18QHTF21-85.120-OE

Overview

The 18QHTF21-85.120-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 85.12 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a 1.8V supply voltage. It features an enable/disable control function 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

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General clock signal generation
• Digital system timing references
• Embedded electronics circuits

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 package footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics for precise electrical characteristics and reliability data.

Selection Notes

Select this component when a stable 85.12 MHz reference is required for LVCMOS-compatible digital logic. Consider the 1.8V operating voltage for low-power designs. The enable/disable feature supports power management strategies. Evaluate the small form factor for space-constrained applications. Compare performance metrics with alternative oscillators if specific jitter or stability requirements exceed standard specifications.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The manufacturer specializes in quartz crystals and oscillators, offering various frequencies and packages. This specific model represents a standard clock oscillator variant within their portfolio, targeting general-purpose electronic applications requiring precise timing signals.

Replacement Considerations

Direct substitutes must match the 85.12 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical parameters such as load current and drive level. Cross-reference with other manufacturers' equivalent parts ensuring identical functional specifications and mechanical dimensions for seamless integration.