18QHTF21-19.680-PD

Oscillators Overview

The Mercury Electronics Ind. Co. Ltd 18QHTF21-19.680-PD is a standard crystal oscillator (XO) operating at a frequency of 19.68 MHz. It utilizes an LVCMOS output interface and functions with a supply voltage of 1.8V. The device incorporates a standby or power-down feature for energy management. It is housed in a compact 4-SMD, no lead package suitable for surface-mount assembly.

Oscillators Feature Summary

• LVCMOS output interface
• 1.8V supply voltage operation
• Standby power-down capability

Oscillators Applications

• General electronic circuits requiring precise timing
• Embedded systems utilizing low-voltage logic
• Portable devices necessitating power efficiency

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified by the manufacturer. Ensure the PCB footprint matches the 4-SMD no lead package dimensions to guarantee proper soldering and electrical connection during assembly.

Oscillators Selection Notes

Select this component when a 19.68 MHz clock signal is required with low-voltage compatibility. The LVCMOS output ensures interoperability with standard digital logic families. Consider the power-down feature if system energy conservation is critical. Validate that the 1.8V operating voltage aligns with the target system's power distribution network.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various frequencies such as 68.08 MHz and 96.768 MHz, all sharing similar packaging and voltage characteristics. Mercury Electronics is a recognized manufacturer with extensive experience in quartz crystal production.

Oscillators Replacement Considerations

Direct substitutes include other 19.68 MHz XO components with identical 1.8V LVCMOS specifications and 4-SMD no lead packages. Verify pinout compatibility and thermal performance before substitution.