VS-ST103S08PFN1

Scrs Overview

The VS-ST103S08PFN1 is a silicon controlled rectifier (SCR) from Vishay General Semiconductor, designed for high-power industrial applications. It features an 800 V blocking voltage and supports a continuous on-state current of 165 A. The device utilizes a TO-209AC (TO-118) base-mount package with stud mounting for efficient thermal dissipation. Key electrical characteristics include a maximum on-state voltage of 1.73 V and a gate trigger voltage of up to 3 V. It operates within a junction temperature range of -40°C to 125°C and complies with RoHS standards.

Scrs Feature Summary

• High power handling capability with 165 A average on-state current rating
• Robust 800 V reverse blocking voltage for demanding circuit protection
• Stud-mounted TO-209AC package ensures secure mechanical installation and effective heat transfer

Scrs Applications

• Industrial motor control systems
• Power supply units requiring high current regulation
• Resistive load switching in heavy machinery

Scrs Procurement Notes

Verify the specific suffix 'N1' against official Vishay documentation to confirm exact pinout and material composition, as suffixes often denote specific manufacturing revisions or environmental compliance variations. Ensure the procurement channel provides valid traceability records for this discontinued or limited-stock component type. Cross-reference the datasheet revision date to confirm compatibility with current design specifications before finalizing orders.

Scrs Selection Notes

Select this SCR when the application requires an 800 V blocking voltage combined with a 165 A continuous current capacity. The TO-209AC package is suitable for chassis or base mounting where thermal management is critical. Consider the 1.73 V on-state voltage drop for efficiency calculations. Ensure the gate drive circuit can provide sufficient current to trigger the device reliably under varying temperature conditions.

Scrs Part Context

This component belongs to the VS-ST103SP series of high-power SCRs manufactured by Vishay General Semiconductor. The series is characterized by robust construction for industrial environments. The TO-209AC form factor is standard for medium-to-high power thyristors, allowing direct mounting to heatsinks. This specific model represents a variant optimized for 800 V operation within the broader product line.

Scrs Replacement Considerations

Direct substitutes may include other 800 V, 165 A SCRs in the TO-209AC package from manufacturers like Littelfuse or Microsemi. Verify that replacement parts match the 1.73 V max on-state voltage and 3 V max gate trigger voltage to ensure circuit compatibility. Check for equivalent thermal resistance values to maintain system cooling performance.