18QHTF21-57.383667-OE

Overview

The 18QHTF21-57.383667-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.383667 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring 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/disable functionality for power management
• Standard XO design with precise frequency stability

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure the 1.8V supply rail meets the current consumption specifications listed in the official datasheet. Confirm that the 4-SMD no-lead package dimensions align with the PCB footprint guidelines provided by the manufacturer to ensure proper solder joint integrity and mechanical reliability during assembly.

Selection Notes

Select this component when a precise 57.383667 MHz clock source is required for LVCMOS-compatible digital circuits. Consider the 1.8V operating voltage constraint and the need for software-controllable enable/disable features. Evaluate the thermal performance and frequency stability requirements against the standard XO specifications. Ensure the application environment supports the specified operating temperature range and that the compact SMD form factor fits within the available board space constraints.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series typically offers various frequencies and voltage options within a standardized small outline package. Mercury Electronics specializes in quartz-based frequency control products, including crystals, oscillators, and filters, serving industries requiring reliable timing solutions. This specific model represents a standard configuration within their portfolio of low-profile timing devices.

Replacement Considerations

Direct replacements must match the 57.383667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as drive strength and rise/fall times. Cross-reference with other manufacturers offering equivalent standard XO specifications if Mercury Electronics parts are unavailable.