voltage stud mount rectifier diodes offering robust current handling and simple installation for industrial power systems. Key benefits voltage and wide current range: 1200V rating with selectable continuous currents of 25A, 40A, 50A, 70A, and 85A to match different power requirements. Stud positive or stud negative options: HF series provides a stud positive terminal, HFR series provides a stud negative terminal so you can choose the polarity that fits your circuit layout. Strong surge capability: designed to tolerate inrush and short duration overloads, improving reliability during startup and transient events. Durable construction: built from grade semiconductor materials for stable thermal performance, low forward voltage drop, and consistent operation under varying loads. Easy to install and maintain: standard stud mount simplifies mechanical and electrical connections for fast assembly and service. Specifications and models available Product type: Rectifier diode, stud mount Voltage rating: 1200V Current options: 25A, 40A, 50A, 70A, 85A Models available: 25HF 120, 25HFR 120, 40HF 120, 40HFR 120, 50HF 120, 50HFR 120, 70HF 120, 70HFR 120, 85HF 120, 85HFR 120 Polarity detail: HF series (positive stud): 25HF 120, 40HF 120, 50HF 120, 70HF 120, 85HF 120 each rated 1200V at respective currents HFR series (negative stud): 25HFR 120, 40HFR 120, 50HFR 120, 70HFR 120, 85HFR 120 each rated 1200V at respective currents Size: as shown in the product image Package included: 1 x stud diode rectifier Typical applications and use scenarios Battery charging systems: use as part of the rectifier stage in industrial or backup battery chargers where voltage and surge tolerance are required. Power converters and supplies: suitable for bridge or discrete rectifier implementations in DC power supplies and converter modules for machine tools and automation. Welding machines and motor controls: rugged enough for the rectifier function in welding power supplies and motor drive circuits that experience frequent current spikes. Why choose this rectifier Flexible polarity and current choices let you match the diode to system topology and load. Stud mounting provides a reliable mechanical connection and straightforward heat sinking options. Designed for realworld industrial environments where surge currents and temperature variation occur, while remaining simple to install and service. Package note Each includes one stud diode rectifier as specified by model.