049ST3-4.000F20DTLLK

Crystals Overview

The 049ST3-4.000F20DTLLK is a quartz crystal resonator manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 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 200 Ohms. It utilizes the HC-49S package style, which provides a 3-DIP form factor for through-hole mounting applications.

Crystals Feature Summary

• Provides stable frequency control using quartz resonance technology
• Designed for surface-mount or through-hole integration via standard leaded packaging
• Engineered to meet specific load capacitance requirements for oscillator circuits

Crystals Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronic device oscillators

Crystals Procurement Notes

Verify the exact part number against official manufacturer documentation to ensure compatibility with circuit design requirements. Confirm that the HC-49S package dimensions and pin configuration match the target PCB layout. Validate the frequency tolerance and ESR specifications against the system's oscillator circuit constraints before procurement.

Crystals Selection Notes

Select this component when a 4 MHz fundamental frequency with ±20 ppm stability is required. Ensure the circuit design supports a 20 pF load capacitance and can accommodate a 200 Ohm series resistance. The HC-49S package must be compatible with the assembly process and available board space.

Crystals Part Context

Suzhou Hangjing Elec&Tech Co., Ltd. specializes in the research, development, production, and sales of quartz frequency controlling units. Founded in 2014, the company focuses on providing reliable frequency control components for various electronic applications, including consumer electronics and industrial equipment.

Crystals Replacement Considerations

Cross-reference with other 4 MHz HC-49S crystals from different manufacturers if supply is unavailable. Ensure substitute parts match the 20 pF load capacitance and 200 Ohm ESR specifications to maintain circuit performance.