049ST2-20.000F20DTLLK

Crystals Overview

The 049ST2-20.000F20DTLLK is a cylindrical can radial crystal manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 20 MHz with a load capacitance of 20 pF and an equivalent series resistance of 30 Ohms. The unit features an HC-49/US package and provides a frequency stability of ±20 ppm at 25°C, extending to ±20 ppm across the -40°C to +85°C temperature range.

Crystals Feature Summary

• Fundamental mode quartz crystal resonator
• Cylindrical metal can construction for environmental protection
• Radial lead configuration for through-hole mounting

Crystals Applications

• General purpose clock generation circuits
• Microcontroller oscillator inputs
• Industrial control system timing references

Crystals Procurement Notes

Verify the complete part number against official manufacturer documentation to ensure correct frequency, tolerance, and package specifications. Confirm that the HC-49/US form factor aligns with PCB layout requirements. Cross-reference electrical parameters such as ESR and load capacitance with circuit design constraints before finalizing procurement decisions.

Crystals Selection Notes

Select this component when a standard 20 MHz reference is required in a robust metal can package. Ensure the application environment falls within the specified operating temperature range. Verify that the 20 pF load capacitance matches the oscillator circuit design to maintain accurate frequency performance.

Crystals Part Context

This model belongs to the 049ST2 series of quartz crystals produced by Suzhou Hangjing Elec&Tech Co., Ltd. The company specializes in the research, development, and production of quartz frequency controlling units. This specific part represents a standard frequency option within their cylindrical can product line.

Crystals Replacement Considerations

Compatible substitutes must match the 20 MHz frequency, 20 pF load capacitance, HC-49/US package, and ±20 ppm stability. Verify equivalent series resistance and drive level specifications to ensure circuit compatibility without modification.