SXMH27.000F2020F30

Crystals Overview

The SXMH27.000F2020F30 is a passive quartz crystal resonator manufactured by Shenzhen SCTF Electronics. It operates at a fundamental frequency of 27 MHz with a load capacitance of 20 pF and a frequency tolerance of ±20 ppm. The component utilizes an HC-49/US package style, featuring a sealed metal can construction designed for surface mount or through-hole integration. Key electrical parameters include a series resistance of 25 ohms and a stability rating suitable for standard clock applications. The device is engineered to function within a temperature range of -40°C to +85°C, ensuring reliable performance in various electronic circuits requiring precise timing references.

Crystals Feature Summary

• Sealed quartz crystal construction utilizing resistance welding techniques for enhanced durability.
• Compliant with RoHS standards, ensuring environmental safety and lead-free composition.
• High stability design optimized for consistent frequency generation across wide temperature ranges.
• Versatile packaging options supporting both surface mount and through-hole assembly methods.

Crystals Applications

• Microcontroller clock source generation
• Communication module timing references
• Consumer electronics oscillator circuits

Crystals Procurement Notes

Verify the specific package variant (HC-49SMD vs HC-49U) matches the target PCB footprint, as naming conventions may vary between distributors. Confirm the load capacitance requirement of the host circuit aligns with the 20pF specification to ensure accurate frequency operation. Check for any specific moisture sensitivity levels if the manufacturing date code indicates long-term storage. Ensure the supplier provides traceability documentation for quality assurance purposes.

Crystals Selection Notes

Select this component when a 27 MHz reference signal is required with moderate stability needs. The 25-ohm series resistance suits standard driver circuits without excessive loading. Consider the operating temperature range against the final application environment. The HC-49 form factor offers mechanical robustness compared to smaller surface-mount crystals, making it suitable for applications requiring higher vibration resistance.

Crystals Part Context

This part belongs to the SXMH series of passive crystals from SCTF, characterized by sealed metal cans and high reliability. The series typically covers various frequencies with standardized load capacitances. The model number encodes key specifications: 27.000 indicates the frequency, F denotes tolerance, 2020 refers to load capacitance, and F30 specifies the package type. This series is widely used in general-purpose timing applications where cost-effectiveness and proven reliability are prioritized over ultra-high precision.

Crystals Replacement Considerations

Direct substitutes must match the 27 MHz frequency, 20pF load capacitance, and HC-49 package dimensions. Verify that alternative manufacturers offer comparable series resistance and temperature stability. Cross-reference pin compatibility if using different mounting styles. Ensure the replacement component meets the same RoHS compliance standards.