SXTHM218FA384-25.000M

Crystals Overview

The SXTHM218FA384-25.000M is a fundamental mode quartz crystal resonator manufactured by Suntsu Electronics, Inc. It operates at a nominal frequency of 25 MHz with a frequency tolerance of ±10 ppm and a load capacitance of 18 pF. The component utilizes the HC-49/US package style, featuring dimensions of 0.524 inches in length and 0.197 inches in width. It exhibits an equivalent series resistance of 30 Ohms and maintains a frequency stability of ±50 ppm across the operating temperature range of -30°C to +85°C.

Crystals Feature Summary

• Fundamental mode quartz crystal construction for stable oscillation
• HC-49/US through-hole package design for standard mounting
• Wide industrial temperature range operation capability

Crystals Applications

• Microcontroller clock circuits
• Communication equipment timing references
• Industrial control system oscillators

Crystals Procurement Notes

Verify the specific suffix designation against the manufacturer's current datasheet to confirm exact electrical parameters and packaging variations. Ensure the ordering part number matches the required frequency tolerance and stability specifications for the target application environment. Cross-reference the package type to confirm compatibility with existing PCB footprints and assembly processes before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 25 MHz fundamental mode crystal is required with ±10 ppm initial tolerance. Consider the HC-49/US package constraints regarding board space and lead form requirements. Evaluate the ±50 ppm stability specification against the system's total allowable frequency drift over the specified -30°C to +85°C temperature range to ensure reliable timing performance.

Crystals Part Context

This part belongs to the SXTHM218 series of MHz crystals from Suntsu Electronics, Inc. The series typically includes variants with different frequencies and tolerances, such as 24.576 MHz or 32 MHz options. The FA384 suffix likely denotes specific manufacturing lot or parameter grouping within the broader product line.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' HC-49/US 25 MHz crystals with matching 18 pF load capacitance and similar ESR values. Verify that alternative parts meet the same ±10 ppm tolerance and -30°C to +85°C operating range requirements to maintain system timing integrity.