The SEMIKRON SKD83/16 is a 3-phase diode bridge rectifier module rated for 83A average output current and a repetitive peak reverse voltage of 1600V. Housed in SEMIKRON's industry-standard SKD package with an isolated copper base, this module integrates six diodes in a full-wave bridge configuration, delivering clean DC bus voltage from 3-phase AC input. It is engineered for continuous industrial duty with low forward voltage drop, minimizing conduction losses and reducing heatsink requirements in thermally constrained enclosures.

The SKD83/16 is widely deployed in variable frequency drives (VFDs), servo drive front-ends, industrial UPS systems, welding power supplies, and DC motor drive input stages. Its 1600V voltage rating provides the derating margin required for 690V AC line applications, making it a preferred choice for European and heavy industrial installations. The module is also used in crane and hoist drives, elevator controls, and high-power rectifier assemblies where reliability and long service life under cyclic loading are critical design requirements.

Quick Reference: SKD83/16

Key Features of the SKD83/16:

• 83A average forward current (IFAV) with 1600V repetitive peak reverse voltage (VRRM) for robust margin on 690V AC systems
• Full 3-phase bridge topology (6-pulse rectification) in a single compact module, reducing assembly complexity and board real estate
• Isolated copper base plate for direct heatsink mounting, enabling low thermal resistance and simplified system-level thermal design
• Low forward voltage drop (VF) across all six diodes reduces conduction losses and overall power dissipation at rated current
• SEMIKRON SKD standard footprint ensures form-fit-function compatibility with existing drive designs and legacy PCB layouts
• Designed and qualified for continuous industrial duty cycles including cyclic overload conditions common in motor drive and traction applications

The SKD83/16 carries a factory lead time of approximately 35 weeks for new production, which is typical for high-voltage SEMIKRON bridge modules in the current supply environment. For OEMs managing build schedules, maintenance teams supporting critical installed equipment, or procurement teams sourcing for safety stock, this lead time demands proactive planning. ATI specializes in precisely these situations—hard-to-find, long-lead-time, and obsolete SEMIKRON power modules—and can advise on availability, cross-references, and stocking strategies to keep your production and repair pipelines moving.

ATI Accurate Technology is a power semiconductor distributor located in Palmetto, Florida, stocking IGBTs, diodes, thyristors, and rectifier modules including long-lead-time SEMIKRON parts like the SKD83/16. Orders placed before 5PM EST ship same day. Volume pricing is available for OEM and MRO quantities. Call 239-734-7566 or email sales@igbts.us to check current availability and discuss your requirements.