18QHTF21-57.27272-OE

Overview

The 18QHTF21-57.27272-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.27272 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a 1.8V supply voltage. It features an enable/disable control function to manage power consumption during standby periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount designs.

Feature Summary

• LVCMOS output interface for digital compatibility
• Integrated enable/disable pin for power management
• Compact 4-SMD no-lead surface mount package

Applications

• Embedded systems requiring precise clock timing
• Consumer electronics with limited board space
• Industrial control modules needing stable oscillation

Procurement Notes

Verify the specific suffix 'OE' corresponds to the Enable/Disable functionality and LVCMOS output type as documented in official Mercury Electronics datasheets. Confirm that the 1.8V supply requirement aligns with your system's voltage rails. Ensure the 4-SMD no-lead footprint matches your PCB layout constraints. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this oscillator when a fixed 57.27272 MHz frequency is required with low power consumption capabilities. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. The enable/disable feature allows for dynamic power saving in battery-operated devices. Consider the small 2.0x1.6mm package size if board real estate is limited compared to larger oscillator packages.

Part Context

This component belongs to the Mercury Electronics 18QHTF series of micro-dimensional crystal oscillators. The series is characterized by small form factors and low voltage operation. Mercury Electronics has specialized in quartz crystal manufacturing since 1973, positioning itself as a pioneer in the Taiwan quartz industry. This specific model represents their standard XO line with integrated control features.

Replacement Considerations

Direct replacements must match the 57.27272 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify that substitute parts also support the enable/disable control function. Check dimensional tolerances to ensure compatibility with existing PCB footprints. Consult manufacturer cross-reference lists for verified equivalent part numbers.