SXMH12.288F2020F30

Crystals Overview

The SXMH12.288F2020F30 is a passive quartz crystal resonator manufactured by Shenzhen SCTF Electronics. It operates at a fundamental frequency of 12.288 MHz with a load capacitance of 20 pF and a frequency tolerance of ±20 ppm. The component utilizes HC-49S-SMD surface-mount packaging and features an equivalent series resistance of 35 Ohms. It maintains a frequency stability of ±30 ppm across an operating temperature range of -40°C to +85°C. This sealed unit is designed for high reliability and cost-effective integration into electronic circuits requiring precise timing references.

Crystals Feature Summary

• Sealed quartz construction utilizing resistance welding for enhanced structural integrity
• Surface-mount design compatible with automated assembly processes
• Lead-free composition compliant with RoHS environmental standards

Crystals Applications

• Microcontroller clock source generation
• Communication interface timing circuits
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific package variant, as HC-49S-SMD dimensions may vary slightly between manufacturers. Confirm that the 35 Ohm ESR aligns with the oscillator circuit requirements. Ensure the ±20 ppm initial tolerance meets the system's frequency accuracy specifications. Check for any specific soldering profile recommendations provided in the official datasheet to prevent thermal damage during reflow.

Crystals Selection Notes

Select this component when a standard 12.288 MHz reference is required for digital logic or communication protocols. The HC-49S-SMD form factor offers a balance between mechanical robustness and space efficiency. Consider the ±30 ppm stability over temperature if the application operates in varying thermal environments. Verify compatibility with existing PCB footprints before finalizing the design.

Crystals Part Context

This part belongs to the SCTF SXMH series of passive crystals. The series includes various frequencies such as 12.000 MHz and 7.3728 MHz within the same HC-49S-SMD package family. These components are generally used as primary timekeeping elements in consumer electronics and industrial control systems where stable oscillation is critical for data synchronization.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' HC-49S-SMD crystals with identical 12.288 MHz frequency, 20 pF load capacitance, and similar ESR values. Ensure replacement parts meet the same ±20 ppm tolerance and temperature range specifications to maintain system performance.