C431PN1

Scrs Overview

The C431PN1 is a silicon controlled rectifier (SCR) manufactured by Powerex Inc., designed for high-power phase control applications. It utilizes the Press-Pak (Pow-R-Disc) mounting style, specifically the B-PUK package configuration. The device supports a repetitive peak off-state voltage of 1.8 kV and handles an RMS on-state current of 950 A. Key electrical parameters include a maximum average on-state current of 490 A, a non-repetitive surge current capacity of 7000 A at 50 Hz, and a gate trigger voltage maximum of 5 V. It operates within a junction temperature range of -40°C to 125°C.

Scrs Feature Summary

• Utilizes all-diffused silicon technology for enhanced durability and performance in phase control circuits.
• Features a clamp-on Press-Pak mechanical design for secure base mounting and efficient thermal management.
• Provides standard recovery characteristics suitable for industrial power conversion requirements.

Scrs Applications

• Industrial motor drives
• High-power DC-to-AC inverters
• Resistive load control systems

Scrs Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical ratings and mechanical tolerances. Ensure that the procurement channel provides valid traceability and authenticity certificates. Confirm compatibility with existing cooling infrastructure before integration. Cross-reference the part number with the latest datasheet revisions to avoid discrepancies in pinout or parameter specifications during the sourcing process.

Scrs Selection Notes

Select this component when designing systems requiring robust handling of high continuous currents alongside significant surge capabilities. The Press-Pak form factor is optimal for applications demanding reliable thermal dissipation through direct base mounting. Evaluate the gate drive requirements against the specified trigger voltage limits to ensure proper circuit triggering. Consider the physical dimensions of the B-PUK package for adequate clearance and heat sink interface planning.

Scrs Part Context

This SCR belongs to the C431 series from Powerex, which focuses on high-current discrete semiconductor solutions. The series is engineered for demanding power electronics environments where reliability under thermal stress is critical. The Press-Pak architecture distinguishes these devices from traditional leaded packages by offering superior mechanical stability and lower inductance connections for high-frequency switching operations.

Scrs Replacement Considerations

Consult official cross-reference guides for compatible alternatives. Verify that any substitute matches the 1.8 kV blocking voltage and 950 A current rating. Ensure the replacement maintains the same Press-Pak mounting interface and thermal characteristics to preserve system integrity.