18QHTF21-16.789-OE

Oscillators Overview

The 18QHTF21-16.789-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 16.789 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features an integrated enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly processes in space-constrained electronic designs.

Oscillators Feature Summary

• LVCMOS output interface for digital signal compatibility
• 1.8V operating voltage with enable/disable functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Low-voltage digital circuit clocking
• Portable electronic devices requiring small form factors
• Embedded systems with power management constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. 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 to avoid assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliability during production.

Oscillators Selection Notes

Select this component when a precise 16.789 MHz clock source is required for LVCMOS-compatible circuits. The 1.8V operation makes it suitable for modern low-power applications. Consider the enable/disable feature if dynamic power saving is necessary. The small SMD package is ideal for high-density board designs where space is limited compared to larger through-hole or standard SMD oscillator packages.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various frequencies such as 37.888 MHz and 86.8875 MHz, all sharing similar package and electrical characteristics. Mercury Electronic has a long history in manufacturing quartz crystals and oscillators, positioning itself as a pioneer in the Taiwan crystal industry since 1973.

Oscillators Replacement Considerations

Direct substitutes within the same series include models like 18QHTF21-16.764166-OE for slightly different frequency needs. Other variants in the 18QHTF21 family offer different frequencies but maintain the same 1.8V LVCMOS and 4-SMD package. Verify that any replacement maintains the exact frequency requirement and package dimensions for seamless integration.