18QHTF21-57.423667-PD

Overview

The 18QHTF21-57.423667-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.423667 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic interface
• Standby power-down capability
• Compact 4-SMD no lead package

Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD package dimensions fit within your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.

Selection Notes

Select this component when a precise 57.423667 MHz clock source is required with low power consumption capabilities. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency is critical. Verify that the operating temperature range meets your environmental conditions. Compare package size against available board space to ensure mechanical fit.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan producing crystals and oscillators. This series typically offers standard XO options with various frequencies and supply voltages, catering to diverse electronic timing needs across consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and electrical characteristics but different frequencies, such as 18QHTF21-6.000-PD or 18QHTF21-15.700-PD, provided the frequency difference is acceptable for the application. Cross-referencing with other manufacturers' 4-SMD LVCMOS oscillators requires careful verification of voltage, current, and timing specs.