18QHTF21-73.300-OE

Overview

The 18QHTF21-73.300-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 73.3 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function via pin-enabling circuitry. It is housed in a compact 4-SMD, No Lead package with dimensions of 0.063 inches in length. The component is rated for an operating temperature range of -40°C to 85°C and maintains a frequency stability of ±50ppm.

Feature Summary

• Integrates pin-enabling circuitry for active low power management
• Provides stable LVCMOS clock signals for digital systems
• Designed for high reliability within industrial temperature ranges

Applications

• High-speed data communication interfaces
• Network infrastructure equipment
• Industrial control systems requiring precise timing

Procurement Notes

Verify the specific suffix 'OE' against official datasheets to confirm availability of the enable/disable feature and exact electrical characteristics. Ensure the 1.8V supply requirement aligns with system design constraints. Cross-reference the 4-SMD no-lead package dimensions for PCB layout compatibility. Confirm the ±50ppm stability meets application requirements before finalizing procurement.

Selection Notes

Select this component when a 73.3 MHz clock source with LVCMOS outputs is required. Consider the 1.8V supply voltage and enable/disable functionality for power-sensitive designs. Evaluate the -40°C to 85°C operating range against environmental conditions. Compare package size and stability specifications with alternative oscillators to ensure fit for the target application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The 18QHTF21-73.300-OE specifically targets applications needing a 73.3 MHz signal. It shares the same physical footprint and basic interface as other variants in the family but differs in frequency and specific electrical parameters.

Replacement Considerations

Direct substitutes include other 73.3 MHz LVCMOS oscillators in 4-SMD packages with similar stability and voltage ratings. Verify pinout compatibility and enable/disable functionality when replacing. Check manufacturer datasheets for equivalent parts from other vendors offering identical specifications.