1N248B

Single Diodes Overview

The Microchip Technology 1N248B is a silicon power rectifier diode designed for high-current applications. It features a maximum repetitive peak reverse voltage of 50 V and an average forward rectified current rating of 40 A. The device utilizes a stud mount configuration within the DO-5 (DO-203AB) package, facilitating robust thermal management. Key electrical characteristics include a maximum reverse leakage current of 10 µA at 50 V and a forward voltage drop of 1.19 V at 90 A. The component operates across a junction temperature range of -65°C to +200°C and exhibits standard recovery speed exceeding 500 ns.

Single Diodes Feature Summary

• High current handling capability with a 40 A average forward rectified current rating
• Robust thermal performance enabled by stud mount installation in the DO-5 package
• Wide operating temperature range supporting extreme environmental conditions up to 200°C junction temperature

Single Diodes Applications

• Industrial power supply rectification
• Battery charging systems
• Welding equipment power stages

Single Diodes Procurement Notes

Verify the specific manufacturer source, as historical production may involve transitions between Microsemi and Microchip Technology. Confirm the exact datasheet revision matches your design requirements. Ensure the DO-5 stud mount footprint aligns with your PCB or chassis mounting hardware specifications before finalizing procurement orders.

Single Diodes Selection Notes

Select this component when designing circuits requiring high surge current tolerance and reliable rectification at low voltage drops. The stud mount style is preferred over through-hole options for superior heat dissipation in high-power density designs. Evaluate thermal resistance parameters against your heatsink capabilities to ensure the junction temperature remains within the specified operational limits during continuous load cycles.

Single Diodes Part Context

The 1N248B belongs to the family of general-purpose silicon power rectifiers manufactured by Microchip Technology. These devices are engineered for durability in demanding industrial environments. The DO-5 package provides a standardized mechanical interface for screw-down mounting, ensuring secure electrical connections and efficient heat transfer to external cooling structures.

Single Diodes Replacement Considerations

Cross-reference with other 50V 40A stud-mount rectifiers from the same manufacturer family. Verify pinout compatibility and thermal resistance values before substituting with equivalent parts from other vendors to maintain system reliability.