18QHTF21-26.66666-OE

Oscillators Overview

The 18QHTF21-26.66666-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 26.66666 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It includes an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output interface
• Enable/disable functionality
• Compact 4-SMD no-lead package

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target design specifications before procurement. Ensure that the 1.8V supply voltage aligns with the system power rails. Confirm that the 4-SMD no-lead package footprint matches the PCB layout constraints. Check for any specific environmental operating temperature ranges required by the application environment.

Oscillators Selection Notes

Select this component when a precise 26.66666 MHz clock source is required for LVCMOS-compatible digital logic. The choice is driven by the need for low voltage operation at 1.8V and the integration of enable/disable controls for power management. Consider the small 2.0x1.6mm form factor for space-constrained designs. Evaluate if the standard XO performance meets the jitter and stability needs of the specific application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a small footprint. The suffix -OE indicates specific packaging or ordering variations. Mercury Electronics specializes in frequency control products, leveraging decades of experience in quartz crystal manufacturing.

Oscillators Replacement Considerations

Direct substitutes must match the 26.66666 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical characteristics such as current consumption and drive strength. Cross-reference with other manufacturers offering similar low-profile oscillators with enable pins.