1N3890

Single Diodes Overview

The Microchip Technology 1N3890 is a standard single rectifier diode designed for high-current applications. It features a maximum DC reverse voltage of 100 V and an average forward rectified current rating of 20 A. The device utilizes a DO-203AA (DO-4) leaded package with stud mounting capabilities. Electrical characteristics include a maximum forward voltage of 1.5 V at 38 A and a reverse leakage current of 10 µA at 100 V. The junction temperature range spans from -65°C to +175°C, ensuring reliability in demanding thermal environments.

Single Diodes Feature Summary

• High current handling capability suitable for power supply rectification
• Robust construction with stud mounting for efficient heat dissipation
• Extended operating temperature range for industrial durability

Single Diodes Applications

• Industrial power supply rectification
• Battery charging circuits
• DC power distribution systems

Single Diodes Procurement Notes

Verify the specific suffix designation when ordering, as variations may exist within the product line. Confirm RoHS compliance status prior to integration, as this component family may not meet all environmental directives. Ensure the procurement documentation matches the exact part number to avoid discrepancies in electrical ratings or physical dimensions during assembly.

Single Diodes Selection Notes

Select this component for applications requiring robust 20 A rectification at low voltage drops. The DO-203AA package necessitates appropriate heatsinking strategies due to the stud mount configuration. Evaluate the 100 V reverse voltage limit against peak inverse voltage transients in the target circuit to ensure adequate safety margins under all operating conditions.

Single Diodes Part Context

This component belongs to the 1N3889 through 1N3893 series of standard rectifiers manufactured by Microchip Technology. These devices share similar mechanical footprints but differ in voltage and current ratings. The 1N3890 specifically targets the 100 V / 20 A segment of this lineup, offering a balance of voltage withstand and current capacity for general-purpose power electronics.

Single Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N3890 equivalents to verify pinout compatibility and thermal resistance values. Ensure that any substitute device maintains the same DO-203AA stud mount form factor and meets the required 20 A continuous current rating without derating issues.