18QHTF21-57.750333-PD

Overview

The 18QHTF21-57.750333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.750333 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports low-voltage operation with a 1.8V supply requirement
• Integrates standby functionality to reduce power consumption during idle states
• Delivers precise clock signals via LVCMOS output interface

Applications

• Digital signal processing systems requiring stable clock sources
• Communication equipment utilizing high-frequency timing references
• Embedded control units needing low-power oscillation modes

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail can maintain stability under all operating conditions. Ensure the PCB layout accommodates the 4-SMD no-lead package dimensions correctly to prevent soldering defects.

Selection Notes

Choose this component when a precise 57.750333 MHz frequency is mandatory for system synchronization. Select it if the application demands low voltage operation compatible with modern digital logic families. Consider the integrated power-down feature as a critical factor for battery-operated or energy-efficient designs requiring active standby states.

Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series typically offers various frequencies within a standardized small form factor. Mercury has decades of experience in manufacturing crystal oscillators, ensuring consistent quality across their XO product lines for industrial and commercial electronics.

Replacement Considerations

Direct substitutes must match the 57.750333 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pin compatibility and electrical characteristics before swapping manufacturers.