SMA5J28C-E3/5A

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The SMA5J28C-E3/5A is a transient voltage suppressor (TVS) diode used to protect sensitive electronics from damaging high voltage. It is designed to be used in automotive applications as an overvoltage protection device to guard against voltage and electromagnetic interference (EMI) that can damage integrated circuits. It can also be used to prevent transient voltage from inducing current into unprotected circuits.

The SMA5J28C-E3/5A TVS diode contains a Zener diode with a Zener breakdown of 7.5 V. This makes it suitable for applications requiring voltage protection up to 15 volts. It also features an ultra-low capacitance of 0.2pF, making it suitable for use in high-frequency applications while maintaining signal integrity. The diode also has a low walking voltage threshold of 2.5V and a low additional voltage ( surge) absorption of 9 V.

The SMA5J28C-E3/5A’s working principle is based on an avalanche breakdown. This happens when an electric current passes through the diode\'s junction and the electric current increases. At a certain point, the voltage across the junction increases until it reaches a critical value. This causes an avalanche of electrons and electron holes to be created in the junction, which in turn allows the current to flow freely.

When the diode is triggered, the avalanche current reduces significantly. This reduces the voltage applied to the circuit. The current absorption of the SMA5J28C-E3/5A is minimal and affects the performance of the application minimally. It prevents the destruction of sensitive circuits, allowing them to continue operating as normal.

The SMA5J28C-E3/5A can be used in applications requiring surge current protection, such as automotive ECUs, radios and amplifiers. It can also be used in automotive and consumer electronics, medical and telecommunications, and in industrial applications. The diode is highly reliable and its low profile design makes it an ideal solution for applications with space constraints.

The SMA5J28C-E3/5A is a reliable, high-performance TVS diode designed to provide protection from overvoltage and EMI. Its ultra-low capacitance and fast response time make it suitable for a wide range of applications in the automotive, consumer electronics, medical and telecommunications, and industrial markets. It is an effective overvoltage protection solution for sensitive electronic components and for protecting against transient voltages.

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