18QHTF21-44.737-OE

Oscillators Overview

The 18QHTF21-44.737-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 44.737 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• Integrates LVCMOS output interface for digital signal compatibility
• Features active enable/disable pin for low-power operation control
• Utilizes SMD no-lead package design for automated PCB mounting

Oscillators Applications

• Digital clock signal generation in embedded systems
• Timing reference for microcontroller units
• Data communication interface synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before ordering. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the designated PCB land pattern to guarantee proper solder joint formation and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 44.737 MHz timing source is required for LVCMOS-compatible logic circuits. Consider the enable/disable functionality if dynamic power saving is necessary. Evaluate the 1.8V operating range against available power supplies. The small form factor makes it appropriate for space-constrained portable or industrial electronic devices requiring reliable frequency control.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics series of quartz-based frequency control products. The manufacturer specializes in various crystal and oscillator types since 1973. This specific model represents a standard XO variant designed for general-purpose timing applications within modern electronic assemblies.

Oscillators Replacement Considerations

Direct substitutes must match the 44.737 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD package dimensions. Verify electrical parameters such as phase noise and jitter specifications to ensure functional equivalence in the application.