POWEREX – CD631615B-1123AR – IGBT Power Transistor – Reclaimed Part

Powerex — CD631615B-1123AR Thyristor Power Module

What it is

The Powerex CD631615B-1123AR is a heavy-duty 1600 V, 160 A dual phase-control thyristor module from the Powerex POW-R-BLOK™ family. Designed for industrial power-control applications, this module combines two high-current SCR devices in an electrically isolated package suitable for UPS input stages, controlled rectifiers, AC voltage regulators, motor soft starters, and other high-power conversion equipment.

With a 235 A RMS on-state current rating and non-repetitive surge capability reaching approximately 5.25 kA at 60 Hz, the CD631615B-1123AR is designed to withstand substantial startup currents and transient loads. Its 1600 V blocking capability provides the voltage margin needed for demanding line-powered industrial and critical-power applications.

The isolated POW-R-BLOK™ baseplate allows the module to be mounted to a suitable heatsink while maintaining electrical separation between the semiconductor circuit and chassis. The 1123AR suffix identifies this specific module variant; when replacing an existing unit, the complete part number, terminal arrangement, gate connections, and mechanical footprint should be matched to the original assembly.

At-a-Glance

• Manufacturer: Powerex
• Part Number: CD631615B-1123AR
• Voltage / Current: 1600 V / 160 A IT_AV
• RMS Current: 235 A IT_RMS
• Topology: Dual phase-control thyristor / SCR module
• Surge Capability: Up to approximately 5.25 kA
• Mounting: Chassis / heatsink mount with isolated baseplate
• Construction: Powerex POW-R-BLOK™ industrial power module
• Use Cases: UPS input bridges; controlled rectifiers; soft starters; AC regulators; industrial power controls
• Condition: Reclaimed Part

Features

• 1600 V blocking capability — Provides substantial voltage margin for demanding industrial power-control systems.
• High continuous current — Rated at 160 A average on-state current with 235 A RMS capability.
• High surge strength — Approximately 5.0 kA at 50 Hz and 5.25 kA at 60 Hz for short-duration transient events.
• Reliable gate triggering — Maximum gate trigger current of approximately 150 mA and gate trigger voltage of approximately 2 V.
• Dual SCR construction — Two controlled rectifier elements integrated into one industrial power block.
• Isolated baseplate — Simplifies heatsink mounting while maintaining electrical isolation from the chassis.
• Service-friendly construction — Heavy-duty power terminals and accessible gate connections support industrial field repair.
• Legacy equipment support — Well suited for maintaining UPS and industrial power equipment where the original module may be obsolete or difficult to source.

Technical Specifications

Compatibility / Representative Uses