1N4048

Single Diodes Overview

The Powerex Inc. 1N4048 is a high-power silicon rectifier diode designed for demanding industrial applications. It features a maximum repetitive peak reverse voltage of 600 V and an average forward rectified current rating of 275 A. The device utilizes a stud mount configuration within the DO-205AB (DO-9) package, supporting base mounting for efficient thermal dissipation. Key electrical characteristics include a maximum non-repetitive peak surge current of 5000 A and a junction temperature range spanning from -65°C to +190°C. With a standard recovery speed exceeding 500 ns and a maximum reverse leakage current of 12 mA at rated voltage, this component ensures reliable operation in heavy-duty power conversion systems.

Single Diodes Feature Summary

• High current handling capability with a 275 A average forward rectified current rating
• Robust surge withstand capacity reaching 5000 A non-repetitive peak forward surge current
• Extended thermal performance allowing operation up to a 190°C junction temperature
• Durable stud mount construction in a DO-205AB package for secure mechanical installation

Single Diodes Applications

• Industrial motor drive rectification circuits
• Welding equipment power supplies
• Heavy-duty DC power distribution systems

Single Diodes Procurement Notes

Verify the specific manufacturer datasheet for the 1N4048 to confirm exact pinout orientation and torque specifications for the mounting stud. Ensure that the cooling interface matches the required thermal resistance values for your application. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process. Cross-reference the part number with official distributor catalogs to avoid counterfeit components.

Single Diodes Selection Notes

Select the 1N4048 when designs require high current capacity in a rugged stud-mount package. Consider its 600 V reverse voltage rating against system transients. Evaluate the thermal management requirements given the 275 A continuous current capability. Compare its standard recovery time against faster alternatives if switching frequency is a critical design constraint. Ensure the DO-205AB footprint fits the mechanical constraints of the assembly.

Single Diodes Part Context

The 1N4048 belongs to the legacy 1N40xx series of high-current rectifiers originally defined by JEDEC standards. Powerex Inc., now part of IXYS Corporation, continues to manufacture these devices using advanced silicon planar technology. This series is widely recognized in industrial sectors for its reliability under harsh electrical conditions. The DO-205AB package provides a standardized form factor for easy integration into existing chassis designs requiring robust power rectification.

Single Diodes Replacement Considerations

Direct replacements must match the 275 A current rating, 600 V reverse voltage, and DO-205AB stud mount package. Verify that substitute parts meet or exceed the 5000 A surge current capability and 190°C junction temperature limit. Check for identical pinout configurations to ensure compatibility with existing heatsink interfaces.