1N1188

Single Diodes Overview

The Microchip Technology 1N1188 is a silicon power rectifier diode designed for high-current applications. It features a standard recovery characteristic with a maximum average forward rectified current of 40 A and a repetitive peak reverse voltage rating up to 1000 V. The device utilizes a metal case package, specifically DO-5 (DO-203AB), which supports stud mounting for efficient thermal dissipation. Key electrical parameters include a maximum non-repetitive surge current of 600 A at 60 Hz and a maximum DC blocking voltage of 1000 V. The component operates within a junction temperature range of -65°C to +200°C, ensuring reliability in demanding industrial environments.

Single Diodes Feature Summary

• High-power rectification capability with a 40 A average forward current rating
• Robust voltage handling with a maximum repetitive peak reverse voltage of 1000 V
• Standard recovery time characteristics suitable for general-purpose power conversion
• Durable metal case construction facilitating effective heat transfer and mechanical stability

Single Diodes Applications

• Industrial motor drives and control systems
• High-power AC/DC power supply units
• Battery charging equipment requiring robust rectification
• Welding machines and heavy-duty power converters

Single Diodes Procurement Notes

Verify the specific voltage sub-rating required, as the 1N1188 designation covers a range from 50 V to 1000 V peak reverse voltage. Confirm that the procurement specification matches the exact voltage code suffix if applicable, as performance varies across the series. Ensure the supplier provides documentation confirming compliance with the specified RoHS standards and lead-free manufacturing processes for modern assembly requirements.

Single Diodes Selection Notes

Select this component when a single-phase or multi-phase rectifier requires a 40 A continuous current capacity with high voltage isolation. The DO-5 metal package necessitates a heatsink interface compatible with stud mounting. Consider the thermal resistance and ambient operating conditions to ensure the junction temperature remains within the specified -65°C to +200°C range during peak load operations.

Single Diodes Part Context

The 1N1188 belongs to the family of standard recovery power silicon rectifier diodes manufactured by Microchip Technology. This series includes variants with different voltage ratings but shares common current and packaging specifications. These diodes are engineered for durability in harsh electrical environments, providing a reliable solution for converting alternating current to direct current in high-energy applications.

Single Diodes Replacement Considerations

Equivalent parts include the Vishay 1N1188 and Diotec D1N1188. Verify that substitute components match the 40 A current rating and the specific peak reverse voltage requirement of the original design. Ensure the replacement maintains the same DO-5 metal case form factor for mechanical compatibility.