18QHTF21-33.939-OE

Oscillators Overview

The 18QHTF21-33.939-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 33.939 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for standard digital interface compatibility
• Integrated enable and disable control functionality
• Surface-mount 4-SMD no lead package design

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system power rails. Ensure the 4-SMD no lead footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. The enable/disable feature allows for power management in battery-operated devices. Consider the small form factor for space-constrained designs. Verify temperature range suitability for the intended operating environment.

Oscillators Part Context

This part belongs to the Mercury Electronics XO (Standard) series. It is distinct from differential oscillators like the H_K or H_EK series. The model number indicates a 33.939 MHz frequency variant within the 18QHTF21 product line, sharing the same physical package and electrical interface as other frequencies in this series.

Oscillators Replacement Considerations

Direct substitutes include other 33.939 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Cross-reference pinouts and voltage levels carefully. Alternative frequencies in the same package may be used if the system clock requirement allows.