The SEMIKRON SKKT131/16D is a dual SCR (thyristor) module delivering 130A average on-state current (I_T(AV)) and a 1600V repetitive peak off-state voltage (V_DRM/V_RRM). Built in SEMIKRON's industry-standard SKKT power package, this module integrates two thyristors in a common base configuration, enabling straightforward implementation in half-controlled or fully controlled bridge topologies. Low thermal resistance from junction to case and a robust copper base plate ensure stable, long-service operation in demanding industrial environments where thermal cycling and high surge currents are routine.

The SKKT131/16D is a proven choice for engineers designing or maintaining AC motor soft starters, phase-angle AC power controllers, DC drive converters, excitation systems, and industrial rectifier assemblies. Its dual SCR configuration simplifies PCB and busbar layouts in three-phase half-wave or single-phase full-wave bridge circuits. The module also sees regular use in UPS input stage control, electrochemical process rectifiers, crane and hoist drives, and resistance welding equipment—any application where high-voltage phase control and reliable repetitive surge handling are non-negotiable requirements.

Quick Reference: SKKT131/16D

Key Features of the SKKT131/16D:

• Dual SCR configuration in a shared base plate SKKT package — ideal for half-controlled and fully controlled bridge topologies
• 1600V V_DRM/V_RRM blocking voltage with high dV/dt and dI/dt ruggedness for line-commutated applications
• 130A I_T(AV) continuous on-state current with high repetitive surge current (I_TSM) capability for demanding load profiles
• Low junction-to-case thermal resistance (R_th(j-c)) enabling effective heat dissipation through standard heatsink mounting
• Isolated copper base plate construction for direct heatsink mounting without additional isolation hardware in most configurations
• Gate trigger characteristics optimized for reliable firing across industrial gate driver circuits operating in electrically noisy environments

SEMIKRON SKKT-series thyristor modules have faced extended factory lead times — currently running approximately 41 weeks for new production — due to ongoing semiconductor supply chain constraints and sustained global demand for industrial power control components. For OEMs managing production schedules and MRO teams supporting aging drive systems, waiting nearly a year for a critical component is not always an option. ATI Accurate Technology actively sources long-lead-time and allocated SEMIKRON parts to bridge that gap and keep your operations or build schedules on track.

ATI Accurate Technology is a power semiconductor distributor located in Palmetto, Florida, specializing in IGBTs, thyristors, diodes, and rectifier modules — including obsolete, allocated, and long-lead-time parts. Orders placed before 5PM EST ship same day. For pricing, availability, and volume quotes on the SKKT131/16D, call 239-734-7566 or email sales@igbts.us. Volume and contract pricing available.