18QHTF21-44.260-PD

Oscillators Overview

The 18QHTF21-44.260-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 44.26 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down capability for energy management. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount applications.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS signal output compatibility

Oscillators Applications

• Digital clock generation in embedded systems
• Timing reference for communication interfaces
• Power management circuits requiring standby control

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB layout accommodates the 4-SMD no-lead package dimensions to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this component when a precise 44.26 MHz timing source is required with minimal power consumption. The integrated power-down feature makes it suitable for battery-operated devices. Ensure the host system supports LVCMOS logic levels and can provide a stable 1.8V supply without significant noise interference affecting frequency stability.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers various frequency options within a standardized small form factor, catering to modern electronics requiring reliable timing solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 44.26 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar XO specifications if Mercury Electronics stock is unavailable.