QTM216J-27.000MDJ-T

Overview

The QTM216J-27.000MDJ-T is a standard crystal oscillator (XO) manufactured by QST, operating at a nominal frequency of 27 MHz. It utilizes CMOS output logic and functions within a supply voltage range of 1.65 V to 1.95 V, with typical operation at 1.8 V. The device features enable/disable functionality and maintains a frequency stability of ±50 ppm across an operating temperature range of -40°C to +105°C. It is housed in a compact 4-SMD, no-lead package measuring approximately 0.079 inches in length and 0.063 inches in width.

Feature Summary

• CMOS output interface for digital signal compatibility
• Enable and disable control capability for power management
• Wide industrial temperature rating for harsh environments

Applications

• Embedded systems requiring precise clock timing
• Industrial control equipment
• Consumer electronics with strict size constraints

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required load capacitance and pin configuration. Confirm that the 4-SMD package dimensions align with the PCB footprint design rules. Check for any recent revisions in the enable/disable logic polarity or output drive strength specifications before finalizing the bill of materials.

Selection Notes

Select this component when a low-voltage, small-footprint clock source is required for CMOS-based circuits. Ensure the system operates within the 1.65 V to 1.95 V supply range and requires ±50 ppm stability. Consider the thermal performance if the application exceeds standard commercial temperature limits, as this part supports extended industrial ranges.

Part Context

This oscillator belongs to QST's standard XO series, designed for applications needing reliable frequency generation in space-constrained designs. The 4-SMD package allows for automated surface-mount assembly, supporting high-volume manufacturing processes common in modern electronic device production.

Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify electrical parameters such as supply voltage, output type, and stability match exactly before considering alternative manufacturers.