Semikron SKR 240/18 Rectifier Diode, 240A 1800V, Stud Mount, PN: SKN240/18 - Pack of 3

Semikron SKR 240/18 High-Power Rectifier Diode (240A, 1800V) - Reverse Polarity

The Semikron SKR 240/18 is a high-power standard rectifier diode featuring a reverse polarity configuration (cathode to stud). It is engineered for heavy-duty industrial power conversion, often paired with its standard polarity counterpart (SKN series) to construct complete single-phase or three-phase rectifier bridges. Housed in a robust, hermetically sealed metal stud case, this component delivers a reliable average forward current of 240A and a very high repetitive peak reverse voltage of 1800V, ensuring exceptional performance and mechanical stability in harsh environments.

Manufacturer Information:

• Manufacturer: Semikron
• Part Number: SKR 240/18
• Product Type: Rectifier Diode (Standard Recovery)
• Average Forward Current (IFAV): 240 Amps (A)
• Repetitive Peak Reverse Voltage (VRRM): 1800 Volts (V)
• Package / Case: Stud Mount, Metal Case with Glass Insulator
• Termination Type: Screw Terminal (Stud)
• Thread Size: M16 x 1.5
• Polarity: Reverse (Stud is the Cathode)
• Peak Surge Forward Current (IFSM): 5500 A (for 10 ms, sine 50 Hz)
• Maximum Junction Temperature (Tj max): 180 °C

Key Features:

• Reverse Polarity Configuration: With the cathode connected to the stud, this diode is essential for building flexible and efficient bridge rectifier circuits on common heatsinks.
• High Current Capability: Rated for a continuous average forward current of 240A, ideal for demanding industrial loads.
• Very High Reverse Voltage Rating: 1800V VRRM provides maximum safety margin and reliability for operation in high-voltage industrial mains (e.g., 690V AC lines).
• Robust Stud Mount Package: The industry-standard stud package ensures excellent heat dissipation into a heatsink and provides a secure, vibration-resistant mechanical mounting.
• Exceptional Surge Current Handling: Capable of withstanding a high surge current up to 5500A, enhancing system reliability during overload or inrush events.
• Hermetically Sealed Construction: The glass-metal seal protects the semiconductor junction from environmental contaminants, ensuring long operational life and stability.