QTM252J-125.000MBJ-T

Overview

The QTM252J-125.000MBJ-T is a standard CMOS quartz oscillator manufactured by QST Products, LLC. It operates at a nominal frequency of 125 MHz and utilizes an SMD2520-4P surface-mount package. The device functions with a supply voltage of 3.3 V and features an enable/disable control pin for power management. It provides a frequency stability of ±50 ppm across an operating temperature range of -40°C to +105°C. This component is designed for precision timing applications in high-density electronic circuits.

Feature Summary

• Compact SMD2520-4P surface-mount form factor suitable for space-constrained designs
• Integrated enable/disable functionality for efficient power management
• Extended industrial temperature rating from -40°C to +105°C

Applications

• High-speed bus clock generation
• Wireless communication systems
• Consumer electronics requiring precise timing

Procurement Notes

Verify the specific suffix codes against the manufacturer's official ordering guide to ensure correct voltage and stability specifications. Confirm that the required operating temperature range aligns with the J suffix designation. Cross-reference the package outline dimensions with your PCB footprint library to guarantee mechanical compatibility during assembly.

Selection Notes

Select this model when a 125 MHz CMOS output is required within a compact 2520 footprint. Ensure the design supports a 3.3V logic level and accommodates the enable signal interface. Consider the ±50 ppm stability tolerance relative to system jitter requirements before finalizing the bill of materials.

Part Context

This part belongs to the QTM252 series of low-jitter CMOS crystal oscillators. The series offers various frequency options and voltage configurations within the same small outline package. It serves as a general-purpose clock source for digital interfaces and processing units where size and performance are critical constraints.

Replacement Considerations

Direct substitutes include other QTM252 variants with matching 125 MHz frequency and 3.3V operation. Verify pinout compatibility and electrical parameters before swapping with different manufacturers' equivalent packages.