1N1187

Single Diodes Overview

The GeneSiC Semiconductor 1N1187 is a silicon standard recovery rectifier diode housed in a DO-5 (DO-203AB) stud package. It features a repetitive peak reverse voltage of 200 V and a continuous forward current rating of 35 A. The device exhibits a maximum non-repetitive surge forward current of 595 A under half-sine wave conditions. Electrical characteristics include a maximum forward voltage of 1.2 V at 35 A and a thermal resistance from junction to case of 0.25 °C/W. The component operates within a junction temperature range of -55 °C to 150 °C.

Single Diodes Feature Summary

• High surge current capability for handling transient loads
• Stud configuration allows direct mounting to heatsinks
• Standard polarity with the stud serving as the cathode terminal

Single Diodes Applications

• General purpose rectification circuits
• Power supply input stages
• Industrial motor drive systems

Single Diodes Procurement Notes

Verify the specific manufacturer designation, as the 1N1187 part number appears across multiple semiconductor producers including GeneSiC and Microchip. Confirm that the datasheet corresponds to the exact electrical ratings required, specifically the 200 V reverse voltage and 35 A current limits. Ensure the package matches the DO-5 stud format and check for any suffix variations indicating reverse polarity or different manufacturing origins.

Single Diodes Selection Notes

Select this component when a robust silicon rectifier with high surge tolerance is required for medium-power applications. The low thermal resistance facilitates efficient heat dissipation through the stud mount. Consider the standard recovery speed for general-purpose use rather than high-frequency switching scenarios. Verify compatibility with the intended operating temperature range and mechanical mounting constraints.

Single Diodes Part Context

The 1N1187 belongs to a series of standard recovery rectifiers ranging from 50 V to 300 V reverse voltage. These devices are designed for industrial and commercial power conversion applications requiring reliable performance under high current conditions. The series utilizes a rugged stud package to support substantial thermal management needs.

Single Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N1187 equivalents to ensure pinout and thermal interface compatibility. Verify that substitute parts meet the same 35 A continuous current and 595 A surge current specifications.