SXT22420AA48-27.000M

Crystals Overview

The SXT22420AA48-27.000M is a 27 MHz AT-cut fundamental mode crystal oscillator from the Suntsu SXT224 series. It features a 2.5mm x 2.0mm 4-pad surface-mount package with no leads. The component operates within a -40°C to +85°C temperature range and maintains a frequency tolerance of ±50ppm. It utilizes a 20pF load capacitance and exhibits a maximum equivalent series resistance (ESR) of 60 Ohms at this frequency. The device supports standard SMT assembly processes.

Crystals Feature Summary

• Four-pad ceramic surface-mount design provides enhanced grounding and electromagnetic interference shielding compared to two-pin variants.
• AT-cut fundamental resonance architecture ensures stable oscillation with simplified circuit matching requirements.
• Industrial-grade thermal stability covers the full -40°C to +85°C operational range for reliable performance in harsh environments.

Crystals Applications

• Bluetooth and short-range wireless communication modules
• PCMCIA interface devices
• Industrial control systems with high-density PCB layouts

Crystals Procurement Notes

Verify the specific load capacitance and ESR values against the target circuit design, as these parameters are critical for oscillator startup reliability. Confirm that the 4-pad footprint matches the PCB silkscreen and copper pad layout to ensure proper soldering and electrical connection during surface mount assembly.

Crystals Selection Notes

Select this component when space constraints require a 2520 footprint but superior noise immunity is needed. The four-terminal configuration offers better RF performance than standard two-lead crystals. Ensure the system clock frequency aligns with the available 12MHz to 66MHz range and that the driving level remains within safe operational limits.

Crystals Part Context

This part belongs to the SXT224 series, which specializes in compact industrial-grade crystals. The series is designed for applications demanding small form factors alongside robust signal integrity. The naming convention indicates the series, size, load capacitance, tolerance, temperature range, and specific frequency output.

Crystals Replacement Considerations

Direct substitutes must match the 2.5mm x 2.0mm 4-pad package, 27MHz frequency, and 20pF load capacitance. Verify that alternative components support the same -40°C to +85°C temperature range and have comparable ESR specifications to maintain circuit stability.

Crystals FAQ

What is the maximum equivalent series resistance for this specific frequency?

The maximum ESR for the 27.000MHz variant is 60 Ohms.

Does this component use a fundamental or overtone mode?

It utilizes an AT-cut fundamental mode design.