18QHTF21-69.250-OE

Overview

The Mercury Electronics 18QHTF21-69.250-OE is a high-stability crystal oscillator operating at a fundamental frequency of 69.250 MHz. This component utilizes TCXO technology to maintain precise timing accuracy across varying environmental conditions. It features a compact surface-mount package designed for integration into portable and industrial electronic systems requiring reliable clock signals.

Feature Summary

• High frequency stability with temperature compensation
• Compact surface-mount form factor for space-constrained designs
• Low phase noise characteristics for signal integrity

Applications

• Wireless communication modules
• Portable medical devices
• Industrial control systems

Procurement Notes

Verify the specific ordering suffix 'OE' against official Mercury Electronics documentation to confirm pinout, load capacitance, and output waveform specifications. Ensure compatibility with host circuit voltage levels and current consumption requirements before procurement.

Selection Notes

Select this model when precise frequency stability is critical over a wide temperature range. Evaluate power supply rejection ratio and aging rate specifications against system longevity requirements. Confirm mechanical footprint compatibility with PCB layout constraints.

Part Context

This oscillator belongs to Mercury Electronics' high-performance TCXO series, engineered for applications demanding superior frequency accuracy compared to standard HC-49S crystals. The 18QHTF21 designation indicates a specific package style optimized for automated assembly processes in modern electronics manufacturing.

Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify that alternative components match the 69.250 MHz frequency, package dimensions, and electrical performance curves to ensure seamless integration without redesign.