Vishay VS-85HFR120 Anode Case Mount Diode Rectifier

Description

The Vishay VS-85HFR120 Anode-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, UPS systems, motor drives, electroplating equipment, and rectifier assemblies requiring an anode-to-case stud-mounted rectifier diode. Maintenance technicians and power electronics engineers use this diode for power supply repairs, rectifier replacement, converter retrofits, and industrial equipment maintenance.

Applications

The Vishay VS-85HFR120 is a standard recovery silicon rectifier designed for high-current industrial power applications. Its anode-to-case configuration and DO-203AB (DO-5) stud package provide excellent thermal dissipation and reliable chassis mounting for high-power rectifier circuits. The diode is widely used in AC-to-DC power supplies, battery charging systems, industrial welding machines, DC motor controls, UPS equipment, renewable energy converters, and heavy-duty industrial rectifier assemblies.

Technical Specifications

• Manufacturer: Vishay General Semiconductor
• Manufacturer Part Number (MPN): VS-85HFR120 (85HFR120)
• Product Type: Stud Mount Rectifier Diode
• Diode Configuration: Single Rectifier
• Polarity: Anode-to-Case
• Average Forward Current (IF(AV)): 85 A
• Repetitive Peak Reverse Voltage (VRRM): 1200 V
• Maximum Forward Voltage (VF): 1.2 V @ 267 A
• Peak Forward Surge Current (IFSM): Up to 1450 A
• Reverse Leakage Current: 9 mA @ 1200 V
• Recovery Type: Standard Recovery
• Package: DO-203AB (DO-5) Stud Mount
• Mounting Type: Chassis / Stud Mount
• Stud Thread: 1/4"-28 UNF-2A
• Operating Junction Temperature: -65°C to +180°C
• Typical Applications: Industrial power supplies, battery chargers, welding equipment, motor drives, and power conversion systems.

Common Replacements

• Vishay VS-85HFR140
• Vishay VS-85HFR160
• Vishay VS-86HFR120