18QHTF21-57.27272-PD

Overview

The 18QHTF21-57.27272-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.27272 MHz with an LVCMOS output logic level. The device supports a supply voltage of 3.3V and features a standard package type designated as PD. Physical dimensions are specified as 5.0mm in length and 3.2mm in width, classifying it within the micro dimensional product category.

Feature Summary

• Produces a stable 57.27272 MHz clock signal using LVCMOS output logic
• Operates on a 3.3V power supply for low-voltage applications
• Utilizes a compact 5.0 x 3.2 mm surface-mount package design

Applications

• General purpose clock generation for digital circuits
• Timing reference for communication interfaces
• System clock source for embedded processors

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 3.3V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 5.0x3.2mm package dimensions to prevent assembly issues during manufacturing.

Selection Notes

Select this component when a precise 57.27272 MHz timing source is required for systems operating at 3.3V. The LVCMOS output interface ensures compatibility with standard digital logic families. Consider the physical size constraints of the application to ensure the 5.0x3.2mm package fits within the available board space without interference.

Part Context

This part belongs to the 18QHTF series of micro dimensional oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix indicates the specific package style and pin configuration used for surface mounting. This model represents a fixed-frequency solution rather than a programmable variant.

Replacement Considerations

Direct substitutes must match the 57.27272 MHz frequency, 3.3V supply, and LVCMOS output. Check for equivalent packages such as 4-SMD No Lead variants from other manufacturers if availability is an issue. Verify electrical parameters closely to ensure functional interchangeability.