18QHTF21-50.0433-OE

Overview

The 18QHTF21-50.0433-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 50.0433 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features enable/disable control functionality. It is housed in a compact 4-SMD, No Lead package designed for surface mount applications.

Feature Summary

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

Applications

• General electronic timing circuits
• Digital signal processing systems
• Communication equipment clocking

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system power rails. Ensure the 4-SMD No Lead footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a precise 50.0433 MHz reference is required with low voltage operation. Consider the LVCMOS compatibility with downstream digital logic families. Evaluate the physical size constraints of the 4-SMD package against available board space. Verify thermal performance within the specified operating temperature range for reliable long-term operation in the target environment.

Part Context

This oscillator belongs to the standard XO series from Mercury Electronics, known for quartz-based frequency stability. The manufacturer has extensive experience in Taiwan's quartz industry since 1973. This specific model represents a surface-mount solution suitable for modern miniaturized electronics requiring stable clock signals without differential outputs.

Replacement Considerations

Direct substitutes must match the 50.0433 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical. Consult manufacturer cross-reference lists for equivalent parts with identical form factor and functional parameters.