18QHTF21-86.905-OE

Overview

The 18QHTF21-86.905-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 86.905 MHz and utilizes LVCMOS output logic levels. The device supports an enable/disable control function and is powered by a 1.8V supply voltage. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Surface mount packaging

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications 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 to avoid assembly issues. Cross-reference the manufacturer datasheet for detailed electrical characteristics and reliability data.

Selection Notes

Select this component when a precise 86.905 MHz clock source is required with low voltage operation. The LVCMOS output is compatible with standard digital logic families. Consider the enable/disable feature if power management or clock gating is necessary for the application. Verify thermal performance and stability requirements against the official datasheet parameters.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a small form factor. The series is designed for applications requiring reliable timing signals in space-constrained environments. Mercury Electronics specializes in frequency control products, including crystals and oscillators, serving industries such as telecommunications and consumer electronics.

Replacement Considerations

Direct substitutes include other 86.905 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Check pin compatibility and envelope dimensions before replacement. Equivalent parts must match the enable/disable functionality and output drive strength. Consult distributor databases for cross-references from manufacturers like Epson, NDK, or SiTime.