QTM252J-7.3728MBJ-T

Overview

The QTM252J-7.3728MBJ-T is a standard clock oscillator manufactured by TXC Corporation, part of the QST series. It features a nominal frequency of 7.3728MHz with a frequency stability of ±50ppm. The device operates on a 3.3V supply voltage and utilizes CMOS output logic. It is housed in a surface-mount package measuring 2.5mm x 2mm. The component supports an operating temperature range of -40°C to +105°C and has a maximum supply current of 22mA.

Feature Summary

• Low jitter and phase noise performance for precise timing applications
• CMOS output interface compatible with digital logic circuits
• Wide industrial temperature range operation

Applications

• General purpose clock generation for embedded systems
• Timing reference for microprocessors and microcontrollers
• Communication equipment requiring stable frequency sources

Procurement Notes

Verify the manufacturer designation carefully, as this specific part number is associated with TXC Corporation despite the QST family naming convention. Confirm the supply voltage requirement is strictly 3.3V to ensure compatibility with the target circuit design. Ensure the footprint matches the 2.5mm x 2mm SMD package dimensions during PCB layout validation.

Selection Notes

Select this component when a 7.3728MHz frequency is required with ±50ppm stability. The wide temperature range makes it suitable for industrial environments. Verify that the system power rail provides a stable 3.3V supply, as the oscillator does not support lower voltages like 1.8V found in other variants within the same physical package size.

Part Context

This oscillator belongs to the QTM252J series, characterized by its compact 2.5x2.0mm surface-mount footprint. The series offers various frequencies while maintaining consistent electrical characteristics such as low jitter and CMOS outputs. It serves as a direct replacement for legacy components requiring similar form factors and timing specifications in modern electronic designs.

Replacement Considerations

The QTM252J-11.2896MBJ-T is a documented variant within the same series but operates at a different frequency (11.2896MHz). Direct substitution requires verifying that the system clock requirements match the new frequency. Other QTM252J models share the same package but may differ in voltage or frequency specifications.