18QHTF21-75.475-PD

Overview

The 18QHTF21-75.475-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 75.475 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, designed for surface-mount applications.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm exact electrical characteristics and packaging details. Ensure compatibility with the target operating temperature range and supply voltage requirements before integration into the design.

Selection Notes

Select this component when a low-profile surface-mount oscillator with LVCMOS outputs is required. Consider the 1.8V supply constraint and the availability of the standby feature for power-sensitive designs. Confirm that the 4-SMD package dimensions fit the PCB layout constraints.

Part Context

This model belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The brand has a history of manufacturing quartz crystals and oscillators, positioning itself as a pioneer in the Taiwan frequency control industry since 1973.

Replacement Considerations

Other models within the 18QHTF21 series from Mercury Electronics offer different frequencies but share similar package and logic characteristics. Cross-reference specific frequency requirements when evaluating substitutes.