1N1203B

Single Diodes Overview

The Microchip Technology 1N1203B is a standard recovery rectifier diode designed for high-power applications. It features a single configuration housed in a DO-203AA-2 stud mount package. The device supports a maximum repetitive peak reverse voltage of 300 V and an average forward current of 12 A. It exhibits a forward voltage drop of 1.2 V at rated current and a maximum non-repetitive peak surge current of 250 A. The component operates within a junction temperature range of -65°C to +200°C, with a reverse leakage current of 10 µA.

Single Diodes Feature Summary

• High thermal stability with a maximum operating junction temperature of 200°C
• Robust surge handling capability with a peak forward surge current rating of 250 A
• Standard recovery characteristics suitable for general-purpose power rectification

Single Diodes Applications

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

Single Diodes Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to ensure correct electrical parameters. Confirm RoHS compliance status as indicated in product specifications. Check for any recent manufacturing changes or packaging updates via official engineering change notices before finalizing procurement orders.

Single Diodes Selection Notes

Select this component when a stud-mount silicon rectifier with 300 V blocking capability and 12 A continuous current is required. Ensure the application circuit can accommodate the specified forward voltage drop and reverse leakage characteristics. Verify that the mounting hardware supports the DO-203AA mechanical dimensions and thermal requirements.

Single Diodes Part Context

The 1N1203B belongs to the 1N1203 series of standard rectifiers manufactured by Microchip Technology. This series utilizes silicon planar technology and is packaged in the DO-4 (DO-203AA) axial leaded case. The part is distinct from other variants in the family by its specific voltage and current ratings defined in the official data sheet.

Single Diodes Replacement Considerations

Consult official substitution guides for equivalent parts with matching 300 V, 12 A, and DO-203AA specifications. Verify pinout compatibility and thermal resistance values before replacing.