18QHTF21-111.000-OE

Overview

The 18QHTF21-111.000-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 111 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no lead surface mount package

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target circuit design. Confirm the enable/disable pin configuration matches the system control logic to ensure proper operation during power management states.

Selection Notes

Select this component when a 111 MHz clock source with LVCMOS outputs is required. The 1.8V operating voltage suits low-power digital circuits. The enable/disable feature allows for power saving modes. Verify that the 4-SMD package dimensions fit the PCB layout constraints and thermal requirements of the application environment.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series offers various frequencies and voltage options. The -OE suffix typically denotes specific packaging or tape-and-reel configurations. These components are designed for high-volume manufacturing and reliable performance in consumer and industrial electronics.

Replacement Considerations

Direct replacements must match the 111 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD package footprint. Verify electrical parameters such as phase noise and jitter specifications against the original datasheet to ensure signal integrity is maintained in the application.