A430PD

Overview

The A430PD is a general-purpose rectifier diode manufactured by Powerex Inc. It features a maximum repetitive peak reverse voltage of 1400 V and an average forward rectified current rating of 1000 A. The device utilizes a DO-200AB clamp-on package, designed for chassis mounting applications. Key electrical specifications include a reverse leakage current of 50 mA at the rated voltage and a reverse recovery time of 10 µs. This component is engineered for high-power industrial environments requiring robust DC rectification capabilities.

Feature Summary

• High current handling capability with a 1000 A average forward rectified current rating
• Robust voltage blocking performance supporting up to 1400 V repetitive peak reverse voltage
• Durable DO-200AB clamp-on package construction suitable for secure chassis mounting

Applications

• Industrial power supply rectification
• DC motor drive circuits
• Welding equipment power stages

Procurement Notes

Verify the specific datasheet version from Powerex Inc. to confirm exact thermal resistance values and mechanical dimensions for your chassis design. Ensure that the DO-200AB clamp-on interface matches your existing mounting hardware. Cross-reference the 1400 V and 1000 A ratings against your circuit's peak transient requirements to guarantee adequate safety margins during operation.

Selection Notes

Select this component when designing systems requiring high-voltage isolation combined with substantial continuous current flow. The clamp-on package facilitates efficient heat dissipation through direct contact with a heatsink or chassis. Consider the 10 µs reverse recovery time when evaluating switching losses in high-frequency applications, ensuring it aligns with the system's operational frequency constraints.

Part Context

This part belongs to the Powerex A-series of high-power silicon rectifiers. These devices are widely utilized in heavy-duty industrial electronics where reliability under extreme electrical stress is critical. The A430PD specifically addresses the need for high-voltage rectification in large-scale power conversion infrastructure.

Replacement Considerations

Check for compatible equivalents within the same manufacturer series that share identical DO-200AB packaging and electrical ratings. Verify that any substitute maintains the same 1400 V reverse voltage and 1000 A current capacity to ensure seamless integration without redesigning the cooling or mounting structure.