18QHTF21-33.792-PD

Oscillators Overview

The 18QHTF21-33.792-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 33.792 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, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation with integrated standby capability
• Provides stable clock signals via LVCMOS interface
• Utilizes leadless surface-mount packaging for automated assembly

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing circuits
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent mounting issues during assembly.

Oscillators Selection Notes

Select this component when a precise 33.792 MHz reference is required for LVCMOS-compatible digital logic. Consider the 1.8V operating voltage constraint and the need for power-down functionality. Evaluate the thermal performance and size constraints of the 4-SMD package relative to other available oscillator options in your design.

Oscillators Part Context

This model belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series typically offers various frequency options within a consistent form factor. The 'PD' suffix indicates the inclusion of a power-down pin or feature, distinguishing it from non-power-managed variants in the same product line.

Oscillators Replacement Considerations

Direct substitutes must match the 33.792 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pin compatibility and electrical characteristics with alternative manufacturers such as Epson or SiTime if sourcing changes are necessary.