49SMSS2457BMDAHFGCE-CT

Crystals Overview

The HKC 49SMSS2457BMDAHFGCE-CT is a fundamental mode MHz crystal oscillator housed in an HC-49S surface-mount package. It operates at a nominal frequency of 24.576 MHz with a load capacitance of 16pF and an equivalent series resistance (ESR) of 30 Ohms. The component supports a frequency tolerance of ±30ppm and frequency stability of ±50ppm. It functions within an operating temperature range of -40°C to +85°C and complies with RoHS3 standards.

Crystals Feature Summary

• Fundamental oscillation mode for precise timing applications
• Surface-mount HC-49S package design for automated assembly
• Wide industrial temperature rating for environmental resilience

Crystals Applications

• Clock signal generation in digital circuits
• Microcontroller and microprocessor system timing
• Communication interface synchronization

Crystals Procurement Notes

Verify the specific tolerance requirements against the datasheet specifications, noting the distinction between frequency tolerance (±30ppm) and stability (±50ppm). Confirm that the HC-49S surface-mount footprint matches the target PCB layout. Ensure the operating environment remains within the specified -40°C to +85°C range to maintain performance integrity. Check for RoHS3 compliance if required by project regulations.

Crystals Selection Notes

Select this component when a stable 24.576 MHz reference is required for surface-mount designs. The HC-49S form factor offers a balance between performance and board space efficiency compared to through-hole variants. Consider the ±30ppm tolerance for applications sensitive to clock drift. Evaluate the 30 Ohm ESR to ensure compatibility with the driving circuit's load requirements.

Crystals Part Context

This part belongs to the family of MHz crystals manufactured by HKC. It serves as a passive frequency control element essential for establishing accurate timebases in electronic systems. The HC-49S designation indicates a standard-sized metal can package adapted for surface mounting, widely used in consumer and industrial electronics for reliable clock generation.

Crystals Replacement Considerations

Substitute parts must match the 24.576 MHz frequency, HC-49S package, 16pF load capacitance, and ±30ppm tolerance. Verify that alternative manufacturers provide equivalent ESR values and temperature stability ranges.