18QHTF21-74.03125-PD

Overview

The 18QHTF21-74.03125-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 74.03125 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic
• Features a small surface-mount package

Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper assembly and electrical connectivity.

Selection Notes

Select this component when a precise 74.03125 MHz clock source is required for low-power applications. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage and standby capabilities if power efficiency is a critical design parameter for the target electronic system.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The series offers various frequencies within a standardized 2.0x1.6 mm SMD package, providing consistent form factors for designers requiring reliable timing solutions across different frequency points.

Replacement Considerations

Check datasheets for compatible oscillators offering identical 74.03125 MHz frequency, 1.8V supply, and LVCMOS output. Verify pinout compatibility and package dimensions to ensure direct replacement without PCB redesign.