18QHTF21-4.375-PD

Oscillators Overview

The 18QHTF21-4.375-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 4.375 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, designed for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output interface
• 1.8V supply voltage operation
• Standby mode capability

Oscillators Applications

• General timing clock generation
• Embedded system synchronization
• Digital signal processing circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design specifications before procurement. Confirm that the 1.8V operating voltage aligns with the system power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints. Cross-reference the datasheet for thermal and environmental operating limits to guarantee reliability under intended conditions.

Oscillators Selection Notes

Select this component when a precise 4.375 MHz reference is required with low-power standby functionality. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the 1.8V supply constraint and the physical dimensions of the 4-SMD package during the initial design phase to ensure compatibility with existing board space and power infrastructure.

Oscillators Part Context

This part belongs to the Mercury Electronic Ind. Co. Ltd. series of quartz-based oscillators. The manufacturer specializes in frequency control products including crystals, filters, and various oscillator types. This specific model represents a standard XO configuration within their portfolio, offering a balance of performance and size for consumer and industrial electronics applications.

Oscillators Replacement Considerations

Direct substitutes must match the 4.375 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD package outline. Verify pinout compatibility and electrical characteristics such as jitter and stability before substitution.