18QHTF21-73.000-OE

Overview

The 18QHTF21-73.000-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a nominal frequency of 73.000 MHz and utilizes LVCMOS output logic levels. The device supports an enable/disable control function for power management flexibility. It is designed to operate with a supply voltage of 1.8V, ensuring compatibility with low-voltage digital systems. The component is housed in a compact 4-SMD, no lead package, suitable for surface-mount assembly processes. This configuration provides reliable timing signals for high-speed data transmission and processing applications requiring precise clock synchronization.

Feature Summary

• Supports enable and disable functionality for dynamic power control
• Delivers stable LVCMOS output signals for digital interfacing
• Utilizes a compact 4-SMD no lead package for space-constrained designs

Applications

• High-speed data communication interfaces
• Digital signal processing circuits
• Network equipment clocking systems

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable/disable pin configuration matches your control logic. Check the operating temperature range to guarantee performance under your environmental conditions. Validate the package dimensions against your PCB footprint to ensure proper mechanical fit during assembly.

Selection Notes

Choose this oscillator when a 73.000 MHz reference is required for LVCMOS-compatible digital logic. Select it for applications needing active power management via the enable pin. Consider this part for designs constrained by the 4-SMD no lead form factor. Evaluate its suitability for systems operating strictly at 1.8V. Compare its stability and phase noise characteristics against other available options if strict jitter performance is critical for your application.

Part Context

Mercury Electronic Ind. Co. Ltd specializes in frequency control products, including quartz crystals and oscillators. The 18QHTF21 series represents their standard XO offerings. These components are engineered for reliability in consumer and industrial electronics. The manufacturer leverages decades of experience in quartz technology. This specific model fits within their portfolio of low-profile surface-mount devices.

Replacement Considerations

Direct substitutes must match the 73.000 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no lead package. Verify equivalent electrical parameters such as current consumption and stability. Ensure pinout compatibility for the enable/disable function. Cross-reference with other manufacturers offering similar SMD oscillators if Mercury Electronics parts are unavailable.