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The Lincoln Electric M9661-39 (also cataloged as 9SM9661-39) is a silicon rectifier diode designed for secondary rectification in welding power sources. It functions as a positive-polarity component within a transformer rectifier circuit to convert alternating current to direct current for arc welding processes.
Features
Hermetically sealed stud package for protection against environmental contaminants
High thermal stability for welding-specific duty cycles
Stud-mount design for mechanical fastening and electrical conductivity
Direct OEM replacement part for transformer rectifier repair
Heavy-duty silicon semiconductor construction
Specifications
Manufacturer: Lincoln Electric
Part Number: M9661-39
Alternate Part Number: 9SM9661-39
Component Type: Silicon Rectifier Diode
Current Rating: 85 Amperes
Polarity: Positive
Package Type: Hermetically sealed stud package
Duty Cycle Rating: 20% - 30%
Rectification Type: Secondary rectification
Applications
Lincoln Electric AC/DC 225/125 arc welders
Secondary rectification in welding machine transformer rectifiers
Repair and maintenance of industrial arc welding power supplies
