The SEMIKRON SKKT15/08 is a dual SCR (thyristor) power module configured in an inverse-parallel or series arrangement within a single isolated package. Rated for 15A average on-state current and 800V repetitive peak off-state voltage (VDRM/VRRM), this module is built to SEMIKRON's SEMIPAK standard with an electrically isolated copper baseplate for straightforward heatsink mounting. It is designed for phase-angle control, AC voltage regulation, and switching applications where reliable, gate-triggered conduction and proven long-term thermal stability are critical requirements.

The SKKT15/08 sees wide deployment across industrial and commercial power systems. Typical applications include three-phase soft starters, AC motor speed control, resistance heating regulators, transformer tap changers, and UPS input rectifier stages. Its compact dual-thyristor configuration simplifies PCB and busbar design while reducing component count in variable-voltage AC controllers. The isolated baseplate is compatible with standard SEMIKRON heatsink systems, making it a direct replacement candidate in existing drive and control panel assemblies where space and thermal management are already engineered around the SEMIPAK footprint.

Quick Reference: SKKT15/08

Key Features of the SKKT15/08:

• Dual thyristor (SCR) topology in a single SEMIPAK module — enables compact inverse-parallel AC switching or series DC configurations
• 800V VDRM/VRRM blocking voltage with high dV/dt and dI/dt ratings suited for industrial line voltages up to 480VAC
• 15A average on-state current with low on-state voltage drop (VT) for reduced conduction losses in continuous phase-control duty
• Electrically isolated aluminum oxide ceramic baseplate — simplifies heatsink mounting and meets creepage/clearance requirements for industrial equipment
• Gate trigger current (IGT) and holding current (IH) parameters optimized for standard SCR gate driver ICs and optocoupler trigger circuits
• Fully compatible with SEMIKRON's published SEMIPAK heatsink lineup, supporting direct drop-in replacement in existing system designs

The SKKT15/08 carries a factory lead time of approximately 31 weeks for new production orders, which is common across SEMIKRON's SEMIPAK thyristor line as global semiconductor supply chains continue to experience extended scheduling windows. For maintenance teams managing aging drives or field replacements, waiting on factory production is rarely an option. ATI Accurate Technology actively monitors distributor networks, authorized channels, and verified excess inventory sources to locate SKKT15/08 stock ahead of standard lead times. Contacting ATI early in your procurement cycle is the most effective strategy for securing parts without halting production.

ATI Accurate Technology is a power semiconductor distributor based in Palmetto, Florida, stocking IGBTs, thyristors, diodes, and rectifier modules including hard-to-find and long lead time parts like the SKKT15/08. Orders placed before 5PM EST ship same day when stock is available. Call 239-734-7566 or email sales@igbts.us for real-time availability, datasheet support, and volume pricing. ATI serves MRO, OEM, and contract manufacturing customers across North America.