The SEMIKRON SKKT41/16D is a dual thyristor (SCR) module in the SEMIPACK 1 package, rated for 41A average on-state current (IT(AV)) and a 1600V repetitive peak off-state voltage (VDRM/VRRM). Built to SEMIKRON's established quality standards, this module integrates two reverse-blocking thyristors in a common base-plate configuration, offering low thermal resistance and robust surge current capability. It is engineered for continuous operation in high-reliability power conversion systems where stable phase control and long service life are non-negotiable requirements.

The SKKT41/16D sees widespread deployment across industrial AC and DC drives, soft-start motor controllers, UPS systems, battery chargers, and three-phase bridge rectifier stages in process automation equipment. Its voltage rating makes it well suited for applications fed directly from 690V or higher AC bus systems, and the dual-thyristor topology simplifies the assembly of half-controlled or fully controlled bridge configurations. Field engineers specify this module in crane drives, marine auxiliaries, welding power supplies, and regenerative DC drive front-ends where proven SEMIKRON reliability is preferred.

Quick Reference: SKKT41/16D

Key Features of the SKKT41/16D:

• Dual thyristor (SCR) configuration in a single SEMIPACK 1 base-plate module, reducing board space and assembly complexity in bridge circuits
• 1600V VDRM/VRRM rating provides robust voltage margin for 480V and 690V three-phase input applications with line transient headroom
• 41A average on-state current with high surge current (ITSM) capability suitable for inrush-heavy loads such as motor drives and transformers
• Low junction-to-case thermal resistance (RthJC) enables efficient heat transfer to external heatsinks, supporting high duty-cycle operation
• Isolated base plate construction simplifies heatsink mounting without additional electrical isolation hardware
• Compatible with standard SEMIKRON SEMIPACK footprint, enabling direct drop-in replacement for legacy system retrofits

SEMIKRON thyristor modules including the SKKT41/16D carry a factory lead time of approximately 37 weeks for new production, creating serious supply risk for maintenance teams and OEM rebuild programs. Procurement professionals managing aging industrial drives, legacy rectifier panels, or equipment with no approved alternative part frequently encounter extended downtime waiting on factory orders. ATI Accurate Technology specializes in sourcing exactly these difficult components — maintaining network access to authorized channels and verified inventory sources for long-lead and hard-to-find SEMIKRON modules so your production line does not wait 37 weeks to get back online.

ATI Accurate Technology is headquartered in Palmetto, Florida and ships power semiconductors same day on orders placed before 5PM EST. Whether you need a single SKKT41/16D for an emergency repair or a scheduled quantity for a planned overhaul, our team is ready to help with competitive pricing, volume discounts, and fast turnaround. Call us at 239-734-7566 or email sales@igbts.us for real-time availability, lead time updates, and a quote today.