The IXYS MCC19-14IO1B is a single-phase thyristor (SCR) module combining proven gate-controlled switching performance in a robust, isolated base package. Rated at 19A average on-state current and a 1400V repetitive peak off-state voltage (VDRM/VRRM), this module delivers the blocking capability and thermal handling required for demanding AC power control tasks. The isolated copper base facilitates direct heatsink mounting without additional insulation hardware, simplifying thermal management and mechanical assembly in high-reliability industrial power systems.

The MCC19-14IO1B is well suited for a broad range of industrial power electronics applications including AC motor soft starters, phase-angle firing controllers, resistance heating regulation, DC drive front-ends, and power supply crowbar circuits. Its voltage rating makes it particularly appropriate for 690VAC three-phase line environments where transient overvoltages demand robust blocking margin. The module format is also common in UPS systems, crane and hoist drives, and industrial welding equipment where controlled rectification or AC switching under load is a continuous operational requirement.

Quick Reference: MCC19-14IO1B

Key Features of the MCC19-14IO1B:

• 1400V VDRM/VRRM repetitive peak off-state voltage provides substantial margin in 480V and 690VAC three-phase systems subject to line transients
• 19A average on-state current (IT(AV)) rated for continuous phase-control duty with appropriate heatsinking
• Isolated copper base construction enables direct heatsink mounting, reducing assembly complexity and improving thermal resistance to case
• Low gate trigger current and voltage requirements for compatibility with standard gate drive and firing card circuits without additional interface components
• Compact industry-standard module footprint allows drop-in replacement of equivalent-footprint thyristor modules from compatible manufacturers
• Designed for phase-control operation, making it optimal for variable power delivery rather than fast-switching converter topologies

With a factory production lead time of 41 weeks, procuring the MCC19-14IO1B through standard distribution channels can mean extended equipment downtime or delayed project schedules. IXYS thyristor modules of this voltage class are increasingly difficult to source as legacy industrial equipment remains in service well beyond original design horizons. Maintenance and procurement teams managing MRO inventory or executing capital repairs cannot afford multi-month lead times for a single switching module. ATI Accurate Technology maintains stock of hard-to-find and long-lead-time IXYS power semiconductors precisely to bridge this gap for time-critical applications.

ATI Accurate Technology is a power semiconductor specialist located in Palmetto, Florida, stocking IGBTs, thyristors, diodes, and rectifier modules including obsolete and long-lead-time parts. Orders received before 5PM EST ship same day. Contact our team for volume pricing, cross-reference support, or urgent replacement needs: call 239-734-7566 or email sales@igbts.us.