1N1186A

Single Diodes Overview

The 1N1186A is a silicon standard recovery rectifier diode manufactured by Microchip Technology (formerly Microsemi). It features a maximum repetitive peak reverse voltage of 200V and an average forward rectified current rating of 40A. The device is housed in a DO-5 package with a cathode-connected case for efficient heat dissipation. It supports a non-repetitive peak surge current of 800A and operates within a junction temperature range of -65°C to 200°C, ensuring reliability in high-power applications.

Single Diodes Feature Summary

• Glass passivated die construction for enhanced environmental stability
• Cathode-connected metal case design facilitating direct mounting to heatsinks
• High thermal capability supporting operation up to 200°C junction temperature
• Robust surge current handling rated at 800A for transient protection

Single Diodes Applications

• General purpose AC to DC power conversion circuits
• Industrial power supply rectification stages
• Battery charging systems requiring high surge tolerance

Single Diodes Procurement Notes

Verify the manufacturer origin carefully, as this component was originally produced by Microsemi Corporation before its acquisition by Microchip Technology. Ensure the specific datasheet version aligns with your design requirements, particularly regarding the 200V rating which may vary across different manufacturers' interpretations of the 1N1186A part number. Confirm compliance with RoHS standards if required for your assembly process.

Single Diodes Selection Notes

Select this component when a robust, stud-mounted silicon rectifier is needed for medium-voltage, high-current applications. The 200V rating suits lower voltage AC lines, while the 40A current capacity handles substantial loads. Consider the DO-5 package constraints for mechanical integration and ensure adequate thermal management solutions are available given the high operating temperature limits.

Single Diodes Part Context

The 1N1186A belongs to the legacy 1N118x series of power rectifiers, widely used in industrial and military electronics. Originally specified under MIL-SPEC standards, these devices are known for their ruggedness and glass-to-metal hermetic sealing. The series covers various voltage ratings from 50V to 1000V, with the 1N1186A specifically designated for the 200V class within the 40A current family.

Single Diodes Replacement Considerations

Equivalent parts include the Vishay 1N1186A and GeneSiC 1N1186A. Verify pinout compatibility and exact voltage/current derating curves before substitution, as minor variations in forward voltage drop or leakage current may exist between original Microsemi and third-party manufacturers.