18QHTF21-75.540-PD

Overview

The 18QHTF21-75.540-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 75.54 MHz and utilizes LVCMOS output logic levels. 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 interface
• Standby (Power Down) capability
• Compact 4-SMD no-lead form factor

Applications

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

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 target system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 75.54 MHz reference is required for low-voltage digital applications. The LVCMOS output ensures compatibility with standard logic families. Consider the power-down feature if system efficiency is critical. Verify that the 2.0x1.6 mm package size fits within the available board space constraints compared to larger oscillator packages.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount crystal oscillators. The series typically offers various frequencies and voltage options within a standardized small outline package. Mercury Electronics specializes in quartz crystals and timing devices, providing components for consumer electronics and industrial applications requiring stable frequency sources.

Replacement Considerations

Direct substitutes may include other 75.54 MHz LVCMOS oscillators in a 4-SMD 2.0x1.6mm package from different manufacturers. Ensure pinout compatibility and identical electrical characteristics such as supply voltage and output swing. Cross-reference datasheets for thermal and environmental specifications to maintain system reliability.