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The Powerex Inc. 2N1911 is a Silicon Controlled Rectifier (SCR) designed for high-power switching applications. It features a TO-209AC or TO-94 package with three pins. The device supports a maximum repetitive peak reverse voltage of 50 V and a maximum DC gate trigger current of 70 mA. It handles a maximum RMS on-state current of 110 A. The component operates within a temperature range from -40 °C to a specified maximum junction temperature, suitable for robust industrial environments.
Verify the specific manufacturer origin, as the 2N1911 designation has been historically produced by multiple semiconductor vendors including Vishay. Confirm that the physical dimensions and pinout match the required TO-209AC or TO-94 footprint. Ensure the electrical ratings meet the circuit's peak voltage and continuous current demands before integration.
Select this component when a rugged, high-current SCR is required for low-voltage, high-amperage applications. Consider the thermal management requirements associated with the 110 A RMS rating. Verify compatibility with the mounting hardware due to the stud-mount nature of the TO-209AC/TO-94 case style.
The 2N1911 belongs to the class of silicon controlled rectifiers used in heavy-duty power electronics. Historically manufactured by various suppliers, it represents a standard form factor for high-current switching. Its design focuses on durability and high surge capacity rather than high-frequency operation.
Cross-reference with other manufacturers offering the 2N1911 specification, such as Vishay. Ensure any substitute maintains the 50 V blocking voltage and 110 A RMS current rating while matching the TO-209AC/TO-94 mechanical outline.