SXT22421BA16-12.288M

Crystals Overview

The SXT22421BA16-12.288M is a ceramic surface-mount crystal oscillator from Suntsu Electronics, Inc., housed in a 2520 (2.5mm x 2.0mm) four-pad package. It operates at a fundamental frequency of 12.288 MHz with a load capacitance of 21 pF and an equivalent series resistance of 120 Ohms. The component features a frequency tolerance of ±30 ppm and a frequency stability of ±30 ppm over the operating temperature range of -10°C to +60°C. Designed for high-reliability applications, it utilizes AT-cut technology to ensure stable performance in compact wireless and industrial electronic systems.

Crystals Feature Summary

• Four-pad ceramic SMD construction provides enhanced grounding and electromagnetic interference shielding compared to standard two-pin designs.
• AT-cut fundamental mode operation ensures reliable oscillation startup without requiring additional matching inductors.
• Compact 2520 footprint supports high-density printed circuit board layouts for space-constrained portable devices.

Crystals Applications

• Bluetooth low energy modules
• Short-range wireless communication devices
• PCMCIA interface equipment
• Industrial control systems

Crystals Procurement Notes

Verify the specific operating temperature range (-10°C to +60°C) against application requirements, as this model does not cover the full industrial -40°C to +85°C range. Confirm that the 120 Ohm ESR aligns with the host oscillator circuit design to guarantee proper startup conditions. Ensure the 21 pF load capacitance matches the system's internal capacitance specifications to maintain frequency accuracy within the specified ±30 ppm tolerance.

Crystals Selection Notes

Select this component when a small 2520 footprint is required alongside improved EMI performance due to the four-pad ground shield. It is suitable for applications where the operating environment remains between -10°C and +60°C. Choose this part if the design requires a fundamental mode crystal with moderate frequency stability of ±30 ppm. Consider alternative models within the SXT224 series if wider temperature ranges or tighter frequency tolerances are necessary for the specific project constraints.

Crystals Part Context

This part belongs to the SXT224 series of industrial-grade ceramic surface-mount crystals. The series is characterized by its four-pad design, which offers superior noise immunity compared to traditional two-terminal packages. The SXT224 line covers various frequencies and package sizes, providing engineers with options for balancing size, cost, and performance in wireless and consumer electronics applications.

Crystals Replacement Considerations

Direct substitutes must match the 2520 footprint, 12.288 MHz frequency, 21 pF load capacitance, and -10°C to +60°C temperature range. Verify ESR compatibility and four-pad configuration to maintain EMC performance. Cross-reference with other manufacturers' 2520 4-pad crystals if Suntsu availability is limited.