SXTHM218ED384-40.000M

Crystals Overview

The SXTHM218ED384-40.000M is a surface-mount crystal oscillator manufactured by Suntsu Electronics, Inc. It operates at a fundamental frequency of 40.000 MHz with a load capacitance of 18 pF. The component provides a frequency tolerance of ±15 ppm and a stability of ±20 ppm. It utilizes an HC-49/US package format adapted for SMD mounting.

Crystals Feature Summary

• Surface-mount design for automated assembly
• Hermetically sealed construction for environmental protection
• ESD-safe handling protocols during manufacturing

Crystals Applications

• Microcontroller clock sources
• Communication module timing
• Digital signal processing circuits

Crystals Procurement Notes

Verify the specific suffix codes against official Suntsu documentation to ensure correct tolerance and temperature range specifications. Confirm package compatibility with PCB footprints prior to ordering. Request updated datasheets directly from authorized distributors to validate current production status and compliance certifications.

Crystals Selection Notes

Select this component when a 40 MHz reference signal is required in space-constrained designs. Ensure the application environment stays within the specified operating temperature limits. Verify that the load capacitance matches the circuit requirements to maintain accurate frequency performance.

Crystals Part Context

This part belongs to the SXTHM series of surface-mount crystals. It serves as a direct replacement for through-hole HC-49/U variants where board space is limited. The series offers standardized pinouts compatible with common SMD reflow processes.

Crystals Replacement Considerations

• SXTHM218EB074-40.000M
• SXTHM218DC384-40.000M

Crystals FAQ

What is the frequency tolerance of this crystal?

The frequency tolerance is ±15 ppm.

Does this component require external load capacitors?

It is designed for an 18 pF load capacitance; verify if internal or external capacitors are needed based on the host circuit design.