The SEMIKRON SKKT92/18E is a dual thyristor (SCR) module delivering 92A average on-state current (IT(AV)) and a 1800V repetitive peak reverse voltage (VRRM), making it well-suited for high-voltage AC phase control, soft-start circuits, and controlled rectifier bridges. Housed in SEMIKRON's robust screw-terminal module package, the SKKT92/18E offers low thermal resistance, high surge current capability, and a gate trigger interface compatible with standard firing boards used across industrial drive platforms.

The SKKT92/18E sees widespread deployment in AC motor soft-starters, resistance welding controllers, induction heating systems, crane and hoist drives, and three-phase controlled rectifier topologies used in DC drive systems. Its high voltage rating makes it particularly valuable in medium-voltage grid-tied equipment and power conversion stages where transient overvoltage events are common. Engineers specify this module in both new designs and legacy system refurbishments where the SEMIKRON form factor and pinout are already designed into the PCB and heatsink assembly.

Quick Reference: SKKT92/18E

Key Features of the SKKT92/18E:

• Dual thyristor (common cathode or common anode) configuration in a single isolated base module, simplifying heatsink mounting and reducing assembly footprint
• 1800V VRRM rating provides robust voltage margin in 690V AC line applications and medium-voltage converter stages
92A IT(AV) per thyristor with high surge current (ITSM) capability for fault-tolerant operation in demanding industrial environments
• Low thermal resistance junction-to-case (RthJC) for efficient heat transfer to forced-air or liquid-cooled heatsink assemblies
• Gate trigger requirements compatible with standard SCR firing cards widely used in legacy and current-generation drive controllers
• Manufactured to SEMIKRON's established quality standards with full traceability, suitable for IEC and UL-recognized power conversion equipment

With a factory lead time of approximately 27 weeks for new production, the SKKT92/18E presents a serious procurement challenge for facilities facing unplanned equipment failures or time-sensitive production schedules. SEMIKRON thyristor modules at this voltage and current class are not commodity shelf items, and delays can translate directly into costly downtime. ATI Accurate Technology maintains an active sourcing network for exactly these situations, working to locate new OEM stock outside normal distribution channels to bridge the gap when factory lead times are unacceptable.

ATI Accurate Technology is based in Palmetto, Florida and specializes in IGBTs, thyristors, diodes, and rectifier modules — including hard-to-find and long-lead-time parts like the SKKT92/18E. Orders placed before 5PM EST ship same day when stock is on hand. Contact our team for real-time availability, volume pricing, and sourcing support. Call 239-734-7566 or email sales@igbts.us.