18QHTF21-86.140-OE

Overview

The 18QHTF21-86.140-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 86.14 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

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

Applications

• Computing systems
• Testing equipment
• Metering devices

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD footprint matches the PCB layout to avoid assembly issues. Cross-reference the part number suffix with official documentation to confirm the exact electrical characteristics and packaging details provided by the manufacturer.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific 86.14 MHz clock signal. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs. Consider the small form factor of the 4-SMD package for space-constrained layouts. Verify that the LVCMOS output swing is compatible with the receiving logic inputs of the downstream components in the application circuit.

Part Context

This oscillator belongs to the Mercury Electronics series of quartz-based timing devices. The company specializes in frequency control products, including crystals and oscillators, leveraging decades of experience in the Taiwan quartz industry. This specific model represents a standard XO variant within their portfolio, targeting general-purpose digital timing needs.

Replacement Considerations

Direct substitutes must match the 86.14 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check datasheets for equivalent parts from other manufacturers offering similar enable/disable functionality and pinout configurations to ensure mechanical and electrical interchangeability.