1N1203BR

Single Diodes Overview

The Microchip Technology 1N1203BR is a standard recovery rectifier diode designed for high-power applications. It features a single configuration with a maximum repetitive reverse voltage of 300 V and an average forward current rating of 12 A. The device utilizes a stud mount installation style within a DO-203AA-2 (DO-4) package. Key electrical characteristics include a maximum forward voltage of 1.2 V at rated current, a peak non-repetitive surge current capability of 250 A, and a low reverse leakage current of 10 µA. It operates reliably across a junction temperature range from -65 °C to +200 °C.

Single Diodes Feature Summary

• High thermal stability supporting operation up to 200 °C junction temperature
• Robust surge current handling capability for transient protection
• Stud mount construction for efficient heat dissipation

Single Diodes Applications

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

Single Diodes Procurement Notes

Verify the specific suffix BR against official Microchip documentation to confirm exact manufacturing lot or packaging variations. Confirm RoHS compliance status as indicated in datasheets, noting that some variants may not meet current environmental directives. Validate the DO-203AA package dimensions and mounting hole specifications prior to PCB layout integration to ensure mechanical compatibility.

Single Diodes Selection Notes

Select this component when high current capacity and wide temperature tolerance are required in a stud-mount form factor. Compare the 12 A continuous current rating against system load requirements. Ensure the 300 V reverse voltage rating exceeds the peak inverse voltage present in the circuit. Consider the thermal resistance of the mounting interface to maintain junction temperatures within the specified 200 °C limit under full load conditions.

Single Diodes Part Context

This part belongs to the 1N1203 series of standard rectifiers manufactured by Microchip Technology. The series includes variants such as 1N1203B and 1N1203C, which share similar electrical profiles but may differ in packaging or specific testing criteria. These devices are engineered for general-purpose rectification in demanding industrial environments where reliability and thermal performance are critical.

Single Diodes Replacement Considerations

Consult official cross-reference lists for verified substitutes. Generic equivalents must match the 12 A current, 300 V voltage, and DO-203AA package constraints.