18QHTF21-72.834-OE

Overview

The 18QHTF21-72.834-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 72.834 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage 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.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

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

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 power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

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 specifications if operating in extreme environmental conditions beyond standard commercial ranges.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a manufacturer specializing in quartz crystals and oscillators. The series typically offers various frequencies within a standardized package format. Mercury Electronics has been producing frequency control products since 1973, establishing itself as a supplier in Taiwan.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with different frequencies, such as 18QHTF21-72.834-PD, provided the pinout and electrical characteristics remain identical. Cross-reference with other manufacturers offering 4-SMD LVCMOS oscillators at 1.8V, ensuring frequency accuracy and phase noise specifications meet the original design requirements.