18QHTF21-12.1859-OE

Overview

The Mercury Electronics 18QHTF21-12.1859-OE is a high-stability crystal oscillator designed for precision timing applications. It operates at a fundamental frequency of 12.1859 MHz, providing accurate clock signals for digital systems. The device utilizes a TCXO (Temperature Compensated Crystal Oscillator) architecture to maintain frequency stability across varying environmental temperatures. This component is engineered for reliability in demanding electronic environments where precise timekeeping is critical.

Feature Summary

• High frequency stability ensured through temperature compensation technology
• Compact surface-mount package design suitable for space-constrained PCB layouts
• Robust construction for reliable operation in industrial and commercial applications

Applications

• Telecommunications equipment requiring precise synchronization
• Medical imaging devices needing stable clock sources
• Industrial control systems with strict timing requirements

Procurement Notes

Verify the specific ordering suffix and pin configuration against the official datasheet before procurement. Ensure that the voltage supply and load capacitance requirements match your circuit design specifications. Confirm the operating temperature range aligns with your application environment to guarantee performance reliability.

Selection Notes

Select this component when high accuracy and long-term stability are prioritized over cost. Consider the power consumption and output waveform compatibility with your target logic family. Evaluate the physical footprint constraints to ensure the selected package fits within the available board space without compromising signal integrity.

Part Context

This model belongs to Mercury Electronics' line of precision oscillators, focusing on TCXO solutions. It serves as a critical timing reference in systems where quartz crystal drift could compromise functionality. The part integrates the resonator and compensation circuitry into a single unit for enhanced performance compared to discrete components.

Replacement Considerations

Check for direct cross-reference part numbers from Mercury Electronics or compatible manufacturers offering identical pinouts and electrical characteristics. Verify that any substitute maintains the same frequency tolerance and phase noise specifications to ensure system compatibility.