18QHTF21-22.6278-PD

Oscillators Overview

The 18QHTF21-22.6278-PD is a surface-mount crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 22.6278 MHz with a stability of ±50ppm. The device supports LVCMOS output logic and functions within an operating temperature range of -40°C to 85°C. It requires a maximum supply current of 22mA and utilizes a 4-SMD, No Lead package for mounting.

Oscillators Feature Summary

• Supports LVCMOS output logic levels
• Includes standby or power down functionality
• Designed for surface mount assembly

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and package dimensions against the official datasheet before integration. Confirm that the LVCMOS voltage levels match the target system requirements. Ensure the operating temperature range meets the environmental conditions of the final application to guarantee long-term reliability and performance stability.

Oscillators Selection Notes

Select this component when a precise 22.6278 MHz reference is required in a compact surface-mount form factor. Consider the ±50ppm stability specification for applications sensitive to timing drift. Evaluate the 22mA maximum current consumption against available power budgets. Verify compatibility with the host controller's input logic thresholds and physical footprint constraints.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies including 51.2 MHz and 6.0 MHz variants. These components are designed for general-purpose clocking needs in consumer and industrial electronics, providing reliable quartz-based frequency control in small packages.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series parts such as 18QHTF21-51.200-PD or 18QHTF21-6.000-PD if different frequencies are acceptable. Cross-brand replacements require matching LVCMOS logic, 4-SMD no-lead package, and similar electrical characteristics.