18QHTF21-1.920-PD

Overview

The Mercury Electronics 18QHTF21-1.920-PD is a quartz crystal unit designed for precision timing applications. It operates at a fundamental frequency of 1.920 MHz. The component utilizes a HC-49/US style package configuration, providing robust mechanical stability for through-hole mounting. This specific model is engineered to deliver stable oscillation characteristics suitable for various electronic circuits requiring accurate clock signals.

Feature Summary

• Fundamental mode operation ensures precise frequency stability
• Standardized HC-49/US package facilitates easy integration into printed circuit boards
• Designed for reliable performance in standard operating temperature ranges

Applications

• Microcontroller clock sources
• Communication equipment timing references
• General-purpose oscillator circuits

Procurement Notes

Verify the exact load capacitance requirements against your circuit design before procurement. Ensure that the operating temperature range specified by Mercury Electronics aligns with your environmental conditions. Confirm pin compatibility and mounting orientation for the HC-49/US package during assembly planning.

Selection Notes

Select this component when a fundamental frequency near 1.920 MHz is required. Consider the physical dimensions of the HC-49/US package for board space constraints. Evaluate the drive level specifications to prevent over-driving the crystal, which could affect longevity and frequency accuracy.

Part Context

This part belongs to Mercury Electronics' line of general-purpose quartz crystals. The HC-49/US series is widely used in consumer electronics and industrial controls due to its cost-effectiveness and availability. The 1.920 MHz frequency is often utilized in baud rate generation and specific communication protocols.