049ST2-6.400F20DTLJK

Crystals Overview

The 049ST2-6.400F20DTLJK is a quartz crystal resonator manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 6.4 MHz with a frequency tolerance of ±20 ppm. The component features a load capacitance of 20 pF and an equivalent series resistance (ESR) of 50 Ohms. It utilizes the HC-49S package style, designed for through-hole mounting in a standard 2-DIP configuration. This device serves as a frequency control element for electronic circuits requiring stable oscillation.

Crystals Feature Summary

• Provides precise frequency stability within specified tolerance limits
• Utilizes robust HC-49S package for reliable mechanical integration
• Designed for through-hole assembly processes

Crystals Applications

• General-purpose electronic circuit timing
• Microcontroller clock sources
• Communication equipment frequency references

Crystals Procurement Notes

Verify the specific manufacturer datasheet for detailed electrical characteristics and environmental ratings before integration. Confirm that the HC-49S package dimensions align with the target PCB footprint. Ensure the 20 pF load capacitance matches the oscillator circuit design requirements to maintain the specified ±20 ppm accuracy. Check for any RoHS or REACH compliance documentation if required by the end product regulations.

Crystals Selection Notes

Select this component when a 6.4 MHz reference signal is required with moderate precision. The HC-49S form factor is suitable for applications where space constraints allow for larger through-hole components compared to surface-mount alternatives. Consider the 50 Ohm ESR value when designing the drive level and oscillator circuit to prevent overdriving the crystal. Evaluate the ±20 ppm tolerance against the system's overall frequency budget.

Crystals Part Context

This part belongs to the 049ST2 series of quartz crystals from Suzhou Hangjing. The series typically includes various frequencies and package options. The manufacturer specializes in quartz frequency control components, including resonators and oscillators. The company focuses on research, development, and production of these units for industrial and consumer electronics markets.

Crystals Replacement Considerations

Direct substitutes must match the 6.4 MHz frequency, 20 pF load capacitance, HC-49S package, and similar ESR values. Verify that alternative manufacturers offer comparable ±20 ppm tolerance. Ensure the replacement part maintains the same pinout and mechanical dimensions for seamless PCB integration without redesign.