The SD300C04C is a high-performance SCR (Silicon Controlled Rectifier) thyristor module manufactured by International Rectifier (IR), now part of Infineon Technologies. Rated for 300 amperes of average on-state current and a 400V repetitive peak off-state voltage (VDRM/VRRM), this thyristor module is engineered to handle demanding switching and phase-control requirements in industrial and commercial power systems. Its rugged construction and thermally efficient package design make it well-suited for continuous high-power operation across a wide range of environments.

The SD300C04C is widely deployed in AC motor drives, soft starters, industrial heating systems, power regulators, welding equipment, and DC power supplies where reliable phase control and precise current management are critical. It is also used in UPS systems, battery chargers, and large-scale rectification circuits where long service life and thermal stability are essential performance factors.

Quick Reference: SD300C04C

Key Features:

• 300A average on-state current rating for high-power industrial applications
• 400V peak repetitive off-state voltage (VDRM/VRRM) for reliable blocking performance
• Low on-state voltage drop minimizing conduction losses and improving system efficiency
• High surge current capability suitable for fault-tolerant power circuit designs
• Thermally optimized module package for enhanced heat transfer to heatsink
• Manufactured by International Rectifier, a globally trusted power semiconductor brand

The SD300C04C is considered a specialty or hard-to-find component, often associated with long lead times through standard distribution channels. ATI Accurate Technology maintains inventory of difficult-to-source SCR and thyristor modules like the SD300C04C to support field service, MRO procurement, OEM production continuity, and emergency replacement scenarios. Whether you need a single unit or a larger quantity for a production run or spares inventory, ATI can fulfill your order quickly and reliably.

ATI Accurate Technology is a trusted power semiconductor distributor based in Palmetto, Florida, specializing in IGBTs, thyristors, SCRs, diodes, and rectifier modules — including obsolete and long-lead-time parts. Call us at 239-734-7566, email sales@igbts.us, or visit igbts.us to place your order. Orders received before 5PM EST qualify for same-day shipping.