1N1188A

Single Diodes Overview

The GeneSiC Semiconductor 1N1188A is a silicon standard recovery rectifier diode housed in a DO-5 (DO-203AB) stud package. It features a maximum repetitive peak reverse voltage of 400 V and a continuous forward current rating of 40 A. The device exhibits a forward voltage of 1.1 V at 40 A and a junction-to-case thermal resistance of 1.25 °C/W. Operating and storage temperatures range from -55 °C to 150 °C, with a surge non-repetitive forward current capability of 800 A.

Single Diodes Feature Summary

• High surge current capability for robust transient handling
• Stud base configuration for efficient thermal management
• Standard polarity design with cathode stud

Single Diodes Applications

• Industrial power supply rectification
• Motor drive circuits
• General-purpose high-current DC conversion

Single Diodes Procurement Notes

Verify the specific suffix designation when ordering, as it indicates terminal configuration. Standard polarity units have the stud as the cathode, while reversed polarity variants feature the stud as the anode. Confirm that the required voltage rating matches the 400 V specification for the 1N1188A model before procurement to ensure circuit compatibility.

Single Diodes Selection Notes

Select this component for applications requiring high current density and effective heat dissipation through a mounting surface. The low thermal resistance facilitates direct attachment to heatsinks. Ensure the operating environment remains within the specified temperature limits and that the reverse voltage requirements do not exceed the 400 V maximum rating.

Single Diodes Part Context

This part belongs to the 1N1183A through 1N1190AR series of silicon standard recovery diodes. All members share identical current ratings and package dimensions but vary in reverse voltage capabilities ranging from 50 V to 600 V. The 1N1188A specifically addresses mid-range voltage applications within this standardized family.

Single Diodes Replacement Considerations

Direct substitutes include other 1N1188A parts from different manufacturers meeting the same electrical specifications. Verify pinout orientation, particularly regarding stud polarity, when replacing standard units with reversed polarity versions or alternative brands.