18QHTF21-72.727-PD

Overview

The 18QHTF21-72.727-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 72.727 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby and power-down functionality
• Compact 4-SMD no lead package design

Applications

• General purpose clock generation
• Digital signal processing systems
• Communication equipment timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Selection Notes

Select this component when a 72.727 MHz reference is required with low-voltage operation. The LVCMOS output is appropriate for standard digital logic families. Consider the power-down feature if energy efficiency during idle states is a priority. The small form factor makes it suitable for space-constrained designs compared to larger through-hole alternatives.

Part Context

This part belongs to the Mercury Electronics XO series, which provides stable frequency references. The manufacturer has extensive experience in quartz crystal production. The 'PD' suffix typically indicates the inclusion of power-down control capabilities within the oscillator module.

Replacement Considerations

Direct substitutes must match the 72.727 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical specifications such as phase noise and jitter before swapping components.