18QHTF21-85.761-OE

Overview

The 18QHTF21-85.761-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 85.761 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Integrates enable/disable functionality for power management
• Utilizes a leadless SMD package for automated assembly

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded controller timing references

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application design before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead footprint matches the PCB land pattern to prevent soldering defects during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling standards. The enable/disable pin allows for dynamic power control in battery-operated devices. Consider the operating temperature range and stability specifications relative to the environmental conditions of the final product deployment.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount oscillators. The series offers various frequencies and voltage levels. The 18QHTF21 variant specifically denotes the 4-pin form factor. This model provides a standardized solution for timing needs in compact electronic designs.

Replacement Considerations

Direct substitutes must match the 85.761 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if available from alternative manufacturers.