Vishay VS-85HF120 Cathode Case Mount Diode Rectifier

Description

The Vishay VS-85HF120 Cathode-to-Case Mount Diode Rectifier is used in high-current power rectification and DC power conversion systems. Commonly installed in industrial power supplies, battery chargers, welding equipment, motor drives, UPS systems, electroplating equipment, and rectifier assemblies requiring a high-current stud-mounted diode. Maintenance technicians and power electronics engineers use this rectifier diode for equipment repair, power supply replacement, converter upgrades, and industrial rectifier maintenance.

Applications

The Vishay VS-85HF120 is a standard recovery stud-mounted silicon rectifier designed for high-current rectification in industrial and commercial power conversion equipment. Its cathode-to-case configuration and DO-203AB (DO-5) stud package provide excellent thermal performance for chassis mounting. The diode is suitable for AC-to-DC rectifiers, battery charging systems, DC motor controls, industrial welding equipment, power distribution systems, and renewable energy power conversion applications.

Technical Specifications

• Manufacturer: Vishay General Semiconductor
• Manufacturer Part Number (MPN): VS-85HF120 (85HF120)
• Product Type: Stud Mount Rectifier Diode
• Diode Configuration: Single Rectifier
• Polarity: Cathode-to-Case
• Average Forward Current (IF(AV)): 85 A
• Repetitive Peak Reverse Voltage (VRRM): 1200 V
• Maximum Forward Voltage: 1.2 V
• Peak Forward Surge Current (IFSM): 1700 A
• Reverse Leakage Current: 9 mA @ Rated Voltage
• Package Type: DO-203AB (DO-5) Stud Mount
• Mounting Style: Chassis / Stud Mount
• Operating Junction Temperature: -65°C to +180°C
• Recovery Type: Standard Recovery Silicon Rectifier
• Typical Applications: Power Supplies, Battery Chargers, Industrial Rectifiers, DC Drives, Welding Equipment, and Power Conversion Systems.

Common Replacements

• Vishay VS-85HF140
• Vishay VS-85HF160
• Vishay VS-86HF120