18QHTF21-18.550-PD

Oscillators Overview

The 18QHTF21-18.550-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.55 MHz and utilizes LVCMOS output logic levels. 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 surface-mount package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• LVCMOS output interface
• Integrated power-down capability
• Compact surface-mount form factor

Oscillators Applications

• General electronic circuits requiring precise timing
• Embedded systems utilizing low-voltage logic
• Portable devices requiring power efficiency

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions to guarantee proper assembly and electrical connectivity during manufacturing.

Oscillators Selection Notes

Select this component when a standard LVCMOS clock signal is required at 18.55 MHz within a constrained space. The integrated power-down feature makes it suitable for battery-operated applications where standby current reduction is critical. Ensure the operating temperature range meets the environmental specifications of the target application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of oscillators from Mercury Electronic. The manufacturer specializes in quartz crystals and frequency control products, leveraging decades of experience in Taiwan's electronics industry. This series represents their surface-mount oscillator offerings designed for modern miniaturized electronic assemblies.

Oscillators Replacement Considerations

Direct substitutes must match the 18.55 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD No Lead package. Verify pin compatibility and thermal characteristics before swapping. Generic equivalents may differ in phase noise or startup time.