SXT32421BA07-18.432M

Crystals Overview

The SXT32421BA07-18.432M is a MHz crystal manufactured by Suntsu Electronics, Inc., designed for surface-mount applications. It operates at a nominal frequency of 18.432 MHz with a load capacitance of 21 pF and an equivalent series resistance of 70 Ohms. The component utilizes a 4-SMD, No Lead package configuration. Frequency stability specifications vary across sources, with some documentation indicating ±30ppm while others list ±50ppm. The device is RoHS compliant and lead-free, ensuring adherence to environmental standards for electronic components.

Crystals Feature Summary

• Surface-mount design utilizing a 4-SMD no-lead package for automated assembly integration
• RoHS compliant and lead-free construction meeting environmental regulatory requirements
• MHz crystal type optimized for precise timing applications in electronic circuits

Crystals Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing reference for communication interfaces such as UART or SPI
• Frequency synthesis in wireless transceiver modules

Crystals Procurement Notes

Verify the specific frequency stability requirement against project needs due to conflicting data regarding ±30ppm versus ±50ppm tolerances in available sources. Confirm the exact package dimensions and soldering profile compatibility with your PCB layout before finalizing procurement decisions. Ensure that the selected variant matches the intended load capacitance of 21pF for proper oscillator circuit operation.

Crystals Selection Notes

Select this component when a standard 18.432 MHz frequency is required for digital logic timing. Consider the 70 Ohm ESR value when designing the oscillator circuit to ensure reliable startup conditions. The 4-SMD no-lead form factor is suitable for high-density board designs where space conservation is critical compared to traditional through-hole packages.

Crystals Part Context

This part belongs to the SXT324 series of crystals from Suntsu Electronics, Inc. The series offers various frequency options within the MHz range, sharing similar physical packaging characteristics. The model number indicates specific electrical parameters including the 21pF load capacitance and 18.432 MHz operating frequency, distinguishing it from other frequencies in the same product line.

Crystals Replacement Considerations

Direct substitutes include other 18.432 MHz crystals in 4-SMD no-lead packages with compatible 21pF load capacitance. Verify that alternative manufacturers offer matching ESR values and stability ratings to maintain circuit performance without redesign.