The Mitsubishi TM25DZ-20 is a dual thyristor (SCR) power module combining two SCR elements in a compact, isolated-base package rated for 25A average on-state current and a 2000V repetitive peak off-state voltage (VDRM/VRRM). Designed to meet the rigorous demands of industrial power conversion, the TM25DZ-20 delivers controlled rectification and AC phase control in a thermally efficient module format. Its isolated copper base plate simplifies heatsink mounting and supports reliable thermal management in high-duty-cycle environments where long-term stability is non-negotiable.

The TM25DZ-20 sees widespread deployment across industrial AC motor drives, resistance welding controllers, soft-start units, and thyristor power regulators used in heating and temperature control systems. It is equally well-suited for use in UPS systems, static transfer switches, battery chargers, and DC bus pre-charge circuits. Engineers specifying power control solutions for furnaces, extruders, injection molding machines, and crane drives routinely select 2000V-class thyristor modules like the TM25DZ-20 to provide the voltage headroom necessary to withstand line transients and switching surges without nuisance triggering or device stress.

Quick Reference: TM25DZ-20

Key Features of the TM25DZ-20:

• 25A average on-state current (IT(AV)) with 2000V repetitive peak off-state voltage for high-margin voltage blocking in demanding AC line environments
• Dual SCR configuration in a single isolated-base module reduces board space and simplifies gate drive circuitry relative to discrete device implementations
• Isolated copper base plate construction enables direct mounting to standard heatsinks without supplemental insulation hardware, lowering thermal resistance and assembly complexity
• High dV/dt and di/dt ratings support reliable commutation performance in phase-control and forced-commutation topologies common in industrial drives
• Designed for compatibility with standard Mitsubishi TM-series mounting footprints, facilitating direct replacement of legacy modules in existing equipment without mechanical redesign
• Optimized gate trigger characteristics (IGT, VGT) ensure consistent firing across temperature extremes encountered in industrial cabinet environments

With a factory lead time of 40 weeks on new production, the TM25DZ-20 presents a serious procurement challenge for maintenance teams managing unplanned equipment failures or engineers commissioning new builds on tight schedules. Mitsubishi thyristor modules of this class are well-established in long-running industrial platforms, meaning field replacements cannot wait for factory runs to complete. Sourcing from a stocking distributor with verified new OEM inventory is the only practical path to keeping production lines running and avoiding costly extended downtime on drives, power controllers, and rectifier systems.

ATI Accurate Technology, based in Palmetto, Florida, stocks the TM25DZ-20 new and ready to ship. Orders placed before 5PM EST ship same day. ATI specializes in hard-to-find, long-lead-time, and obsolete power semiconductors — IGBTs, thyristors, diodes, and rectifier modules. Volume pricing is available. Contact our team directly at 239-734-7566 or sales@igbts.us to confirm availability, request a quote, or discuss application requirements.