18QHTF21-19.5072-PD

Oscillators Overview

The 18QHTF21-19.5072-PD is a 19.5072 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a Standby function for power down capabilities. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Oscillators Feature Summary

• LVCMOS output signal compatibility
• Integrated standby mode for power management
• Compact 4-SMD no lead package design

Oscillators Applications

• General purpose clock generation
• Embedded system timing references
• Consumer electronics circuit boards

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific 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 to avoid assembly issues during production.

Oscillators Selection Notes

Select this component when a precise 19.5072 MHz reference is required for low-voltage digital circuits. The LVCMOS interface ensures direct compatibility with standard logic inputs without additional buffering. Consider the standby feature if power efficiency is a critical design parameter for battery-operated devices.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, a manufacturer specializing in quartz crystals and oscillators. The series offers various frequencies within a standardized small outline package format, providing consistent mechanical dimensions across different clock speeds for easier board design reuse.

Oscillators Replacement Considerations

Direct substitutes include other 19.5072 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications such as phase noise and jitter before swapping manufacturers.