18QHTF21-86.975-PD

Overview

The 18QHTF21-86.975-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 86.975 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.

Feature Summary

• LVCMOS output logic interface
• Standby power down capability
• Compact 4-SMD no lead package

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 86.975 MHz clock source is required with low voltage operation. Consider the LVCMOS compatibility with downstream digital logic levels. Evaluate the standby feature if power management is critical. Compare package dimensions against available board space constraints to ensure physical fit within the final electronic assembly.

Part Context

This part belongs to the Mercury Electronics standard XO series, characterized by SMD packaging and LVCMOS outputs. The model number indicates the specific frequency variant within the broader product line. It serves as a fundamental timing element for various electronic systems requiring stable clock signals.

Replacement Considerations

Consult the manufacturer's cross-reference list for direct substitutes. Verify electrical parameters such as frequency accuracy and supply voltage compatibility before swapping components. Ensure the replacement maintains the same package type and pin configuration.