1N1203C

Single Diodes Overview

The Microchip Technology 1N1203C is a standard recovery rectifier diode designed for high-power applications. It features a maximum repetitive reverse voltage of 300 V and an average forward rectified current of 25 A. The device utilizes a stud mount configuration within a DO-203AA (DO-4) package, facilitating robust thermal management. Key electrical characteristics include a forward voltage of 1.1 V at 30 A and a maximum non-repetitive peak surge current of 250 A. The component supports a wide operating junction temperature range from -65°C to +200°C, ensuring reliability in demanding environments.

Single Diodes Feature Summary

• High thermal capacity via stud mount installation for efficient heat dissipation
• Wide operating junction temperature range extending up to +200°C
• Robust surge current handling capability for transient protection

Single Diodes Applications

• Industrial power supply rectification
• Battery charging systems
• DC motor drive circuits

Single Diodes Procurement Notes

Verify RoHS compliance status prior to procurement, as the component may not meet current environmental directives. Confirm lead times with authorized distributors, as production cycles can extend significantly. Ensure the specific ordering suffix matches the required packaging or marking specifications. Validate that the DO-203AA package dimensions align with the target heatsink interface. Review datasheet revisions for any recent manufacturing changes affecting pinout or performance parameters.

Single Diodes Selection Notes

Select this component when high current handling and elevated temperature operation are critical requirements. The 25 A rating suits medium-to-high power conversion tasks. Consider the stud mount requirement for mechanical integration and thermal path design. Compare against fast recovery alternatives if switching speed is a priority over ruggedness. Ensure the 300 V reverse voltage rating exceeds the peak inverse voltage in the application circuit.

Single Diodes Part Context

The 1N1203C belongs to the 1N1203 series of silicon rectifiers manufactured by Microchip Technology. This series is characterized by its durability and ability to operate under harsh conditions. The DO-4 metal case construction provides superior thermal conductivity compared to plastic packages. It serves as a legacy replacement for older military-grade rectifier standards while maintaining modern manufacturing consistency.

Single Diodes Replacement Considerations

Direct substitutes include the 1N1203B, which shares similar electrical ratings but may differ in specific forward voltage tolerances. Verify pin compatibility and mounting hole patterns when swapping between variants. Ensure thermal resistance values are comparable to maintain junction temperature limits.