18QHTF21-124.342857-PD

Overview

The 18QHTF21-124.342857-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 124.342857 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Includes standby functionality for power management
• Delivers LVCMOS output signal compatibility

Applications

• General clock generation for digital circuits
• Timing reference for communication interfaces
• Embedded system clock sources

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 4-SMD no-lead package footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a stable 124.342857 MHz clock source is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage constraint and the availability of a standby mode for power-sensitive designs. Evaluate the thermal performance and size constraints of the 4-SMD package relative to other available oscillator options in your application.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series typically offers various frequencies and output types within a standardized small form factor. Mercury Electronics has established itself as a pioneer in quartz crystal manufacturing, providing reliable frequency control solutions for industrial and consumer electronics markets globally.

Replacement Considerations

Direct substitutes must match the 124.342857 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical to the application.