The Infineon TT105N1400KOF is a dual-thyristor (SCR) module delivering 105A average on-state current and a 1400V repetitive peak reverse voltage (VRRM), placing it firmly in the high-voltage industrial power control tier. Built in Infineon's industry-standard module platform, it features isolated base construction for straightforward heatsink mounting, low thermal resistance for efficient heat dissipation, and gate characteristics optimized for reliable triggering in phase-control and soft-start applications. This combination of voltage headroom, current capacity, and packaging practicality makes it a go-to solution for designers and maintenance teams working with heavy AC power conversion equipment.

The TT105N1400KOF is widely deployed across industrial motor drives, DC power supplies, welding equipment, electrochemical rectifiers, and crane and hoist drive systems where controlled AC-to-DC conversion is essential. Its 1400V blocking voltage provides the derating margin required when working on 690VAC three-phase distribution lines, and the 105A current rating supports mid-to-large horsepower drive stages. Utility and process industries also rely on this class of thyristor module in excitation systems, UPS infrastructure, and resistive or inductive heating controllers where precise phase-angle firing control is non-negotiable.

Quick Reference: TT105N1400KOF

Key Features of the TT105N1400KOF:

• 1400V VRRM rating provides robust voltage derating margin on 690VAC three-phase systems
• 105A average on-state current (IT(AV)) supports mid-to-large industrial drive and rectifier stages
• Dual SCR configuration in a single isolated-base module simplifies converter topology layout
• Low thermal resistance (RthJC) enables high power throughput with standard forced-air or liquid-cooled heatsinks
• Gate trigger characteristics optimized for consistent firing across phase-control and pulse triggering circuits
• Infineon standard module footprint allows direct replacement of equivalent competitive modules without mechanical redesign

With a current factory lead time of 99 weeks from Infineon, procurement teams sourcing the TT105N1400KOF for production builds, MRO stock replenishment, or emergency field replacements face a significant supply risk. Drive and rectifier downtime in industrial facilities carries serious operational and financial consequences — waiting nearly two years for factory delivery is not a viable option. ATI Accurate Technology maintains stock of hard-to-find and long-lead-time power semiconductors precisely for situations like this, providing immediate access to new OEM inventory when the factory pipeline is effectively closed.

ATI Accurate Technology is located in Palmetto, Florida, and ships the TT105N1400KOF same-day on orders received before 5PM EST. Whether you need a single replacement module or volume quantities for a production run, ATI offers competitive pricing and responsive service. Contact our power semiconductor specialists directly at 239-734-7566 or email sales@igbts.us for availability confirmation, volume pricing, and technical support.