49SMSS1128BMDAJFEDA-CT

Crystals Overview

The HKC 49SMSS1128BMDAJFEDA-CT is a fundamental mode MHz crystal oscillator housed in an HC-49S package. It operates at a nominal frequency of 11.2896 MHz with a load capacitance of 18 pF and a maximum equivalent series resistance (ESR) of 40 Ohms. The component supports a frequency tolerance and stability of ±30 ppm. It is designed for operation within a temperature range of -20°C to +70°C, ensuring reliable performance in standard industrial environments.

Crystals Feature Summary

• Utilizes HC-49S through-hole mounting format for robust mechanical integration
• Provides stable frequency generation with ±30 ppm tolerance for precise timing applications
• Features low equivalent series resistance of 40 Ohms for efficient circuit driving

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose digital logic synchronization

Crystals Procurement Notes

Verify the specific suffix 'CT' against the manufacturer's official datasheet to confirm compliance with lead-free and RoHS standards. Ensure the ordering part number matches the exact frequency and load capacitance requirements of the target design. Cross-reference the HC-49S package dimensions with PCB footprint specifications prior to procurement to guarantee physical compatibility.

Crystals Selection Notes

Select this component when a standard 11.2896 MHz reference is required for cost-sensitive designs utilizing HC-49S packages. Consider the ±30 ppm stability limit for applications not requiring high-precision oscillators. Evaluate the -20°C to +70°C operating range against environmental conditions to ensure thermal reliability during continuous operation.

Crystals Part Context

This crystal belongs to the standard HC-49S family of resonators commonly used in consumer electronics and industrial control systems. It serves as a primary timebase for digital circuits where moderate frequency accuracy is sufficient. The HC-49S form factor remains widely adopted due to its established manufacturing processes and ease of automated assembly in legacy and modern mixed-signal designs.

Crystals Replacement Considerations

Substitute parts must match the 11.2896 MHz frequency, 18 pF load capacitance, and HC-49S package dimensions. Verify that alternative manufacturers offer comparable ESR values below 40 Ohms and identical ±30 ppm stability ratings to maintain circuit performance integrity.