18QHTF21-40.9344-PD

Oscillators Overview

The 18QHTF21-40.9344-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.9344 MHz and utilizes LVCMOS output logic. 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, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

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

Oscillators Applications

• Digital signal processing circuits
• Communication equipment timing
• Embedded system clock generation

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and output types. Confirm that the 4-SMD package dimensions align with the target PCB footprint. Check datasheet specifications for operating temperature ranges and load capacitance requirements before integration into final designs.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling. The integrated power-down feature makes it suitable for battery-operated devices. Ensure the application can accommodate the small form factor of the 4-SMD package while meeting thermal and electrical constraints defined in the official documentation.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal and oscillator products. The manufacturer has decades of experience in frequency control solutions. This specific model represents a standard XO variant designed for general-purpose timing applications in modern electronic systems.

Oscillators Replacement Considerations

Compatible substitutes within the same series include models such as 18QHTF21-51.200-PD, 18QHTF21-48.7056-PD, and 18QHTF21-96.768-PD. These alternatives share identical packaging and electrical characteristics but differ in operating frequency. Verify frequency requirements before substitution.