2N4991 Datasheet | NTE Electronics

2N4991 Integrated Circuit Silicon Bilateral Switch (SBS) TO- 92/TO- 98 Type Package Description: The 2N4991 is a silicon planer, monolithic integrated circuit having the electrical characteristics of a bilateral thyristor. This device is designed to switch at 8 volts with a 0.02%/C temperature coefficient and excellently matched characteristics in both directions. A gate lead is provided to eliminate rate effect and to obtain triggering at lower voltages. The 2N4991 is specifically designed and characterized for applications where stability of switching voltage over a wide temperature range and well matched bilateral characteristics are an asset. It is ideally suited for half wave and full...