18QHTF21-82.2091-PD

Overview

The 18QHTF21-82.2091-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 82.2091 MHz and utilizes an LVCMOS output interface. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm, designed for surface-mount applications.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General clock signal generation in electronic circuits
• Digital systems requiring precise timing references
• Embedded devices utilizing LVCMOS logic levels

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power architecture. Ensure the PCB footprint matches the 2.0x1.6 mm 4-SMD no-lead package specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a low-voltage LVCMOS clock source is required in a minimal footprint. The inclusion of a power-down feature makes it suitable for battery-operated or power-sensitive designs. Ensure the application environment does not exceed the specified operating temperature range defined in the official datasheet for reliable long-term performance.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in producing crystals and oscillators. This specific model represents a standard XO variant optimized for modern low-voltage digital applications requiring small form factors.

Replacement Considerations

Cross-reference part numbers within the 18QHTF21 series for alternative frequencies. Verify pinout compatibility and electrical parameters such as supply voltage and output swing when considering substitutes from other manufacturers to ensure functional equivalence.