SXT2249BA27-24.576M

Crystals Overview

The SXT2249BA27-24.576M is a surface-mount crystal oscillator manufactured by Suntsu Electronics, Inc., designed for precision timing applications. It operates at a fundamental frequency of 24.576 MHz with an AT-cut design. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 80 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 2.50mm x 2.00mm. The device supports a frequency tolerance of ±30ppm and is rated for an operating temperature range of -20°C to +70°C.

Crystals Feature Summary

• Four-pad ceramic SMD construction provides enhanced grounding and electromagnetic interference shielding compared to two-lead alternatives.
• AT-cut fundamental resonance design simplifies circuit matching requirements without the need for additional inductors.
• Low aging rate specification ensures long-term frequency stability suitable for extended operational lifespans.

Crystals Applications

• Bluetooth low energy (BLE) communication modules
• Short-range wireless devices such as Zigbee transceivers
• PCMCIA cards and modem interfaces
• Industrial control systems requiring high-density board layouts

Crystals Procurement Notes

Verify the specific suffix codes against official Suntsu documentation to confirm exact tolerance and temperature grade specifications. Ensure compatibility with reflow soldering profiles for leadless surface-mount packages. Cross-reference the datasheet for precise mechanical tolerances and recommended pad layout designs to guarantee reliable electrical performance during assembly.

Crystals Selection Notes

Select this component when space constraints require a 2520 footprint but superior EMI performance is necessary. The four-terminal design offers better noise immunity than standard two-pin variants. Consider the ±30ppm tolerance and 80 Ohm ESR limits to ensure proper oscillator circuit startup and stability within the specified industrial temperature range.

Crystals Part Context

This part belongs to the SXT224 series of industrial-grade ceramic crystals from Suntsu Electronics. The series is characterized by small form factors and robust construction for demanding environments. Variants within the family differ primarily in frequency, tolerance grades, and specific thermal ratings while maintaining consistent physical dimensions and mounting styles.

Crystals Replacement Considerations

Direct substitutes include other 24.576 MHz crystals in 2520 SMD packages with similar 9pF load capacitance and comparable ESR values. Verify that alternative components support the required 4-pad configuration if EMI shielding is critical. Check for matching temperature ranges and frequency stability requirements before integration.