18QHTF21-18.400-PD

Oscillators Overview

The 18QHTF21-18.400-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.4 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V 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 applications.

Oscillators Feature Summary

• LVCMOS output interface
• Integrated standby mode
• Surface-mount packaging

Oscillators Applications

• General purpose timing circuits
• Embedded systems clock sources
• Consumer electronics timing references

Oscillators 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's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints to avoid assembly issues.

Oscillators Selection Notes

Choose this component when a low-profile, surface-mount oscillator with LVCMOS outputs is required. The 1.8V operating voltage makes it suitable for modern low-power digital logic families. Consider the standby feature if power conservation during idle states is a design priority.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind., Co., Ltd, a manufacturer specializing in quartz crystals and oscillators. The series typically offers various frequency options within a standardized small outline package format, catering to diverse timing needs in electronic assemblies.

Oscillators Replacement Considerations

Direct substitutes must match the 18.4 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications before swapping components.