SXT2248BA07-27.000M

Crystals Overview

The SXT2248BA07-27.000M is a surface-mount ceramic crystal oscillator manufactured by Suntsu Electronics, Inc., operating at a nominal frequency of 27.000 MHz. It features a compact 2.5mm x 2.0mm package with four solder pads and utilizes an AT-cut fundamental resonance design. The component supports a load capacitance of 8 pF and exhibits a maximum equivalent series resistance (ESR) of 80 Ohms within the 20–30 MHz range. Frequency tolerance is specified at ±30 ppm, with a stability rating of ±30 ppm across the commercial temperature range of -10°C to +70°C.

Crystals Feature Summary

• Four-pad surface mount configuration provides enhanced grounding and electromagnetic interference shielding compared to two-pin alternatives.
• AT-cut fundamental resonance design simplifies circuit requirements by eliminating the need for additional matching inductors.

Crystals Applications

• Bluetooth and short-range wireless communication devices
• PCMCIA cards and modem applications
• Industrial control systems requiring high-density board layouts

Crystals Procurement Notes

Verify that the specific application environment remains within the -10°C to +70°C commercial temperature range, as industrial grade variants exist within this series. Confirm that the system clock circuit can accommodate the 80 Ohm ESR limit at 27 MHz. Ensure the PCB footprint matches the 2.5mm x 2.0mm dimensions and that the 8 pF load capacitance aligns with the host controller's internal capacitance settings.

Crystals Selection Notes

Select this component when space constraints require a 2520 footprint but signal integrity demands the superior noise immunity of a four-pad grounded design. It is suitable for cost-sensitive projects where ±30 ppm stability meets protocol requirements. Consider higher stability grades if the application operates outside the commercial temperature range or requires tighter frequency adherence for long-term synchronization.

Crystals Part Context

This part belongs to the SXT224 series of industrial-grade ceramic SMD crystals from Suntsu Electronics. The series is engineered for RF applications, offering various load capacitances and stability options. The four-pad construction distinguishes it from standard two-pin crystals, providing better performance in high-interference environments typical of modern wireless IoT devices.

Crystals Replacement Considerations

Direct substitutes include other SXT224 series parts with identical 27.000 MHz frequency and 8 pF load capacitance, such as the SXT2248EC17-27.000M, provided the stability and temperature specifications meet the design requirements. Verify pin compatibility and ESR limits before substitution.