18QHTF21-75.540-OE

Overview

The 18QHTF21-75.540-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 75.54 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes enable/disable functionality. It features a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C. The maximum supply current is 26mA. The component utilizes a 4-SMD, No Lead surface mount package for integration into electronic circuits.

Feature Summary

• Standard crystal oscillator configuration with LVCMOS output interface
• Integrated enable and disable control capability for power management
• Surface mount design utilizing a compact 4-SMD no lead package
• Operational stability defined by ±50ppm frequency tolerance

Applications

• General purpose clock signal generation in digital systems
• Timing reference sources for communication interfaces
• Embedded controller clock inputs requiring low profile mounting

Procurement Notes

Verify the specific ordering suffix OE against the manufacturer's official documentation to ensure compatibility with required voltage levels and output types. Confirm that the 4-SMD no lead package dimensions align with the target PCB footprint. Cross-reference the ±50ppm stability specification with system timing requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 75.54 MHz clock source is required with LVCMOS compatibility. Ensure the 1.8V supply rail matches the system voltage. Consider the 4-SMD no lead package for space-constrained designs. Verify that the ±50ppm stability meets the application's jitter and drift constraints within the specified industrial temperature range.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of standard crystal oscillators. The series provides various frequencies and voltage options using a consistent surface mount form factor. Mercury Electronics specializes in quartz crystals and timing components, offering this oscillator as a solution for precise clock generation in consumer and industrial electronics.

Replacement Considerations

Direct substitutes must match the 75.54 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no lead package. Verify pinout compatibility and thermal characteristics. Check if alternative manufacturers offer equivalent ±50ppm stability and enable/disable functionality without requiring circuit redesign.