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2N4991 from GEN

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2N4991

Manufacturer: 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:**
  - Peak Off-State Voltage (V_D): 100V
  - Peak Gate Reverse Voltage (V_RGM): 5V

- **Current Ratings:**
  - Peak Gate Current (I_GM): 200mA
  - Peak Anode Current (I_T): 200mA

- **Power Dissipation:**
  - Total Device Dissipation (P_D): 500mW

- **Temperature Range:**
  - Operating Junction Temperature (T_J): -65°C to +150°C

- **Switching Characteristics:**
  - Turn-On Time (t_on): Typically 1µs
  - Turn-Off Time (t_off): Typically 10µs

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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