The Mitsubishi PS21963-AT is a fully integrated Intelligent Power Module combining high-speed IGBT switching elements with on-chip gate drive circuitry, fault protection logic, and bootstrap power supply support. This IPM is engineered to simplify inverter design while delivering reliable performance under the thermal and electrical stresses common in continuous-duty industrial environments. Its integrated protection features — including undervoltage lockout, overcurrent shutdown, and thermal monitoring — reduce external component count and improve system-level reliability in demanding power conversion applications.

The PS21963-AT is well suited for three-phase variable frequency drives (VFDs), HVAC compressor inverters, servo amplifiers, and general-purpose industrial motor control systems. Its compact form factor and integrated functionality make it a preferred solution for OEM equipment designers seeking to reduce PCB real estate and simplify protection architecture. End users in manufacturing, building automation, pump and fan control, and process industries rely on this module family for long-service-life deployments where replacement sourcing is a recurring concern.

Quick Reference: PS21963-AT

Key Features of the PS21963-AT:

• Integrated IGBT switching elements with built-in gate drive circuitry for simplified inverter design
• On-chip protection functions including overcurrent (OC) shutdown, undervoltage lockout (UVLO), and thermal shutdown
• Bootstrap circuit support reduces external high-side power supply requirements
• Fault output signal enables system-level monitoring and rapid fault response in drive controllers
• Low-inductance package design supports high switching frequencies with reduced EMI generation
• Optimized for three-phase inverter topologies in 600V-class motor drive applications

Mitsubishi Intelligent Power Modules in the PS21963-AT series carry factory lead times currently exceeding 99 weeks on new production orders — a serious challenge for maintenance teams managing aging VFD platforms or OEMs sustaining legacy product lines. When a drive goes down, waiting two years for a factory replenishment is not an option. Sourcing from a stocking distributor with verified new OEM inventory is the only practical path to minimizing downtime. ATI maintains independent inventory specifically to address these long lead time and obsolescence gaps across the Mitsubishi IPM product family.

ATI Accurate Technology is a power semiconductor distributor located in Palmetto, Florida, stocking IGBTs, IPMs, thyristors, diodes, and rectifier modules for same-day shipment on orders placed before 5PM EST. The PS21963-AT ships from our facility as new OEM product. Volume pricing is available for MRO stocking programs and OEM production runs. Contact our team directly at 239-734-7566 or sales@igbts.us for a quote, lead time confirmation, or technical support.