1SMB5920B-13

The 1SMB5920B-13 is an ideal silicon Zener diode which is primarily used of voltage regulation, clipping, and clamping, as well as many other uses. Used mostly in industrial and automotive applications, these devices are built for rugged reliability and strong performance with high surge current ratings, long operating lifetimes, and high power dissipation ratings. With its external condition compatibility, the 1SMB5920B-13 provides an ideal solution for in-system voltage regulation.

The working principle of the 1SMB5920B-13 revolves around the unique properties of a Zener diode. This type of diode is specially designed to have a heavily doped p-side and a lightly doped n-side, and it behaves differently during a forward bias than other types of diode. The n-side of the diode is between electrical connections, and when a voltage potential is applied, a high electric field is produced, resulting in increased current across the junction. This current then drifts electrons through the p-side of the diode and into the n-side, creating a depletion region and an electric field of a negative charge. This electric field pushes the electrons back into the p-side, and when the voltage across the junction exceeds a certain level, called the "Zener voltage," the electrons will be pushed back into the n-side, allowing for current to pass through the diode in the reverse direction.

The primary application of the 1SMB5920B-13 are in industrial and automotive applications, as the device is specifically designed to supply a stable Zener voltage when placed in series with a power supply. This voltage can be used as a reference voltage or for reset/disable circuits, and it can also be used for voltage stabilizing, overvoltage protection, and ESD protection. It can be used as a jumper to a ground (GND) node to set a voltage reference, and is also often used as an input pin of an IC, as well as a gate driving voltage input. The 1SMB5920B-13 is also prone to be used in a shunt configuration, which is used to provide over-voltage protection and reduce voltage transients.

The 1SMB5920B-13 is especially suited for use in automotive electrical systems and other high-temperature environments. It has a wide operating temperature range of -65°C to +175°C, a high surge current rating of 115 A (10 ms) and 89 A (100 ms), a long life expectancy of 30,000 hours with reverse leakage testing, and a high power dissipation rating of 2 W. The external condition compatibility also allows for ease of installation and operation, preventing any undesirable perturbations from temperature variations and other environmental factors.

Overall, the 1SMB5920B-13 is a versatile and reliable Zener diode for a wide range of industrial and automotive applications. With its high surge current ratings, long life expectancy, and high power dissipation ratings, it is an ideal solution for voltage regulation, voltage stabilizing, overvoltage protection, reset/disable circuits, and ESD protection.