18QHTF21-78.750-OE

Overview

The 18QHTF21-78.750-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 78.75 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Compact 4-SMD No Lead package

Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead package footprint matches your PCB layout to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 78.75 MHz clock source is required with low power consumption due to the 1.8V operating voltage. The enable/disable feature makes it suitable for applications requiring dynamic power management. Consider the small form factor of the 4-SMD package for space-constrained designs.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in producing crystals and oscillators. This series typically offers standard performance characteristics for general electronic applications.

Replacement Considerations

Direct substitutes may include other 78.75 MHz LVCMOS oscillators in a 4-SMD No Lead package with 1.8V operation. Verify pin compatibility and electrical parameters such as phase noise and jitter before substitution.