49US9S1228BMDAYEGDE-B

Crystals Overview

The HKC 49US9S1228BMDAYEGDE-B is a MHz crystal oscillator designed for precision timing applications. It operates at a fundamental frequency of 12.288 MHz with a frequency tolerance of ±25ppm and stability of ±50ppm. The component utilizes an HC-49/US package and features a load capacitance of 30pF. It is rated for an operating temperature range of -40°C to +85°C and has a series resistance of 40 Ohms. This device is RoHS compliant and lead-free, ensuring environmental safety standards are met for modern electronic assemblies.

Crystals Feature Summary

• Provides stable oscillation at 12.288 MHz with tight frequency tolerance
• Utilizes HC-49/US through-hole package for reliable mounting
• Operates across extended industrial temperature ranges
• Complies with RoHS directives for lead-free manufacturing

Crystals Applications

• Clock generation in microcontroller systems
• Timing references for communication interfaces
• Frequency synthesis in consumer electronics
• Industrial control system oscillators

Crystals Procurement Notes

Verify the specific suffix codes against the manufacturer's official datasheet to ensure compatibility with required load capacitance and frequency tolerance specifications. Confirm that the HC-49/US package dimensions align with the target PCB footprint. Check for updated RoHS compliance documentation if sourcing from third-party distributors to guarantee material integrity and regulatory adherence during procurement.

Crystals Selection Notes

Select this component when a precise 12.288 MHz reference is required for digital circuits. The ±25ppm tolerance suits applications needing high accuracy without expensive oven-controlled alternatives. Ensure the circuit design accounts for the 30pF load capacitance to maintain frequency accuracy. Consider the HC-49/US form factor for standard through-hole assembly processes where robust mechanical connection is prioritized over surface-mount density.

Crystals Part Context

This part belongs to the family of MHz crystals manufactured by HKC. These components serve as essential timing elements in various electronic devices. The HC-49/US style is a widely recognized package type for general-purpose oscillators. The specific model number indicates the frequency and electrical characteristics defined by the manufacturer's internal coding system for quality control and identification.

Crystals Replacement Considerations

Direct substitutes must match the 12.288 MHz frequency, HC-49/US package, and 30pF load capacitance. Verify equivalent parts offer similar ±25ppm tolerance and -40°C to +85°C temperature ratings. Cross-reference series resistance values to ensure circuit stability. Consult manufacturer cross-reference lists for approved alternates that meet identical electrical and mechanical specifications.