact 3.2 mm x 2.5 mm surface mount crystal is required for 48 MHz applications. The ±10 ppm tolerance suits standard digital logic and communication interfaces. Consider the equivalent TXC 7M series if supply chain diversification is necessary, as it offers identical electrical performance and physical dimensions.

Part Context

This component belongs to the QT325S series of quartz crystals, characterized by small form factor surface mount packages. The 48 MHz frequency is commonly used for USB clocking and general-purpose microcontroller systems. The glass seal variant provides reliable performance compared to ceramic alternatives in standard commercial temperature ranges.

Replacement Considerations

The TXC Corporation part number 7M-48.000MEEQ-T serves as a direct functional substitute with matching electrical and mechanical specifications.