18QHTF21-1.768-PD

Overview

The 18QHTF21-1.768-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.768 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• Supports low voltage operation with 1.8V supply requirement
• Includes standby function for power management
• Utilizes LVCMOS output interface

Applications

• Battery-powered portable devices
• General purpose clock signal generation
• Embedded system timing references

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging and tape/reel specifications. Confirm that the required frequency tolerance and load capacitance match the target circuit design requirements before finalizing procurement orders.

Selection Notes

Select this component when a low-voltage 1.768 MHz clock source is required. Ensure the application supports LVCMOS logic levels and can accommodate the specified operating temperature range. Verify board space compatibility with the 4-SMD no lead footprint.

Part Context

This part belongs to the 18QHTF21 series of surface mount oscillators from Mercury Electronic. The series offers various frequency options within a small form factor, designed for modern electronic equipment requiring precise timing signals with minimal power consumption.

Replacement Considerations

Direct substitutes include other 1.768 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Ensure equivalent electrical parameters such as supply voltage and current consumption are matched during replacement.