2N4991Manufacturer: GEN Silicon bilateral switch (SBS) in package TO-92  | |||
| Partnumber | Manufacturer | Quantity | Availability | 
|---|---|---|---|
| 2N4991 | GEN | 2030 | In Stock | 
        Description and Introduction
           Silicon bilateral switch (SBS) in package TO-92  The 2N4991 is a silicon-controlled switch (SCS) manufactured by General Electric (GEN). It is a four-layer PNPN semiconductor device that functions as a low-power thyristor. The 2N4991 is designed for applications requiring precise control of small currents, such as timing circuits, oscillators, and pulse generators. Key specifications include: 
      - **Voltage Ratings:** - **Current Ratings:** - **Power Dissipation:** - **Temperature Range:** - **Switching Characteristics:** The 2N4991 is housed in a TO-18 metal can package, which provides good thermal performance and mechanical durability. It is suitable for use in environments where reliability and precision are critical.  | 
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