POWEREX – CD631615B – Dual Thyristor SCR Power Module – 1600V 160A – Reclaimed Part

Powerex — CD631615B Thyristor Power Module

What it is

The Powerex CD631615B 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, it combines two high-current SCR devices in an electrically isolated module 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 is built to tolerate substantial startup currents and transient loads. Its high 1600 V blocking capability makes it particularly useful in line-powered industrial systems where voltage margin and surge durability are critical.

The electrically isolated POW-R-BLOK™ baseplate allows the module to be mounted directly to a suitable heatsink while maintaining electrical separation between the semiconductor circuit and chassis. This construction simplifies service replacement and thermal management in legacy UPS systems and industrial power equipment.

At-a-Glance

• Manufacturer: Powerex
• Part Number: CD631615B
• 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 applications.
• 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 and chassis grounding.
• Service-friendly design — Heavy-duty power connections and accessible gate connections support field repair and replacement.
• Legacy equipment support — Useful for maintaining UPS systems and industrial equipment where original semiconductor modules may be obsolete or difficult to source.

Technical Specifications

Compatibility / Representative Uses