18QHTF21-49.4667-OE

Overview

The 18QHTF21-49.4667-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fundamental frequency of 49.4667 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable functionality for power management
• Standard crystal oscillator design using quartz base resonator

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application circuit before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout design. Request the official datasheet from Mercury Electronics for precise electrical characteristics and reliability data.

Selection Notes

Select this component when a low-profile, single-ended clock source is required for 1.8V logic systems. The enable pin allows for dynamic power control during idle states. Consider the operating temperature range and stability specifications relative to the environmental conditions of the end product. Compare package dimensions against available board space constraints.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies within the standard XO category. The suffix OE indicates a specific configuration or ordering variant. Mercury Electronics specializes in frequency control products including crystals, filters, and oscillators, providing solutions for timing applications across multiple industries.

Replacement Considerations

Direct replacements must match the 49.4667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical parameters such as current consumption and phase noise if critical. Cross-reference with other manufacturers offering similar small-form-factor oscillators with enable functions.