The SK35GAL12T4 is a 35A, 1200V IGBT module manufactured by Semikron, designed for high-efficiency switching in industrial power electronics systems. Based on Semikron's proven GAL (General Application Low-loss) platform, this module integrates an IGBT with a freewheeling diode in a configuration optimized for converter and inverter topologies. The T4 package format ensures straightforward PCB or baseplate mounting, and the 1200V voltage class provides the necessary blocking margin for 690VAC line-side applications with adequate derating headroom for transient overvoltages.

The SK35GAL12T4 is well suited for variable speed motor drives, industrial servo amplifiers, UPS systems, solar inverters, and welding power supplies where a reliable, mid-current IGBT module is required. Its low saturation voltage and optimized switching characteristics reduce thermal stress in continuous-duty applications. OEMs and maintenance engineers maintaining legacy drive platforms frequently specify this part for board-level or module-level replacement, making reliable sourcing a critical operational concern—especially given current semiconductor supply chain constraints affecting Semikron lead times industry-wide.

Quick Reference: SK35GAL12T4

Key Features of the SK35GAL12T4:

• 1200V collector-emitter blocking voltage (VCES) with adequate margin for 690VAC three-phase applications
• 35A continuous collector current rating suitable for mid-power industrial drive and converter designs
• Integrated antiparallel freewheeling diode for simplified inverter bridge implementation
• Low VCEsat characteristics minimize conduction losses and reduce heatsink thermal requirements
• T4 module package provides secure baseplate mounting and standard gate-emitter terminal layout for easy drop-in replacement
• Optimized for PWM switching frequencies typical in motor drive and inverter applications, balancing switching and conduction loss trade-offs

The SK35GAL12T4 carries a factory lead time of approximately 99 weeks for new production, placing it firmly in the long lead time category that challenges both OEM production schedules and MRO maintenance operations. Supply disruptions on Semikron's GAL-series modules have been widespread, and procurement teams relying solely on franchise distribution channels are frequently caught without stock when critical drive failures occur. ATI Accurate Technology maintains active sourcing networks for exactly these scenarios, helping engineers and buyers locate genuine, traceable inventory outside standard distribution pipelines before downtime becomes costly.

ATI Accurate Technology is located in Palmetto, Florida, and stocks a broad range of IGBTs, thyristors, diodes, and rectifier modules including obsolete and long lead time parts. Orders placed before 5PM EST ship same day when inventory is available. For pricing, availability, and volume discounts on the SK35GAL12T4, contact our team directly at 239-734-7566 or sales@igbts.us. Volume pricing is available for MRO and OEM procurement programs.