QTM252J-1.8432MBJ-T

Overview

The QTM252J-1.8432MBJ-T is a standard clock oscillator manufactured by QST Products, LLC. It utilizes CMOS output technology and operates at a frequency of 1.8432 MHz. The device supports a supply voltage of 3.3V and features a frequency stability of ±50ppm. It is designed for surface mount installation within an operating temperature range of -40°C to 105°C. The maximum supply current is specified as 22mA. The component is housed in a compact 2.5mm x 2mm package.

Feature Summary

• CMOS output interface for digital logic compatibility
• Low profile surface mount construction
• Wide industrial temperature rating capability

Applications

• General purpose timing reference circuits
• Embedded system clock generation
• Digital communication interface synchronization

Procurement Notes

Verify the manufacturer designation on the final datasheet, as this part number appears under both TXC Corporation and QST Products listings across different distributors. Confirm the specific pinout configuration and enable/disable functionality requirements against the official QST documentation before integration into the design.

Selection Notes

Select this component when a precise 1.8432 MHz reference is required for CMOS-based digital systems. Ensure the 3.3V supply rail aligns with the target circuit architecture. Consider the ±50ppm stability specification relative to the application's jitter tolerance and phase noise requirements.

Part Context

This model belongs to the QTM252J series of quartz crystal oscillators. The series offers various frequency options within a standardized 2.5x2.0mm footprint. It serves as a direct replacement for legacy discrete crystal and resonator combinations, providing a ready-made clock signal solution for space-constrained PCB layouts.

Replacement Considerations

Cross-reference with QTM252J-1.8432MDJ-T if 1.8V operation is required instead of 3.3V. Verify pin compatibility with other 4-SMD no-lead oscillators from the same family.