The EUPEC TT122N18KOF is a high-voltage thyristor module rated for 122A average on-state current and a peak repetitive off-state voltage of 1800V. Configured as a thyristor (SCR) module in EUPEC's rugged TT-series package, it is engineered for continuous duty in phase-control and power conversion circuits where thermal stability, high blocking voltage, and consistent gate triggering characteristics are non-negotiable. The TT122N18KOF reflects EUPEC's legacy of producing robust, industrial-grade power semiconductors trusted in critical infrastructure worldwide.

This module is well-suited for AC motor soft starters, DC motor drives, industrial heating controllers, static VAR compensators, and three-phase rectifier bridges operating at medium-to-high voltage levels. Its 1800V blocking capability provides the necessary safety margin in 690V and higher AC bus systems, while the 122A current rating supports demanding continuous-load applications in steel mills, mining equipment, chemical processing, marine drives, and renewable energy converter stages where controlled rectification and power regulation are essential.

Quick Reference: TT122N18KOF

Key Features of the TT122N18KOF:

• 1800V repetitive peak off-state and reverse voltage (VDRM/VRRM) for high-voltage bus compatibility in 690V+ AC systems
• 122A average on-state current rating suited for continuous-duty industrial power control applications
• EUPEC TT-series isolated base module construction for simplified heat sink mounting and system integration
• Low on-state voltage drop (VT) minimizes conduction losses and reduces thermal stress under sustained load
• Robust gate trigger characteristics ensure consistent firing across a wide range of gate drive conditions and temperatures
• Designed for phase-control operation with high di/dt and dv/dt capability appropriate for inductive industrial loads

With a factory lead time of 99 weeks on new production, the TT122N18KOF presents a significant procurement challenge for maintenance teams and OEM manufacturers who cannot afford extended downtime or production delays. EUPEC modules of this class are increasingly difficult to source through standard distribution channels as legacy platforms age and original production runs wind down. ATI Accurate Technology maintains inventory of hard-to-find, long-lead-time, and obsolete EUPEC thyristor modules precisely to bridge this gap — keeping your equipment running without a year-long wait for factory fulfillment.

ATI Accurate Technology is located in Palmetto, Florida and specializes in IGBTs, thyristors, diodes, and rectifier modules for industrial and OEM customers across North America. In-stock orders placed before 5PM EST ship same day. Whether you need a single replacement module or volume pricing for a larger procurement, our team is ready to help. Call us at 239-734-7566 or email sales@igbts.us to confirm availability and pricing on the TT122N18KOF today.