SMAJ48A-13-F Circuit Protection

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TVS - Diodes are important circuit components used to help protect electronic equipment and systems from damage caused by electrical disturbances such as electrostatic discharge (ESD), lightning, and other transient voltages. The SMAJ48A-13-F is a two-terminal, bidirectional, unidirectional, unidirectional transient voltage suppressor (TVS) diode device. It is able to protect voltage-sensitive components in the hold-up, clamping and switching applications. This TVS diode has a stand-off voltage (breakdown voltage) of 48V, a low capacitance of only 5pF typically, and a low response time of 1ns.

The SMAJ48A-13-F has many uses, from protecting power supplies from transient surge voltages to protecting computers and other electronic components from ESD. It can also be used to provide clamping protection for integrated circuits (ICs). In addition, TVS diodes are an important component in providing circuit board-level surge protection. The SMAJ48A-13-F can also be used in high-power applications, such as electric vehicles, industrial machinery, renewable energy systems, and medical systems.

The working principle of SMAJ48A-13-F is based on the reverse-biased avalanche breakdown. When an external voltage surpasses the breakdown voltage, the diode enters the avalanche breakdown region. The avalanche current flows through the diode, producing a surge current, and the diode\'s reverse bias gets stronger. When the avalanche current is larger than the reverse breakdown current rated current, the device shuts off, limiting any further current flow. The TVS diode is designed to have a very fast response time, meaning it is able to suppress voltage surges in less than 1ns.

In addition, the SMAJ48A-13-F has an extremely low-capacitance of 5pF, which reduces EMI and ensures that the TVS diode can operate in high-frequency applications. The stand-off voltage of 48V makes it suitable for a variety of high-voltage applications, including automotive, industrial, and telecom. The device also has an operating temperature range from -55°C to 125°C, which makes it highly reliable.

Overall, the SMAJ48A-13-F TVS diode is an ideal component for system protection from ESD, lightning, and other transient voltage surges. It has a low capacitance of 5pF, a fast response time of 1ns, an operating temperature range of -55°C to 125°C, and a stand-off voltage of 48V. These features make the device suitable for a variety of high-voltage applications, such as automotive, industrial, and telecom.

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