18QHTF21-44.550-PD

Oscillators Overview

The 18QHTF21-44.550-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 44.55 MHz with LVCMOS output logic and a 1.8V supply voltage. The device features a Standby (Power Down) control function and is housed in a compact 4-SMD, No Lead package.

Oscillators Feature Summary

• Supports low power consumption via standby mode
• Provides stable clock signals for digital circuits

Oscillators Applications

• Data communication equipment
• Consumer electronics
• Industrial control systems

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V operating voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB layout constraints to avoid assembly issues.

Oscillators Selection Notes

Select this component when a precise 44.55 MHz clock source is required for LVCMOS-compatible devices. Consider the 1.8V supply constraint and the need for power management capabilities. Evaluate the physical size of the 4-SMD package against available board space compared to larger through-hole alternatives.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount oscillators. The series is designed for applications requiring small form factors and low power consumption. Mercury Electronics has a long history in quartz crystal manufacturing, providing reliable frequency control solutions.

Oscillators Replacement Considerations

Direct substitutes may include other 44.55 MHz LVCMOS oscillators from different manufacturers with identical pinouts and voltage levels. Verify compatibility regarding operating temperature range and output drive strength before swapping components.