The SEMIKRON SKKT15/14 is a dual thyristor (SCR) module rated at 15A average current and 1400V repetitive peak off-state voltage (VDRM/VRRM). Built in SEMIKRON's industry-standard SKKT package, this module integrates two thyristors in a common-cathode or common-anode configuration suited for three-phase bridge rectifier and AC power control topologies. The robust ceramic substrate and isolated baseplate construction ensure reliable thermal transfer, making the SKKT15/14 a dependable choice for high-voltage, controlled power conversion designs where consistent gate triggering and low on-state losses are critical.

The SKKT15/14 sees widespread use across industrial AC and DC motor drives, soft starters, uninterruptible power supplies, resistance welding controllers, and field excitation systems for generators and large motors. Its 1400V voltage class provides adequate blocking margin in 690V AC mains applications, and the compact SKKT footprint simplifies drop-in replacement of legacy modules in existing drive cabinets. Power electronics engineers also specify it in electrochemical processing rectifiers and crane and hoist drive systems where phase-controlled thyristor bridges remain the preferred topology for high-torque, low-speed operation.

Quick Reference: SKKT15/14

Key Features of the SKKT15/14:

• 1400V VDRM/VRRM rating provides robust off-state blocking margin for 690V AC three-phase mains applications
• 15A average on-state current (IT(AV)) with low on-state voltage drop (VT) for efficient thermal management in compact drive enclosures
• Dual thyristor configuration in a single isolated-baseplate module simplifies PCB and busbar layout in bridge rectifier topologies
• Industry-standard SKKT package with M5 power terminals ensures direct mechanical and electrical interchangeability with equivalent SEMIKRON and compatible third-party modules
• High dI/dt and dV/dt capability supports reliable triggering in phase-angle and burst-firing control circuits without requiring excessive snubber networks
• Electrically isolated copper baseplate rated for direct mounting to heatsink, enabling straightforward thermal stack design without additional isolation pads

The SKKT15/14 carries a factory lead time of approximately 35 weeks for new production orders, which is typical of SEMIKRON's current SKKT-series scheduling. For maintenance operations or unplanned equipment failures, waiting nearly nine months for factory supply is not viable. ATI Accurate Technology maintains active sourcing channels for long lead-time and allocation-constrained SEMIKRON thyristor modules, including legacy SKKT variants that have transitioned to limited production status. Whether you need a single replacement unit or a buffer stock order, ATI can provide timely options that keep your equipment running without extended downtime.

ATI Accurate Technology is located in Palmetto, Florida, and specializes in IGBTs, thyristors, diodes, and rectifier modules — including obsolete and hard-to-find parts. Orders placed before 5PM EST ship same day when product is in stock. For pricing, lead-time alternatives, and volume discounts on the SKKT15/14 or any SEMIKRON thyristor module, contact our team directly at 239-734-7566 or sales@igbts.us.