A430PB

Single Diodes Overview

The A430PB is a Phase Control Silicon Controlled Rectifier (SCR) manufactured by Powerex Inc. It features a disk button package with four terminals and is constructed using ceramic, metal-sealed cofired materials. The device supports an average current of 680 Amperes and offers a repetitive peak reverse voltage range from 500 to 1300 Volts. Key electrical characteristics include a circuit commutated turn-off time of 125 µs, a critical rate of rise of off-state voltage of 200 V/µs, and a maximum DC gate trigger current of 125 mA. The component operates within a temperature range of -40 °C to 125 °C.

Single Diodes Feature Summary

• Designed for phase control applications with high average current handling capabilities
• Utilizes a robust ceramic, metal-sealed cofired construction for durability
• Features a single configuration with a disk button form factor

Single Diodes Applications

• Phase control circuits requiring high power switching
• Industrial power regulation systems
• High voltage rectification applications

Single Diodes Procurement Notes

Verify the specific voltage rating variant required, as the A430PB series covers a range from 500 to 1300 Volts. Confirm the exact datasheet version matches the intended thermal and electrical specifications. Ensure the disk button package dimensions align with the mounting hardware in the final assembly design.

Single Diodes Selection Notes

Select this component based on the required average current of 680 Amperes and the necessary blocking voltage level within the 500-1300 Volt range. Consider the 125 µs turn-off time for compatibility with the circuit frequency. Evaluate the thermal management requirements given the metal-sealed ceramic package and operating temperature limits.

Single Diodes Part Context

This SCR belongs to the Powerex phase control family, designed for demanding industrial environments. The disk button style facilitates efficient heat sinking through direct contact with a baseplate. It serves as a fundamental building block for high-power AC control and conversion systems where reliability under high stress is critical.

Single Diodes Replacement Considerations

Consult official cross-reference guides for equivalent Phase Control SCRs with matching 680A average current and compatible voltage ratings. Verify that any substitute maintains the same disk button package and terminal configuration for mechanical interchangeability.