The EUPEC TT56N12LOF is a thyristor (SCR) power module rated for 56A average on-state current and 1200V repetitive peak off-state voltage. Built to EUPEC's established module platform standards, this device integrates thyristor die in an isolated base package optimized for heat sink mounting, offering reliable gate-controlled switching performance in demanding power electronic circuits. Its robust construction and controlled turn-on characteristics make it well suited for precision power control where repeatability, thermal stability, and voltage blocking integrity are non-negotiable requirements in continuous-duty industrial environments.

The TT56N12LOF is deployed across a broad range of industrial power applications, including three-phase controlled rectifiers, soft starters, AC motor drive front-end converters, DC motor speed controllers, resistance heating systems, and uninterruptible power supplies. The 1200V voltage class provides adequate margin for 480V and 600V AC line-connected systems, while the 56A current rating suits mid-range drive platforms and auxiliary power stages. Industries served include steel processing, chemical production, paper and pulp, marine propulsion auxiliary systems, and material handling infrastructure where thyristor-based power control remains the proven, preferred topology.

Quick Reference: TT56N12LOF

Key Features of the TT56N12LOF:

• 1200V repetitive peak off-state and reverse voltage (VDRM/VRRM) providing robust margin on 480V–600V AC bus systems
• 56A average on-state current (IT(AV)) with thermal resistance characteristics suited for forced-air or liquid-cooled heat sink assemblies
• Isolated copper base plate for direct heat sink mounting, simplifying thermal management in standard module chassis designs
• Gate trigger specifications compatible with standard SCR firing card drivers and phase-angle control circuits
• High dI/dt and dV/dt capability supporting reliable turn-on in converter topologies with fast-switching gate pulses
• EUPEC module platform construction ensuring dimensional and pinout compatibility for drop-in replacement of equivalent legacy EUPEC thyristor modules

The TT56N12LOF carries a current factory lead time of 99 weeks for new production—effectively placing it in long-lead-time and near-obsolete status for many procurement teams. EUPEC's power module lines have progressively consolidated, making open-market inventory the only practical source for rapid fulfillment. Facilities relying on this part for installed drive systems, rectifier cabinets, or legacy converter platforms cannot afford to wait on new production. Maintaining a qualified spare or sourcing from a distributor with verified in-stock inventory is essential to protecting operational continuity and avoiding extended unplanned downtime.

ATI Accurate Technology, based in Palmetto, Florida, stocks the TT56N12LOF as new OEM product available for same-day shipment on orders received before 5PM EST. ATI specializes in hard-to-find, long-lead-time, and obsolete power semiconductors including IGBTs, thyristors, diodes, and rectifier modules. Volume pricing is available for MRO stocking orders and OEM procurement programs. Contact our team directly at 239-734-7566 or sales@igbts.us to confirm availability and lead time.