SMA5J28HE3/5A

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Transient Voltage Suppression Diodes, usually known as TVS Diodes play an integral role in todays’ energy-efficient circuit designs where low static power loss is a critical goal. In addition to state-of-the-art performance, these devices require as little real estate as possible. The SMA5J28HE3/5A from Seoul Semiconductor Corporation is a TVS diode specifically designed for this purpose.

The SMA5J28HE3/5A is designed for a variety of applications including but not limited to consumer products, automotive, industrial and medical applications. It offers excellent EMI/RFI suppression, high surge voltage handling capabilities, and a low leakage current. Furthermore, it provides superior thermal resistance, which allows for an increase in maximum operating power.

In terms of construction, this component is made up of two distinct materials—semiconductor and glass. Its semiconductor layer is composed of a high-resistivity gallium arsenide (GaAs) substrate and several layers of polysilicon. The glass layer consists of an electrode-like material called alumina-doped silicate glass (ADSG). The two materials are combined via a special fusion process that creates an extremely strong and reliable connection.

As for the working principle of the SMA5J28HE3/5A, it is fairly simple. It operates like a regular diode with a direction of current flow. When the voltage is below its breakdown voltage, it is in “off” state and does not allow any current to flow. However, when the voltage exceeds the breakdown voltage, the diode is said to be “on” and it allows current to pass through it. As the current passes through, it is converted into heat and is then dissipated as heat to the environment. This process creates a protection against the overvoltage.

In terms of size, the SMA5J28HE3/5A is small enough to fit in tight spaces, making it particularly useful for applications that require precision and space-saving capabilities. Its reduced size enables more area for other components and allowed designers to optimize energy-efficient designs. It is a perfect solution for consumer electronics, automotive applications, industrial machines and medical devices.

To sum up, the SMA5J28HE3/5A from Seoul Semiconductor Corporation is a Reliable, efficient and space-saving Transient Voltage Suppression diode. It is specifically designed for applications in which low static power loss is essential. Its small size allows for an increase in maximum operating power, while its solid construction and working principle make it the perfect choice for consumer, automotive, industrial and medical applications.

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