1N3173

Single Diodes Overview

The Microchip Technology 1N3173 is a silicon power rectifier diode designed for high-current applications. It features a rugged glass-to-metal seal construction with a glass-passivated die. The device supports a maximum repetitive peak reverse voltage (VRRM) ranging from 50 to 1600 volts, with specific variants rated at 900V. It handles an average output current of 240A and a non-repetitive peak forward surge current of 3000A. Operating temperatures range from -65°C to 200°C. The component is housed in a DO-9 (DO-205AB) metal package.

Single Diodes Feature Summary

• High surge current capability for robust performance under transient loads
• Glass-to-metal seal construction ensuring environmental durability
• Glass passivated die for enhanced junction protection

Single Diodes Applications

• Power supply circuits requiring high current rectification
• Industrial equipment power stages
• Heavy-duty electrical systems

Single Diodes Procurement Notes

Verify the specific voltage rating variant required, as VRRM ranges from 50V to 1600V across the series. Confirm package compatibility with DO-9 mounting standards. Check RoHS compliance status, as some listings indicate non-compliance. Ensure thermal management solutions support the 200°C maximum operating temperature. Validate manufacturer source against authorized distributors to avoid counterfeit components.

Single Diodes Selection Notes

Select this component when high average current handling of 240A is necessary. Consider the wide voltage range options to match circuit reverse voltage requirements. Evaluate the DO-9 package for stud-mounting constraints. Assess thermal dissipation needs given the high current capacity. Compare surge current ratings against expected fault conditions in the application design.

Single Diodes Part Context

The 1N3173 belongs to the standard rectifier diode family manufactured by Microchip Technology and formerly Microsemi. It is part of a broader line of high-power silicon rectifiers designed for industrial and automotive applications. The DO-9 package is a traditional metal case style often used in heavy-duty electronics. Similar parts in the series include other 1N3xxx variants with different voltage ratings.

Single Diodes Replacement Considerations

Cross-reference with other 1N3xxx series diodes from Microchip or Powerex for equivalent current and voltage ratings. Verify pinout and mechanical dimensions for DO-9 compatibility. Ensure thermal characteristics match the original design requirements.