18QHTF21-17.547264-PD

Oscillators Overview

The 18QHTF21-17.547264-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a fixed frequency of 17.547264 MHz with an LVCMOS output logic level. 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 with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• Integrates LVCMOS output interface for direct digital logic compatibility
• Features integrated standby mode to reduce power consumption during idle periods
• Utilizes a leadless surface-mount package for automated assembly efficiency

Oscillators Applications

• High-speed data communication interfaces requiring stable clock sources
• Portable consumer electronics with strict size and power constraints
• Embedded systems utilizing low-voltage microcontrollers

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 within the operational limits. Ensure the PCB footprint matches the 2.0x1.6mm SMD no-lead package specifications to prevent mounting issues. Check for any specific reflow soldering profile recommendations provided in the official datasheet to maintain component integrity.

Oscillators Selection Notes

Select this model when a 17.547264 MHz clock signal is strictly required for synchronization tasks. The choice is driven by the need for low-voltage operation compatible with modern 1.8V logic families. Consider this part if the application demands a small form factor due to space limitations on the PCB. The inclusion of a power-down feature makes it suitable for battery-operated devices where standby current reduction is critical for extending operational life.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz frequency control products. The manufacturer has decades of experience in Taiwan's quartz industry. The series typically offers various frequencies and packages, catering to diverse industrial and consumer needs. This specific variant focuses on the 17.547264 MHz niche, often used in specialized timing applications.

Oscillators Replacement Considerations

Direct substitutes include other 17.547264 MHz LVCMOS oscillators in 2.0x1.6mm packages from different manufacturers, provided they match the 1.8V supply and pinout. Verify equivalent electrical parameters such as phase noise and stability before swapping.