18QHTF21-57.443667-OE

Overview

The 18QHTF21-57.443667-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.443667 MHz and utilizes LVCMOS output logic levels. The component is designed for a supply voltage of 1.8V and features an enable/disable control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic interface
• Enable/Disable control functionality
• Compact 4-SMD No Lead package

Applications

• General-purpose digital timing circuits
• Embedded systems requiring precise clock references
• Consumer electronics with space constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability during operation.

Selection Notes

Select this component when a stable 57.443667 MHz clock signal is required for LVCMOS-compatible logic families. The integrated enable/disable feature makes it suitable for battery-powered applications where power management is critical. Consider the operating temperature range and packaging type to ensure compatibility with your manufacturing process and environmental conditions.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of standard crystal oscillators. The series offers various frequencies and voltage options within a small form factor. Mercury Electronics specializes in frequency control products, including quartz crystals and oscillators, providing reliable timing solutions for electronic devices since 1973.

Replacement Considerations

Direct replacements must match the 57.443667 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics such as rise/fall times and duty cycle. Consult manufacturer cross-reference lists for equivalent parts from other suppliers offering identical specifications.