1N3889R

Single Diodes Overview

The 1N3889R is a standard rectifier manufactured by Microchip Technology, designed for general-purpose power conversion applications. It features a maximum DC reverse voltage of 50V and an average forward rectified current rating of 12A. The device utilizes a DO-203AA (DO-4) leaded package suitable for panel or chassis mounting. Electrical characteristics include a maximum reverse leakage current of 10 µA at the rated voltage and a typical forward voltage drop of 1.5V at 20A. The component supports a junction temperature range from -65°C to +175°C and exhibits a reverse recovery time of 200 ns.

Single Diodes Feature Summary

• High thermal stability with a wide operating junction temperature range up to 175°C
• Robust mechanical construction in a DO-203AA leaded package for secure mounting
• Fast switching capability with a 200 ns reverse recovery time

Single Diodes Applications

• Industrial power supply rectification
• Battery charging circuits
• DC-to-AC inverter output stages

Single Diodes Procurement Notes

Verify the specific suffix 'R' against official Microchip documentation to confirm if it denotes a specific tape-and-reel configuration or packaging variant distinct from the standard bulk version. Confirm RoHS compliance status as historical data indicates non-compliance for this series. Validate that the DO-203AA footprint matches the target PCB design requirements before finalizing procurement.

Single Diodes Selection Notes

Select this component when a high-current 12A rectifier with a 50V blocking voltage is required. Ensure the application environment accommodates the leaded DO-203AA package style. Consider the 200 ns reverse recovery speed for frequencies where standard slow recovery diodes may generate excessive heat. Verify thermal management capabilities are sufficient for the expected forward current losses.

Single Diodes Part Context

This part belongs to the 1N3889 series of fast recovery rectifiers produced by Microchip Technology. The series typically includes variants with different voltage ratings such as 1N3890 and 1N3891. These components are widely used in legacy industrial designs requiring reliable high-current rectification in robust leaded packages.

Single Diodes Replacement Considerations

Consult official cross-reference lists for verified substitutes. Generic equivalents must match the 12A current rating, 50V reverse voltage, and DO-203AA package dimensions.