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Vishay VS85HF120 Surge Diode

This high surge current capability diode is designed for industrial applications such as battery chargers, converters, machine tool controls, and welding. It features a stud mount with the cathode connected to the stud, ensuring reliable installation and performance. Constructed to handle voltages up to 400 V and continuous surge currents of 85 A, it provides excellent thermal management with a maximum junction temperature of 180°C. Its compact DO-203AB (DO-5) case makes it suitable for demanding power supply and industrial automation environments, offering long-term durability and efficiency.

Authorized Distributors
Source:Newark
Part No:VS-85HF120
Stock:59
Inv Date:06-09-2026
Price: Unit price: $18.21
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Source:DigiKey
Part No:VS-85HF120
Stock:0
Inv Date:06-09-2026
Price: Unit price: $17.68
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Part No:VS-85HF120
Stock:905
Inv Date:06-10-2026
Price: Unit price: $17.68
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Part No:VS-85HF120
Stock:34
Inv Date:06-09-2026
Price: Unit price: $19.83
Buy/RFQ:
Part No:VS-85HF120
Stock:0
Inv Date:06-09-2026
Price: Unit price: $6.67
Buy/RFQ:

Vishay VS85HF120 Surge Diode Specifications:

  • Package: DO-203AB (DO-5)
  • Maximum Surge Current: 85 A
  • Peak Repetitive Voltage: 400 V
  • Maximum Repetitive Peak Reverse Voltage: 500 V
  • Maximum RMS Forward Current: 133 A
  • Maximum Average Forward Current: 85 A
  • Maximum Junction Temperature: 180°C
  • Thermal Resistance, Junction to Case: 0.35 K/W
  • Maximum Thermal Resistance, Case to Heat Sink: 0.25 K/W
  • Case Dimensions: 15.1 mm x 6.1 mm x 11.4 mm
  • Mounting Torque (Lubricated): 3.2 N-m
  • Forward Voltage Drop: 1.2 V at 267 A, 25°C
  • Peak Surge Current (Non-Repetitive): 1800 A
  • Operating Temperature Range: -65°C to 180°C

Buy the Buy Vishay Diode Part Number VS85HF120 Online

Order Vishay surge diodes with part number VS85HF120 online today for robust performance in high power applications. Perfect for chargers, converters, and welding equipment, this stud-mount diode offers high surge current capacity of 85 A, voltage up to 400 V, and excellent thermal management. Its compact DO-203AB case ensures durability and ease of installation in industrial environments. Make your purchase now to benefit from reliable, efficient, and industrial-grade diodes with long-term performance designed for demanding power systems and automation needs.

Get Vishay diodes with part number VS85HF120 today—designed for high surge currents, industrial reliability, and long-lasting power performance.

Frequently Asked Questions

Where can I buy Vishay VS85HF120?

You can click on the BUY or RFQ button to purchase VS85HF120 from an authorized Vishay distributor.

How do I troubleshoot issues or seek technical support for part VS85HF120?

You can download the VS85HF120 datasheet or visit the Vishay website for support.

Who is the manufacturer of VS85HF120?

Vishay

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