18QHTF21-44.900-PD

Oscillators Overview

The 18QHTF21-44.900-PD is a 44.9 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Includes standby capability for power management
• Delivers standard LVCMOS output signal integrity

Oscillators Applications

• General electronic timing circuits
• Embedded system clock generation
• Portable device power management

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 4-SMD no-lead package dimensions align with your PCB footprint constraints. Ensure the 1.8V supply rail stability meets the oscillator's operational specifications to maintain signal accuracy during production.

Oscillators Selection Notes

Select this component when a 44.9 MHz reference is required with low-power standby features. Consider the LVCMOS interface compatibility with downstream digital logic. Evaluate the thermal performance within the operating temperature range to ensure long-term reliability in the target application environment.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The manufacturer has extensive experience in quartz crystal production. This specific model represents a surface-mount option suitable for modern electronics manufacturing processes requiring small form factors.

Oscillators Replacement Considerations

Check for direct substitutes within the same Mercury Electronics family sharing identical pinout and electrical characteristics. Verify that alternative oscillators match the 44.9 MHz frequency and LVCMOS output type. Ensure any replacement maintains the 1.8V supply and 4-SMD package compatibility.