C431P1

Scrs Overview

The Powerex C431P1 is a phase control silicon controlled rectifier (SCR) designed for high-power industrial applications. It features a 1000V repetitive peak off-state voltage and a 600A average on-state current rating. The device utilizes a Press-Pak (DO-200AB) disk button package with ceramic-metal sealed cofired construction, supporting operation between -40°C and +125°C junction temperature. Key electrical characteristics include a maximum gate trigger voltage of 5V, a circuit turn-off time of 75µs, and a critical rate of turn-on voltage of 200V/µs. It handles an 8000A non-repetitive peak surge current and has a 950A RMS on-state current capability.

Scrs Feature Summary

• High thermal stability enabled by ceramic-metal sealed cofired disk button packaging
• Robust surge current handling capacity for demanding industrial loads
• Fast circuit commutation turn-off time suitable for phase control circuits
• Low gate drive requirements for efficient triggering

Scrs Applications

• Industrial motor drives and variable frequency drives
• High-power DC to AC inverters
• Resistive and inductive load control systems
• Welding equipment power supplies

Scrs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct voltage and current ratings. Confirm RoHS compliance status if required for your assembly process. Check lead times as they may vary based on production schedules. Ensure the Press-Pak mounting hardware is compatible with your thermal management design. Validate that the gate trigger parameters match your driver circuit capabilities.

Scrs Selection Notes

Select this component when high average current and robust surge handling are required in a compact disk form factor. Consider the 75µs turn-off time for high-frequency phase control applications. Ensure the system voltage does not exceed the 1000V rating under all transient conditions. Verify that the gate drive circuit can supply sufficient current to meet the 5V maximum trigger requirement reliably across the operating temperature range.

Scrs Part Context

The C431P1 belongs to Powerex's Phase Control SCR family, utilizing the standard DO-200AB Press-Pak footprint. This series is engineered for heavy-duty power conversion where reliability under high thermal stress is critical. The disk button style allows for direct mounting to heat sinks, facilitating efficient heat dissipation in high-power density designs compared to traditional stud-mounted alternatives.

Scrs Replacement Considerations

Cross-reference with other 1000V, 600A Press-Pak SCRs from manufacturers like Semikron or Microsemi. Ensure pinout compatibility and identical mechanical dimensions for direct substitution. Verify that the replacement device meets or exceeds the 75µs turn-off time and 8000A surge current specifications. Confirm thermal resistance values match the original design constraints.

Scrs FAQ

What is the maximum gate trigger voltage for the C431P1?

The maximum DC gate trigger voltage is 5V.

Does the C431P1 support high-frequency phase control?

Yes, it features a circuit turn-off time of 75µs, making it suitable for various phase control frequencies.

What is the recommended operating junction temperature range?

The device operates within a junction temperature range of -40°C to +125°C.