VS-1N1188

Single Diodes Overview

The VS-1N1188 is a power silicon rectifier diode from Vishay Semiconductors, designed for high-power applications. It features a maximum average forward current of 35 A and a maximum repetitive peak reverse voltage of 400 V. The device utilizes a DO-203AB (DO-5) stud mount package with a case temperature range of -65 °C to +190 °C. Key electrical characteristics include a maximum non-repetitive surge current of 500 A at 60 Hz and a typical maximum peak forward voltage of 1.7 V.

Single Diodes Feature Summary

• Low leakage current series
• Good surge current capability up to 1000 A

Single Diodes Applications

• High power rectification
• Industrial power supplies
• Welding equipment

Single Diodes Procurement Notes

Verify the specific part number suffix against the manufacturer's datasheet to confirm polarity configuration. Standard numbering indicates cathode-to-case; an anode-to-case variant requires adding an 'R' to the base part number. Confirm RoHS compliance status as it varies by manufacturing batch and region. Ensure mounting torque specifications are strictly followed during installation to maintain thermal performance and mechanical integrity.

Single Diodes Selection Notes

Select this component for circuits requiring robust single-phase rectification with high surge tolerance. The DO-203AB package facilitates direct heatsink mounting via a threaded stud. Evaluate thermal resistance parameters relative to the expected ambient conditions. Consider the maximum junction temperature limits when designing heat dissipation strategies for continuous operation.

Single Diodes Part Context

This component belongs to the VS-1N1183 series, which includes variants with different voltage ratings ranging from 50 V to 1000 V. All members share similar physical dimensions and thermal characteristics within the DO-203AB package family. The series is engineered for reliability in demanding environments, offering consistent performance across various industrial and commercial power conversion systems.

Single Diodes Replacement Considerations

Direct substitutes include other 400 V, 35 A rectifiers in the DO-203AB package. Verify that alternative parts meet or exceed the 500 A surge current requirement at 60 Hz. Ensure the replacement maintains the same cathode-to-case configuration unless an 'R' suffix equivalent is specified.