18QHTF21-124.416-OE

Overview

The 18QHTF21-124.416-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 124.416 MHz. It utilizes LVCMOS output logic and supports a supply voltage of 1.8V. The device features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications. This component serves as a precise clock source for digital circuits requiring stable timing signals.

Feature Summary

• Provides stable clock signal generation at 124.416 MHz using LVCMOS logic
• Integrates enable/disable functionality for efficient power control
• Utilizes a compact 4-SMD no-lead package for space-constrained designs

Applications

• Digital system clock generation
• Embedded controller timing sources
• Communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable pin logic levels are compatible with your microcontroller or driver outputs to guarantee proper operation.

Selection Notes

Select this oscillator when a low-voltage 1.8V supply is required alongside a specific 124.416 MHz frequency. Consider the small 4-SMD footprint if board space is limited. Evaluate the need for active enable control versus always-on operation based on your system's power efficiency goals and thermal constraints.

Part Context

This part belongs to the Mercury Electronics XO series, which offers various frequencies and packages. The 18QHTF21 series typically denotes a specific size and performance class within their standard oscillator lineup. It is distinct from differential oscillators like the H_QF series or crystals like the MQ series.

Replacement Considerations

Direct replacements must match the 124.416 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications such as jitter and phase noise if critical. Cross-reference with other manufacturers' equivalent SMD oscillators ensuring identical form factor and drive conditions.