18QHTF21-16.7722-PD

Oscillators Overview

The 18QHTF21-16.7722-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 16.7722 MHz with an LVCMOS output signal. The device requires a 1.8V supply voltage and features a power-down standby function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The component supports an operating temperature range of -40°C to 85°C and maintains a frequency stability of 50ppm.

Oscillators Feature Summary

• Integrated LVCMOS output interface for digital logic compatibility
• Power-down capability for energy-efficient standby operation
• Compact surface-mount design suitable for space-constrained PCB layouts

Oscillators Applications

• Digital clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Communication interface synchronization modules

Oscillators 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 4-SMD no-lead package footprint matches the PCB silkscreen and solder mask definitions. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure joint integrity during assembly.

Oscillators Selection Notes

Select this component when a precise 16.7722 MHz timing source is required for low-voltage digital applications. The LVCMOS output level is suitable for direct interfacing with standard logic families without additional buffering. Consider the 50ppm stability for applications requiring moderate frequency accuracy over the industrial temperature range. The power-down feature makes it ideal for battery-operated devices where standby current reduction is critical.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series offers various frequencies and voltage options within a standardized small outline package. Mercury Electronics has decades of experience in manufacturing quartz crystals and ceramic components, providing reliable timing solutions for global electronics markets.

Oscillators Replacement Considerations

Direct substitutes may include other 16.7722 MHz LVCMOS oscillators in 2.0x1.6mm packages from manufacturers such as Epson or NDK. Verify pinout compatibility and electrical specifications before substitution. Cross-reference part numbers like 18QHTF21 variants with different frequencies if the exact frequency is not critical.