18QHTF21-75.000-OE

Overview

The 18QHTF21-75.000-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 75.000 MHz and utilizes an LVCMOS output signal format. The device is designed for low-voltage applications, supporting a supply voltage of 1.8V. It features enable and disable control functionality to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports LVCMOS output interface for digital logic compatibility
• Includes enable and disable pin control for power management
• Designed for low-voltage operation at 1.8V
• Utilizes a compact 4-SMD no-lead surface-mount package

Applications

• General-purpose clock signal generation in embedded systems
• Timing reference sources for microprocessors and FPGAs
• Data communication interfaces requiring precise clock synchronization
• Consumer electronics with space-constrained PCB layouts

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB silkscreen and solder mask definitions. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure joint reliability.

Selection Notes

Select this component when a fixed 75.000 MHz clock source is required with low power consumption capabilities. The LVCMOS output is appropriate for standard digital logic families operating at 1.8V. Consider the enable/disable feature if system-level power gating is necessary. The small form factor makes it suitable for dense board designs where larger packages cannot fit.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature crystal oscillators. The series typically offers various frequencies and voltage options within a standardized small outline package. Mercury Electronics specializes in quartz-based timing components, providing solutions for consumer, industrial, and telecommunications markets.

Replacement Considerations

Direct replacements must match the 75.000 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify that substitute parts offer compatible electrical characteristics and mechanical dimensions. Cross-reference with other manufacturers offering similar XO specifications to ensure functional equivalence in the target application.