18QHTF21-50.0565-OE

Overview

The 18QHTF21-50.0565-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 50.0565 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features enable/disable control functionality. It is housed in a compact 4-SMD, No Lead package designed for surface-mount applications.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control pin
• Surface-mount SMD package configuration

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Procurement Notes

Verify the specific suffix OE against the manufacturer's current documentation to confirm exact electrical tolerances and lead-free status. Ensure the 1.8V supply requirement aligns with the target circuit design before procurement. Cross-reference the 4-SMD footprint dimensions with the PCB layout to guarantee mechanical fit.

Selection Notes

Select this component when a precise 50.0565 MHz reference is required for low-voltage digital circuits. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the enable feature if power management or clock gating is necessary within the system architecture.

Part Context

This model belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 18 prefix indicates the 1.8V operating voltage range, distinguishing it from higher voltage variants within the same product family.

Replacement Considerations

Direct substitutes must match the 50.0565 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Check for equivalent enable/disable functionality if present in the original design.