The SKKT56/14E is a dual SCR (thyristor) module from SEMIKRON's proven SEMIPACK series, rated for 56A average on-state current and a 1400V repetitive peak off-state voltage (VDRM/VRRM). Built for phase-controlled rectification and AC power regulation, this module integrates two thyristors in an isolated base package, simplifying heatsink mounting and reducing system wiring complexity. With robust thermal performance and well-established gate trigger characteristics, the SKKT56/14E is a dependable choice for demanding industrial power conversion topologies where thermal cycling and voltage transients are everyday realities.

The SKKT56/14E sees widespread deployment across industrial variable speed drives, soft starters, DC motor controllers, welding power supplies, and UPS systems. Its 1400V voltage class provides the headroom needed for 690V AC line inputs with adequate transient margin, while the 56A current rating suits mid-range power stages. Power conversion engineers also specify this module in crane and hoist controllers, induction heating equipment, and electrochemical process rectifiers where phase control is the preferred regulation method and long-term component availability is a critical procurement concern.

Quick Reference: SKKT56/14E

Key Features of the SKKT56/14E:

• Dual SCR configuration in a single isolated-base SEMIPACK package, enabling compact B2 or B6 bridge assemblies with minimal external hardware
• 1400V VDRM/VRRM voltage rating provides robust transient margin on 480V and 690V three-phase AC bus applications
• 56A average on-state current (IT(AV)) with defined surge current (ITSM) capability for reliable operation under fault and inrush conditions
• Isolated copper base plate for direct mounting to standard heatsinks, reducing thermal resistance and simplifying system-level thermal management
• Gate trigger parameters optimized for compatibility with standard SCR firing boards and phase-control ICs used in industrial drive platforms
• SEMIKRON SEMIPACK series construction delivers consistent lot-to-lot electrical and thermal performance, critical for OEM production and field replacement alike

The SKKT56/14E carries a 32-week factory lead time from SEMIKRON, placing it firmly in the long-lead-time category that can stall maintenance schedules and production lines. Obsolescence risk on mature SEMIPACK variants makes proactive sourcing essential. ATI Accurate Technology maintains active sourcing channels for exactly these scenarios — hard-to-find, extended lead time, and legacy SEMIKRON thyristor modules that standard distributors cannot fulfill on short notice. Whether you need a single replacement unit or a production buffer stock quantity, ATI has the sourcing depth to deliver verified new OEM product.

ATI Accurate Technology is headquartered in Palmetto, Florida, and stocks a broad inventory of power semiconductors with same-day shipping on orders placed before 5PM EST. For SKKT56/14E pricing, lead time confirmation, or volume order inquiries, contact our team directly at 239-734-7566 or sales@igbts.us. Volume pricing is available, and our specialists are ready to support your procurement or emergency replacement needs without delay.