SXT14418BB27-4.000M

Crystals Overview

The SXT14418BB27-4.000M is a surface-mount quartz crystal oscillator manufactured by Suntsu Electronics, Inc. It operates at a fundamental frequency of 4.000 MHz with a load capacitance of 18 pF and a frequency stability of ±30 ppm. The component utilizes a 4-SOJ package with a 9.50 mm pitch and features an equivalent series resistance (ESR) of 150 Ohms. Designed for precision timing applications, this device provides reliable clock signals in a compact form factor suitable for embedded systems requiring stable frequency references.

Crystals Feature Summary

• Provides precise 4.000 MHz clock signal generation
• Utilizes compact 4-SOJ surface-mount packaging
• Ensures frequency stability within ±30 ppm tolerance

Crystals Applications

• Embedded system clock sources
• Microcontroller timing circuits
• Digital communication interfaces

Crystals Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required load capacitance and frequency tolerance specifications. Confirm that the 4-SOJ package dimensions align with the target PCB footprint. Check RoHS compliance status if environmental regulations apply to the end product. Ensure the ESR value matches the oscillator circuit design requirements for proper startup and stability.

Crystals Selection Notes

Select this component when a 4 MHz reference with ±30 ppm stability is required in a small surface-mount format. The 18 pF load capacitance must match the external circuit design. Consider the 150 Ohm ESR for drive level limitations. This part is suitable for applications needing reliable timing without the complexity of active oscillators.

Crystals Part Context

This crystal belongs to the SXT series from Suntsu Electronics, Inc., which focuses on compact timing solutions. The 4-SOJ package offers a balance between size and thermal performance compared to larger through-hole options. It serves as a passive frequency-determining element in resonant circuits, distinct from active MEMS or ceramic oscillators.

Crystals Replacement Considerations

Direct substitutes include other 4 MHz crystals with identical 18 pF load capacitance and similar ESR values in SOJ-4 packages. Verify pinout compatibility and physical dimensions before substitution. Alternative manufacturers may offer parts with tighter stability tolerances but require circuit re-evaluation.