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STW3N170 is listed in the Single FETs, MOSFETs range at ChipApex. The manufacturer field lists STMicroelectronics. Its product description is MOSFET N-CH 1700V 2.6A TO247-3. Review the specifications below when checking this part for your BOM.
The STW3N170 is an N-channel Power MOSFET utilizing the MESH OVERLAY process, housed in a TO-247 package. It features a drain-source voltage of 1700 V and a maximum on-resistance of 13 Ω (typical 7 Ω). The device supports a continuous drain current of 2.6 A at 25 °C case temperature and handles pulsed currents up to 10.4 A. Key electrical parameters include a gate threshold voltage of 3 V to 5 V, total gate charge of 44 nC, and avalanche energy capability of 2 mJ. Thermal resistance from junction to case is 0.78 °C/W.
Verify the specific ordering code against the manufacturer's official datasheet DS11126 Rev 3 to ensure correct part identification. Confirm that the required package type matches the TO-247 specification. Check environmental compliance grades such as ECOPACK if applicable to your project requirements. Ensure that thermal management designs account for the specified junction-to-case thermal resistance values provided in the documentation.
Select this component for high-voltage power switching circuits requiring reliable performance. The 1700 V rating suits demanding industrial and energy storage environments. Consider the 13 Ω maximum on-resistance for conduction loss calculations. The TO-247 package facilitates effective heat dissipation through the tab connection. Evaluate the 44 nC gate charge for driver circuit compatibility and switching frequency limitations.
This device belongs to the PowerMESH Power MOSFET series from STMicroelectronics. It is designed to match or improve upon the performance of comparable standard parts from other manufacturers. The product utilizes advanced silicon technology optimized for high-voltage applications, providing a balance between low on-resistance and fast switching speeds within the TO-247 form factor.
No public confirmed substitute part numbers are available in the source material.
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