18QHTF21-68.667-OE

Overview

The 18QHTF21-68.667-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 68.667 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Includes hardware enable and disable functionality for power management
• Utilizes a leadless SMD package for automated surface-mount processing

Applications

• General-purpose clock signal generation in embedded systems
• Timing reference sources for consumer electronics devices
• Clock distribution in portable battery-operated equipment

Procurement Notes

Verify the specific suffix 'OE' against the manufacturer's current catalog to ensure it matches the required enable/disable configuration and voltage level. Confirm that the 4-SMD no-lead footprint aligns with your PCB design constraints. Request the official datasheet from Mercury Electronics or authorized distributors to validate electrical parameters such as jitter and phase noise before finalizing the order.

Selection Notes

Select this component when a precise 68.667 MHz timing source is required with low-power capabilities. Ensure the system design supports a 1.8V supply rail. Consider the enable pin requirement if dynamic power saving is necessary. Compare the physical dimensions of the 4-SMD package against available board space. Verify temperature range specifications if the application involves extreme environmental conditions.

Part Context

This part belongs to the Mercury Electronics quartz oscillator family, which includes various XO, TCXO, and VCTCXO products. The company specializes in frequency control solutions using quartz technology. This specific model represents a standard fixed-frequency oscillator variant within their broader portfolio of timing components.

Replacement Considerations

Direct substitutes may include other 68.667 MHz LVCMOS oscillators in similar packages. Check for equivalent supply voltage and enable functionality. Verify pinout compatibility and thermal characteristics. Cross-reference with Mercury Electronics' internal cross-reference lists for confirmed alternative part numbers.