The SEMIKRON SKKT15/16E is a dual SCR (thyristor) module configured in an inverse-parallel or series arrangement within the industry-standard SKKT housing. Rated at 15A average on-state current (IT(AV)) and a 1600V repetitive peak off-state voltage (VDRM/VRRM), this module is engineered for phase-angle control and line-commutated converter topologies where high blocking voltage and reliable gate triggering are critical. The ceramic base provides 2500V AC electrical isolation between the power terminals and the mounting surface, simplifying thermal management and heatsink integration.

The SKKT15/16E is widely deployed in industrial AC motor soft-starters, DC servo and spindle drives, battery chargers, resistance welding controllers, and regenerative power supplies. Its robust thyristor construction handles the repetitive surge currents and di/dt stresses common in heavy manufacturing, CNC machining centers, crane and hoist drives, and process heating equipment. The module's compact footprint makes it a preferred choice for retrofitting legacy drive systems where board space is constrained and a direct form-fit-function replacement is required.

Quick Reference: SKKT15/16E

Key Features of the SKKT15/16E:

• 1600V VDRM/VRRM repetitive peak off-state voltage for high-line and three-phase 690V AC bus applications
• 15A IT(AV) average on-state current with defined surge current (ITSM) rating for transient overload tolerance
• Dual SCR configuration in a single module reduces component count and simplifies gate drive circuit layout
• Isolated ceramic base rated at 2500V AC, enabling direct heatsink mounting without additional insulation pads
• Low thermal resistance (Rth(j-c)) optimizes junction-to-case heat transfer for continuous duty cycle operation
• Industry-standard SKKT package footprint ensures mechanical interchangeability with prior and equivalent SEMIKRON series modules

With a factory new-production lead time of approximately 37 weeks, the SKKT15/16E presents a significant procurement challenge for maintenance teams facing unplanned downtime or OEMs managing service parts inventory. SEMIKRON's SKKT-series thyristor modules are deeply embedded in installed industrial equipment worldwide, meaning demand consistently outpaces available factory allocation. ATI Accurate Technology actively sources long-lead-time and hard-to-find SEMIKRON power modules through authorized and vetted supply channels, helping customers bridge the gap between factory lead times and production schedules.

ATI Accurate Technology is located in Palmetto, Florida and specializes in IGBTs, thyristors, diodes, and rectifier modules — including obsolete and long-lead-time parts like the SKKT15/16E. Orders placed before 5PM EST ship same day when stock is available. For current inventory status, volume pricing, and expedite options, contact our team directly at 239-734-7566 or sales@igbts.us. We support procurement professionals and engineers who need the right part fast.