SXT1149AA07-38.400M

Crystals Overview

The SXT1149AA07-38.400M is a surface-mount crystal oscillator manufactured by Suntsu Electronics, Inc., designed for precise frequency control applications. It operates at a nominal frequency of 38.4 MHz with a load capacitance of 9 pF and an equivalent series resistance of 100 Ohms. The component features a four-terminal SMD package without leads, ensuring compact integration into electronic circuits. It maintains a frequency stability of ±50 ppm across the operating temperature range of -20°C to +70°C, providing reliable timing performance for digital systems requiring stable clock signals.

Crystals Feature Summary

• Surface-mount design with no lead construction for automated assembly
• High frequency stability within specified temperature ranges
• Compact footprint suitable for space-constrained PCB layouts

Crystals Applications

• Digital signal processing systems
• Microcontroller clock sources
• Communication interface modules

Crystals Procurement Notes

Verify the exact datasheet specifications directly from Suntsu Electronics before procurement, as distributor listings may contain generic representations rather than part-specific data. Confirm that the 4-SMD no-lead package matches your board design requirements. Ensure the ±50 ppm tolerance aligns with your system's timing constraints. Cross-reference the load capacitance of 9 pF with your circuit design to avoid frequency deviation issues during implementation.

Crystals Selection Notes

Select this component when a 38.4 MHz reference frequency is required in a small form factor. The ±50 ppm stability is suitable for general-purpose digital timing rather than high-precision metrology. Consider the -20°C to +70°C industrial temperature range if the application operates in variable environmental conditions. The SMD package facilitates reflow soldering processes, making it appropriate for high-volume manufacturing environments where consistent placement accuracy is critical.

Crystals Part Context

This crystal belongs to Suntsu Electronics' SXT1149 series, which focuses on surface-mount frequency control solutions. The manufacturer provides various frequency options within this series to support different clocking needs. The SXT1149AA07 variant specifically denotes the package style and terminal configuration. Suntsu Electronics positions these components as alternatives to discontinued or legacy crystal offerings, emphasizing reliability and seamless replacement capabilities for existing designs.

Crystals Replacement Considerations

Direct substitutes include other 38.4 MHz crystals with identical 9 pF load capacitance and 100 Ohm ESR in a 4-SMD no-lead package. Verify pin compatibility and thermal characteristics before substitution. Generic industry replacements must match the ±50 ppm stability requirement to ensure system timing integrity.