18QHTF21-50.2233-PD

Overview

The 18QHTF21-50.2233-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 50.2233 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for standard digital interface compatibility
• Includes standby mode capability to reduce power consumption during idle periods
• Utilizes quartz crystal technology for stable frequency generation

Applications

• General purpose clock signal generation in electronic circuits
• Timing reference for digital systems requiring 50.2233 MHz stability
• Embedded applications utilizing low voltage 1.8V logic families

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Confirm that the 4-SMD no-lead package footprint matches the PCB design requirements. Ensure the 1.8V supply voltage aligns with the target system's power architecture to guarantee proper operation and longevity of the component.

Selection Notes

Select this component when a precise 50.2233 MHz clock source is required within a constrained physical space. The choice is driven by the need for LVCMOS compatibility and low voltage operation at 1.8V. Consider the standby feature if power efficiency is critical. Validate that the thermal performance meets the application's environmental conditions.

Part Context

This oscillator belongs to the Mercury Electronics XO series, designed for surface-mount applications. The 'PD' suffix indicates the inclusion of a power-down or standby control feature. The product line emphasizes compact form factors suitable for modern portable and high-density electronic devices requiring reliable timing solutions.

Replacement Considerations

Direct substitutes must match the 50.2233 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical specifications such as phase noise and stability before swapping. Generic oscillators may not support the specific standby functionality without additional circuitry.