SXT2248BA07-20.000M

Crystals Overview

The SXT2248BA07-20.000M is a 20 MHz AT-cut fundamental mode crystal resonator manufactured by Suntsu Electronics, Inc. It features an 8 pF load capacitance and an equivalent series resistance (ESR) of 80 Ohms. The component operates within a temperature range of 0°C to +70°C, offering a frequency tolerance of ±30 ppm at normal temperature and a stability of ±50 ppm across the operating range. Packaged in a compact 4-SMD, no lead form factor with dimensions of 2.5 mm x 2.0 mm, it utilizes a four-pad design for enhanced grounding and electromagnetic interference shielding.

Crystals Feature Summary

• Four-pad surface mount design provides dedicated ground connections for improved electromagnetic interference shielding compared to standard two-pin variants.
• AT-cut fundamental resonance ensures simple oscillator circuit requirements without the need for additional matching inductors.
• Industrial-grade ceramic package construction supports reliable operation in high-density printed circuit board layouts.

Crystals Applications

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

Crystals Procurement Notes

Verify that the specific application environment remains within the documented 0°C to +70°C operating temperature range, as wider industrial grades are available in other model variants. Confirm that the system oscillator circuit can accommodate the specified 80 Ohm ESR limit to ensure reliable startup conditions. Ensure the PCB layout accommodates the 4-SMD footprint and properly connects all four pads, particularly the ground pins, to maintain the intended shielding performance.

Crystals Selection Notes

Select this component when a small 2520 footprint is required alongside superior noise immunity provided by the four-pad structure. It is suitable for designs where moderate frequency accuracy is acceptable but strict thermal stability is not critical. Consider alternative models if the application requires operation below 0°C or demands tighter frequency tolerances than ±30 ppm. This part is ideal for cost-sensitive wireless projects needing reliable baseline performance.

Crystals Part Context

This component belongs to the SXT224 series of surface-mount crystals from Suntsu Electronics. The series is characterized by its small 2.5x2.0 mm ceramic package and four-terminal configuration. The series supports various frequencies and load capacitances, catering to diverse consumer and industrial electronics needs requiring compact timing solutions.

Crystals Replacement Considerations

Direct substitutes include other SXT224 series parts with compatible electrical parameters. Verify that any replacement maintains the 4-SMD no-lead package type and matches the 8 pF load capacitance requirement. Check that the substitute's ESR and frequency tolerance meet the original circuit design specifications.