SMBT1587T1G

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The SMBT1587T1G is a single-phase, silicon, avalanche-capable, common-cathode, rectifier diode. This diode is based on advanced processing technologies that enable an effective clip-on, low-power, long lifetime option. It is suitable for a wide range of applications that require the use of an avalanche-capable rectifier diode.

The SMBT1587T1G is ideal for use in power supply rectification as well as in automotive, telecom and consumer electronics applications. With its low forward voltage drop, high surge current capability, and reverse leakage current of less than 10uA. The SMBT1587T1G is designed for use in high frequency power supplies.

The operating principle of the SMBT1587T1G is based on the effects of heat generated by the diode junction. When the diode is connected in forward bias, the voltage drop across the diode is relatively low. As current is increased, the forward voltage drop increases and the heat generated raises the temperature of the junction. This increase in temperature results in a rapid increase in forward voltage drop known as “avalanche” breakdown. Once this occurs, the avalanche occurs very quickly, producing a very high surge current.

The remarkably low forward voltage of the SMBT1587T1G, combined with its avalanche capability, makes it ideal for applications such as AC/DC and DC/DC converters, stepper motor drivers, solar inverters, battery charging circuits, and automotive applications such as lighting systems and engine starters.

The SMBT1587T1G is also a great option for AC/DC power supplies due to its low forward voltage drop, low reverse leakage current, and high surge current capability. Specifically, when used in a switching power supply, the SMBT1587T1G reduces the power loss in the primary stage, as compared to a standard rectifier diode. For example, in a 100W supply, the power loss is reduced from 45W to 8W, resulting in an 87% reduction in power loss.

The SMBT1587T1G is designed for the most demanding applications, providing reliable protection and improved efficiency, reducing power loss and extending the life of the system. It is suitable for use in high-frequency, high-temperature and high-voltage environments, and helps ensure better quality and stability of the system.

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