18QHTF21-67.200-PD

Overview

The 18QHTF21-67.200-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 67.2 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, suitable for surface-mount applications.

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 part number suffix to ensure compatibility with required voltage levels and output types. Confirm that the 4-SMD no-lead package dimensions align with the target PCB footprint. Ensure the selected variant supports the necessary operating temperature range for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. Consider the integrated power-down feature if system-level power efficiency is a priority. Verify that the 67.2 MHz frequency matches the precise timing requirements of the host circuitry and that the small form factor fits within the available board space constraints.

Part Context

This model belongs to the Mercury Electronics 18QHTF series of standard crystal oscillators. The series typically offers various frequencies and voltage options within similar compact packages. This specific part represents a fixed-frequency solution designed for applications requiring stable clock signals without the complexity of programmable devices.

Replacement Considerations

Direct substitutes include other 67.2 MHz LVCMOS oscillators from Mercury Electronics such as the 18QHTF21-67.000-PD, provided the frequency tolerance meets system requirements. Cross-manufacturer replacements must match the 1.8V supply, LVCMOS output, and 4-SMD package dimensions to ensure mechanical and electrical compatibility.