18QHTF21-26.9973-OE

Oscillators Overview

The 18QHTF21-26.9973-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 26.9973 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an Enable/Disable control pin for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital signal compatibility
• Features an enable/disable control pin for active power management
• Utilizes a leadless surface-mount package for automated assembly

Oscillators Applications

• Clock generation for embedded systems
• Timing reference for communication interfaces
• Power management circuits requiring precise timing

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The small 2.0x1.6mm form factor makes it suitable for space-constrained designs. Consider the enable pin functionality if dynamic power saving is necessary for the application.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series typically offers various frequencies within a standardized small outline package. The manufacturer has decades of experience in Taiwan's quartz industry, providing reliable timing solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 26.9973 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar small-form-factor oscillators with enable features.