The VVZB135-16NO1-IXYS is an IXYS dual thyristor module rated for 135A RMS current and 1600V repetitive peak off-state voltage (VDRM/VRRM). The "VVZ" designation indicates a dual SCR configuration in a common-cathode topology, while the "B" suffix identifies the isolated baseplate package variant. With a 1600V voltage class and 135A current rating, this module is engineered for high-power phase-controlled and soft-start applications where reliable voltage blocking and consistent gate triggering are critical to system performance and longevity.

This thyristor module is widely deployed in industrial AC power controllers, soft starters for large induction motors, DC drive converters, resistance welding equipment, and regenerative braking systems. The common-cathode dual configuration simplifies bus bar layouts in three-phase bridge topologies and reduces component count in power conversion stages. Industries including steel processing, paper and pulp manufacturing, mining, marine propulsion, and oil and gas rely on high-voltage SCR modules of this class to manage heavy motor loads and resistive heating elements under continuous duty cycles.

Quick Reference: VVZB135-16NO1-IXYS

Key Features of the VVZB135-16NO1-IXYS:

• 1600V repetitive peak off-state and reverse voltage (VDRM/VRRM) for high-voltage AC and DC bus applications
• 135A RMS on-state current rating with high surge current (ITSM) capability for fault-tolerant designs
• Dual SCR common-cathode configuration simplifies three-phase half-wave and full-wave bridge circuit layouts
• Isolated copper baseplate provides electrical isolation between the power circuit and heatsink, enabling parallel mounting without additional insulators
• Low gate trigger current (IGT) ensures compatibility with standard gate drive and firing board circuitry
• Compact, industry-standard module footprint supports direct form-fit-function replacement in existing drive and converter platforms

The VVZB135-16NO1-IXYS represents a legacy IXYS part number that is increasingly difficult to source through standard distribution channels as production allocations tighten and original inventory depletes. Maintenance teams supporting aging DC drives, phase controllers, and motor soft starters frequently encounter extended lead times of 20 to 52 weeks through conventional suppliers. ATI specializes in exactly these scenarios — stocking hard-to-find, long-lead-time, and obsolete power semiconductors to keep critical industrial equipment running without costly downtime or forced system redesigns.

ATI Accurate Technology is located in Palmetto, Florida and ships same-day on orders received before 5PM EST. Whether you need a single replacement unit or volume quantities for a maintenance stockroom, our team provides fast quotes and competitive pricing. Contact us at 239-734-7566 or sales@igbts.us to check availability, request a volume price break, or get technical assistance matching this module to your application.