049ST2-25.000F16DTNJK

Crystals Overview

The 049ST2-25.000F16DTNJK is a quartz crystal resonator manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 25 MHz with a frequency tolerance of ±10 ppm. The component features a load capacitance of 16 pF and an equivalent series resistance (ESR) of 30 Ohms. It utilizes the HC-49S package style, which is a two-dip configuration suitable for through-hole mounting. This specific part number designates a standard crystal unit designed for precise timing applications requiring stable oscillation within the specified electrical parameters.

Crystals Feature Summary

• Provides stable oscillation at 25 MHz with high reliability
• Utilizes HC-49S package for robust mechanical structure
• Designed for general-purpose timing circuits

Crystals Applications

• Microcontroller clock sources
• Communication equipment timing
• Digital circuit synchronization

Crystals Procurement Notes

Verify the exact suffix DTNJK against official manufacturer documentation to ensure correct packaging and handling specifications. Confirm that the HC-49S form factor matches the target PCB footprint requirements. Cross-reference the 16pF load capacitance with the oscillator circuit design to prevent frequency deviation issues during integration.

Crystals Selection Notes

Select this component when a 25 MHz fundamental mode crystal is required with a 30 Ohm ESR limit. Ensure the application environment supports the standard operating temperature range typical for HC-49S units. Verify that the ±10 ppm initial tolerance meets the system's timing accuracy constraints before finalizing the bill of materials.

Crystals Part Context

This part belongs to the HC-49S crystal family produced by Suzhou Hangjing Elec&Tech Co., Ltd., a company specializing in quartz frequency control units founded in 2014. The 049ST2 series represents standard through-hole crystals. Similar variants exist with different frequencies and tolerances, such as the 30 MHz counterpart, sharing the same physical package and basic electrical architecture.

Crystals Replacement Considerations

Direct substitutes must match the 25 MHz frequency, 16pF load capacitance, 30 Ohm ESR, and HC-49S package. Check for identical pin spacing and lead dimensions to ensure mechanical compatibility without PCB modifications.