SXT22420DB38-22.1184M

Crystals Overview

The SXT22420DB38-22.1184M is a 22.1184 MHz fundamental AT-cut crystal oscillator manufactured by Suntsu Electronics, Inc. It operates within a ±20 ppm frequency tolerance and features a 20 pF load capacitance with an equivalent series resistance of 80 Ohms maximum. The component utilizes a 4-SMD, no-lead package design, providing a compact footprint suitable for space-constrained applications. It is RoHS compliant and lead-free, ensuring environmental safety standards are met for modern electronic assemblies.

Crystals Feature Summary

• Four-terminal surface mount configuration enables direct grounding of unused pins to enhance electromagnetic interference shielding and reduce radiated emissions compared to two-pin alternatives.

Crystals Applications

• Bluetooth low energy (BLE) modules
• Short-range wireless communication devices
• PCMCIA cards and modems

Crystals Procurement Notes

Verify the specific suffix 'DB38' against the manufacturer's official datasheet to confirm the exact pinout and mechanical dimensions, as ordering codes may vary slightly between revisions. Ensure the receiving facility has ESD protection protocols in place, as ceramic resonators are sensitive to electrostatic discharge during handling and storage.

Crystals Selection Notes

Select this component when a 2520 mm form factor is required alongside superior EMC performance due to the four-pad ground connection. It is appropriate for designs where the circuit topology benefits from a fundamental mode crystal without additional matching inductors, provided the target frequency aligns with the 12–66 MHz operational range.

Crystals Part Context

This part belongs to the SXT224 series, which comprises industrial-grade ceramic SMD crystals designed for high-density PCB layouts. The series offers various frequency options and tolerance grades, allowing designers to balance cost and performance requirements for wearable devices and industrial control systems requiring stable timing references.

Crystals Replacement Considerations

Direct substitutes include other 22.1184 MHz crystals in 4-SMD packages with identical electrical parameters. Verify that any replacement maintains the 20 pF load capacitance and 80 Ohm ESR limits to ensure circuit stability and proper oscillation startup conditions.