18QHTF21-124.750-OE

Overview

The 18QHTF21-124.750-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 124.75 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an enable/disable control pin for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Feature Summary

• Integrates LVCMOS output interface for direct digital logic compatibility
• Features low-profile surface mount packaging for automated assembly
• Includes enable/disable functionality to reduce power consumption during idle states

Applications

• High-speed data communication interfaces requiring precise clock synchronization
• Embedded systems utilizing microcontrollers or FPGAs
• Portable consumer electronics with strict size and power constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD no-lead package specifications provided in the official datasheet to prevent soldering defects.

Selection Notes

Select this component when a 124.75 MHz clock signal is required with minimal board space. Consider the 1.8V operating voltage to ensure compatibility with low-power logic families. The enable pin feature makes it suitable for battery-operated devices where power efficiency is critical. Verify thermal performance within the specified operating temperature range for your application environment.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which focuses on small-form-factor timing solutions. The manufacturer has extensive experience in quartz crystal production. Similar models in this series offer different frequencies while maintaining the same physical footprint and electrical characteristics, facilitating standardized design across product lines.

Replacement Considerations

Direct substitutes include other 124.75 MHz oscillators in 2016 packages with LVCMOS outputs and 1.8V operation. Verify pinout compatibility and enable logic polarity before swapping. Cross-reference with Mercury part numbers like 18QHTF21 variants offering identical mechanical dimensions.