18QHTF21-82.705-OE

Overview

The 18QHTF21-82.705-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 82.705 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Features enable and disable control functionality for power management
• Utilizes a leadless SMD package for automated surface-mount assembly

Applications

• General clock signal generation in electronic circuits
• Timing reference sources for digital systems
• Embedded devices requiring stable frequency standards

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions provided in the official datasheet to prevent mounting issues during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs. Consider the operating temperature range and package size constraints relative to the available board space and thermal environment of the final application.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies within the same form factor. The suffix indicates the specific 82.705 MHz frequency variant. Mercury Electronics specializes in quartz crystal products, providing standardized timing solutions for industrial and consumer electronics markets.

Replacement Considerations

Direct substitutes must match the 82.705 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical specifications with alternative manufacturers. Cross-reference with other Mercury Electronics variants if frequency adjustments are permissible.