QTM252J-20.000MBJ-T

Overview

The QTM252J-20.000MBJ-T is a standard CMOS quartz oscillator manufactured by TXC Corporation under the QST brand. It operates at a frequency of 20 MHz with a supply voltage of 3.3V and features a ±50ppm frequency stability. The device supports an operating temperature range from -40°C to +105°C, includes enable/disable functionality, and utilizes a 4-SMD, no-lead surface mount package.

Feature Summary

• CMOS output signal generation
• Enable/Disable control function
• Industrial temperature range operation

Applications

• General clock signal distribution
• Embedded system timing references
• Industrial electronic equipment

Procurement Notes

Verify that the component is sourced from authorized channels to ensure authenticity. Confirm the specific ordering suffix matches the required voltage and stability specifications. Check for RoHS compliance status if environmental regulations apply. Ensure the package type aligns with the PCB footprint design. Review the datasheet for handling precautions related to the surface mount package.

Selection Notes

Select this model when a 20 MHz clock source is required for digital circuits. The 3.3V supply voltage suits most modern logic families. The wide temperature range allows use in harsh environments. The enable pin provides power management flexibility. Verify the load capacitance requirements match the target application circuit.

Part Context

This part belongs to the QTM252 series of low jitter oscillators. The series offers various frequencies and voltages. The J suffix typically indicates specific stability or packaging variations within the product line. It serves as a compact timing solution for space-constrained designs.

Replacement Considerations

Direct substitutes must match the 20 MHz frequency, 3.3V supply, and 4-SMD package. Verify pinout compatibility before replacement. Check if the alternative part meets the same temperature and stability requirements.