The SEMIKRON SKT24/14E is a phase-control thyristor (SCR) module delivering 24A average on-state current and 1400V repetitive peak off-state voltage (V_DRM/V_RRM). Built into SEMIKRON's established SEMIPAK module platform, this device integrates a single thyristor cell with an isolated copper baseplate for direct heatsink mounting, offering a low-profile, reliable solution for designers who need predictable gate sensitivity, low thermal resistance, and robust blocking capability in a form factor optimized for panel-level integration.

The SKT24/14E is widely deployed in industrial AC power controllers, soft starters, phase-angle firing circuits, and DC motor drive front-ends where controlled rectification at medium current levels is required. Additional applications include resistance welding controls, thyristor-based heating regulators, UPS input stages, and crane or hoist drive systems. Its 1400V voltage class provides the necessary derating margin for 690VAC line-connected equipment operating in environments with significant voltage transients or line disturbances common in heavy industrial settings.

Quick Reference: SKT24/14E

Key Features of the SKT24/14E:

• 1400V V_DRM/V_RRM blocking voltage class — suitable for 690VAC three-phase applications with adequate derating margin
• 24A average on-state current (I_TAV) with low on-state voltage drop (V_T) minimizing conduction losses at rated load
• Isolated copper baseplate construction enables direct mounting to standard aluminum or copper heatsinks without additional insulation hardware
• Gate trigger current (I_GT) and holding current (I_H) characteristics optimized for compatibility with standard SCR firing boards and pulse transformers
• Compact SEMIPAK module footprint simplifies PCB or busbar integration and eases direct replacement of legacy SEMIKRON thyristor assemblies
• Designed and qualified to IEC/EN power semiconductor module standards, ensuring consistent performance across production lots

The SKT24/14E carries a factory lead time of approximately 28 weeks for new production orders — a reality that creates significant risk for maintenance operations and OEM production lines dependent on uninterrupted supply. SEMIKRON thyristor modules in this voltage and current class are frequently specified in aging drive systems and power controllers that have been in service for decades, making spot availability critical when a unit fails. ATI Accurate Technology actively maintains sourcing channels for long-lead and hard-to-find SEMIKRON devices, giving procurement teams a reliable path to genuine OEM inventory without extended downtime exposure.

ATI Accurate Technology is headquartered in Palmetto, Florida and stocks power semiconductors for same-day shipping on orders placed before 5PM EST. We supply maintenance engineers, OEM production facilities, and procurement teams with genuine SEMIKRON modules including hard-to-find and long-lead-time parts. Volume pricing is available. Contact our team directly at 239-734-7566 or sales@igbts.us for real-time availability, lead time updates, and quantity pricing on the SKT24/14E.