18QHTF21-75.4975-PD

Overview

The 18QHTF21-75.4975-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 75.4975 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 with dimensions of 2.0x1.6 mm.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 75.4975 MHz clock source is required with low power consumption capabilities. The LVCMOS output is suitable for standard digital logic interfaces. Consider the standby feature if power efficiency is critical. Verify compatibility with the 1.8V operating voltage and ensure the small form factor fits within the available board space constraints.

Part Context

This part belongs to the Mercury Electronics XO series, designed for standard clock applications. The model number indicates a 75.4975 MHz frequency variant within the 18QHTF21 family. The suffix PD denotes the inclusion of power-down control. This series provides reliable frequency control solutions for various electronic devices requiring stable clock signals.

Replacement Considerations

Direct substitutes must match the 75.4975 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications before substitution.