18QHTF21-1.400-PD

Overview

The Mercury Electronics 18QHTF21-1.400-PD is a high-frequency crystal oscillator designed for precision timing applications. This component operates at a fundamental frequency of 1.400 MHz, utilizing a quartz resonator element housed in a surface-mount package. The device provides stable oscillation with low phase noise characteristics suitable for communication systems and data acquisition circuits. It features a standard pin configuration compatible with automated assembly processes, ensuring reliable performance across specified temperature ranges without requiring external tuning components.

Feature Summary

• Utilizes a fundamental mode quartz resonator for precise frequency generation
• Designed for surface-mount technology integration
• Provides stable oscillation output for timing-critical applications

Applications

• Communication system clock sources
• Data acquisition circuit timing references
• Industrial control system synchronization

Procurement Notes

Verify the specific ordering suffixes against the manufacturer's current datasheet to ensure compatibility with required load capacitance and drive level specifications. Confirm that the package dimensions match the target PCB footprint design. Check for any recent revisions to the electrical parameters or recommended soldering profiles to maintain signal integrity and long-term reliability in the final assembly.

Selection Notes

Select this component based on the requirement for a fundamental frequency operation near 1.4 MHz. Evaluate the available package options to ensure mechanical fit within the enclosure constraints. Consider the operating temperature range requirements of the end application to confirm the selected variant meets environmental stability standards. Verify supply chain availability for consistent production volumes.

Part Context

This part belongs to the Mercury Electronics series of quartz crystal oscillators, which are engineered for electronic equipment requiring accurate timekeeping and signal processing. The product line typically includes various frequency options and package styles to support diverse industrial and commercial electronics designs. These components serve as critical reference elements in circuits where frequency stability directly impacts overall system performance and data accuracy.

Replacement Considerations

Consult official cross-reference lists for direct substitutes. Ensure replacement parts match the fundamental frequency, package outline, and electrical interface specifications.