18QHTF21-28.891426-PD

Oscillators Overview

The 18QHTF21-28.891426-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 28.891426 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down capability
• Provides LVCMOS output signal integrity

Oscillators Applications

• Digital clock generation
• Data communication interfaces
• Embedded system 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 no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Choose this component when a precise 28.891426 MHz reference is required for LVCMOS-compatible digital circuits. The 1.8V operating voltage makes it suitable for modern low-power systems. Consider the standby feature if power management is critical. Verify that the small form factor fits within the available space on the printed circuit board.

Oscillators Part Context

This part belongs to Mercury Electronics' line of quartz crystal oscillators, established as a pioneer in Taiwan's frequency control industry since 1973. The manufacturer specializes in quartz crystals, filters, and various oscillator types including TCXOs and VCTCXOs. This specific model represents their standard XO offerings designed for reliable timing in electronic devices.

Oscillators Replacement Considerations

Direct substitutes include other Mercury models from the same series such as 18QHTF21-51.200-PD or 18QHTF21-96.768-PD, provided the frequency difference is acceptable. Cross-reference with other manufacturers offering 28.891426 MHz LVCMOS oscillators in 4-SMD packages, ensuring identical voltage and pinout compatibility.