18QHTF21-75.280-PD

Overview

The 18QHTF21-75.280-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 75.280 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes standby mode functionality for power management
• Utilizes a lead-free 4-SMD surface-mount package design

Applications

• Digital signal processing circuits requiring stable clock sources
• Communication equipment utilizing LVCMOS interfaces
• Portable electronic devices necessitating low-power oscillators

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply rail aligns with the system's power architecture. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions specified by the manufacturer to guarantee proper soldering and electrical connection.

Selection Notes

Select this component when a 75.280 MHz clock signal is required within a 1.8V logic environment. The choice is appropriate for designs prioritizing low power consumption through standby capabilities. Consider the physical constraints of the 4-SMD package when determining board layout density and thermal management strategies for the target application.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down feature. This specific model provides a fixed 75.280 MHz output, distinguishing it from other variants in the lineup that may offer different frequencies or voltage levels.

Replacement Considerations

Direct substitutes must match the 75.280 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics with alternative manufacturers. Cross-reference with Mercury Electronics' own product line for updated revisions or equivalent parts with identical specifications.