049ST2-12.288F20DTLJK

Crystals Overview

The 049ST2-12.288F20DTLJK is a quartz crystal resonator manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 12.288 MHz with a load capacitance of 20 pF and an equivalent series resistance (ESR) of 40 Ohms. The component features a frequency tolerance of ±20 ppm and utilizes the HC-49S package style, which corresponds to a standard two-dip configuration. This part is designed for surface-mount or through-hole integration depending on specific board layout requirements associated with the HC-49S form factor.

Crystals Feature Summary

• Provides stable frequency generation at 12.288 MHz
• Utilizes HC-49S package for standardized mounting
• Maintains ±20 ppm frequency tolerance

Crystals Applications

• Clock signal generation in digital circuits
• Microcontroller oscillator inputs
• Communication interface timing references

Crystals Procurement Notes

Verify the exact package dimensions against the official datasheet to ensure compatibility with your PCB footprint, as HC-49S variants can differ slightly between manufacturers. Confirm that the 40 Ohm ESR aligns with your oscillator circuit design requirements. Ensure the ±20 ppm tolerance meets the system's timing accuracy specifications before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 12.288 MHz reference is required with moderate stability. The HC-49S package offers a balance of cost and performance for general-purpose applications. Consider the 20 pF load capacitance requirement to ensure proper oscillation conditions are met within the target circuit design without additional external loading adjustments.

Crystals Part Context

This crystal belongs to the HC-49S series produced by Suzhou Hangjing Elec&Tech Co., Ltd., a company specializing in quartz frequency control components since 2014. The manufacturer focuses on research, development, and production of such units for industrial and consumer electronics markets.

Crystals Replacement Considerations

Direct substitutes must match the 12.288 MHz frequency, 20 pF load capacitance, 40 Ohm ESR, and HC-49S package. Verify pin spacing and lead dimensions for mechanical fit. Cross-reference electrical parameters with alternative suppliers to ensure identical performance characteristics.