18QHTF21-40.775-PD

Oscillators Overview

The 18QHTF21-40.775-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 40.775 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption during inactive periods. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Integrates a standby mode for power management
• Utilizes a leadless SMD package for space-constrained designs

Oscillators Applications

• Digital signal processing clock sources
• Communication equipment timing references
• Embedded system microcontroller clocks

Oscillators Procurement Notes

Verify the specific suffix 'PD' against official Mercury Electronics documentation to confirm the presence of the power-down feature. Ensure the operating temperature range meets the application requirements. Cross-reference the 4-SMD no-lead footprint dimensions with the target PCB layout to guarantee mechanical fit and soldering reliability.

Oscillators Selection Notes

Select this component when a 1.8V supply and LVCMOS interface are required. Consider the 40.775 MHz frequency as a fixed parameter rather than a variable option. Evaluate the thermal performance within the specified operating range. Confirm that the standby functionality aligns with the system's power efficiency goals.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, characterized by standard frequency stability and low-voltage operation. The model number indicates the specific frequency and package type. It serves as a precise timekeeping element for electronic circuits requiring stable clock signals without the complexity of programmable oscillators.

Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and electrical specifications before considering alternative manufacturers. Consult official distributor databases for direct cross-references.