VS-1N1188R

Single Diodes Overview

The VS-1N1188R is a power silicon rectifier diode from Vishay Semiconductors, belonging to the 1N1183 series. It features an anode-to-case configuration and utilizes a DO-203AB (DO-5) stud mount package. The device provides a maximum repetitive peak reverse voltage of 400 V and supports a maximum average forward current of 35 A at a case temperature of 140 °C. Key electrical characteristics include a maximum peak forward voltage of 1.7 V at 110 A and a maximum non-repetitive surge current of 500 A for a half-cycle 60 Hz sine wave. The junction temperature range spans from -65 °C to +200 °C.

Single Diodes Feature Summary

• Anode-to-case terminal configuration
• Low leakage current design
• High surge current capability

Single Diodes Applications

• Industrial power supplies
• Battery chargers
• Welding equipment

Single Diodes Procurement Notes

Verify that the specific part number suffix matches the required anode-to-case polarity, as standard versions utilize cathode-to-case connections. Confirm compliance with RoHS directives and REACH SVHC requirements before procurement. Ensure mounting hardware specifications align with the recommended torque values for the threaded stud to maintain thermal interface integrity.

Single Diodes Selection Notes

Select this component when a high-current single-phase rectifier with robust surge handling is required in a stud-mount form factor. The anode-to-case variant is specifically chosen when circuit topology necessitates connecting the anode directly to the heatsink or chassis ground. Evaluate thermal resistance parameters against the application's cooling capacity to ensure operation within the specified junction temperature limits.

Single Diodes Part Context

This component is part of the Vishay 1N1183 series, which encompasses various voltage ratings ranging from 50 V to 1000 V within the same physical package family. The 'R' suffix in the part number explicitly denotes the anode-to-case construction, distinguishing it from the standard cathode-to-case variants like the VS-1N1188. All members share similar mechanical dimensions and thermal management requirements.

Single Diodes Replacement Considerations

• VS-1N1188

Single Diodes FAQ

What is the difference between VS-1N1188 and VS-1N1188R?

The primary difference is the internal connection polarity. The VS-1N1188 has a cathode-to-case configuration, whereas the VS-1N1188R features an anode-to-case configuration.

Is the VS-1N1188R suitable for high-frequency switching applications?

No, the datasheet classifies this device as a standard recovery rectifier with slow switching characteristics, making it unsuitable for high-frequency applications.