2N4991 DIAC / SIDAC, 1 A, TO-92, 3 Pins

The 2N4991 DIAC/SIDAC is a robust, three-terminal, bidirectional trigger diode designed for a wide range of high-voltage switching applications. Encased in a compact TO-92 package, this device offers a 1A current handling capability, making it ideal for triggering thyristors and other semiconductor switches. Its symmetrical switching characteristics ensure reliable performance in AC circuits, providing a consistent breakover voltage in both forward and reverse directions. This makes it a dependable component for applications requiring precise voltage control and surge protection. Explore the possibilities with this versatile and cost-effective solution for your circuit design needs.

Key features of the 2N4991 include its low breakover voltage tolerance, which ensures consistent triggering, and its high surge current capability, providing protection against transient voltage spikes. The TO-92 package allows for easy integration into existing circuit boards, and its three-pin configuration simplifies the wiring process. This DIAC/SIDAC is commonly used in applications such as phase control circuits, lamp dimmers, and motor speed controllers, where precise and reliable switching is essential. Its compact size and robust design make it a preferred choice for both hobbyists and professional engineers.

The 2N4991 excels in applications where precise voltage triggering is crucial. Its ability to quickly switch from a high-impedance off-state to a low-impedance on-state makes it perfect for triggering larger devices like SCRs and triacs. This component is also valuable in crowbar circuits, where it can quickly short-circuit a power supply to protect sensitive electronic components from overvoltage conditions. The device's bidirectional nature allows it to be used in AC circuits without the need for additional rectification, simplifying circuit design and reducing component count. Consider this device for your next project requiring reliable overvoltage protection.

When selecting a DIAC/SIDAC, the 2N4991 stands out due to its combination of performance, reliability, and ease of use. Its TO-92 package is widely recognized and easily handled, making it suitable for both automated assembly and manual prototyping. The device's robust construction ensures it can withstand harsh operating conditions, and its electrical characteristics are well-defined, allowing for accurate circuit simulations and design calculations. Whether you're designing a simple lamp dimmer or a complex power control system, the 2N4991 offers a dependable solution for your switching needs.

Ready to enhance your circuit designs with a reliable and efficient triggering solution? The 2N4991 DIAC/SIDAC is your go-to component for precise voltage control and robust performance. With its compact TO-92 package, 1A current handling, and bidirectional switching capabilities, it's the perfect choice for a wide range of applications. Don't compromise on quality and reliability. Add the 2N4991 to your cart today and experience the difference in your electronic projects. Order now and take your designs to the next level!