SMBJ8.5A

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TVS (Transient Voltage Suppression) diodes are a type of semiconductor device that is designed to protect computer hardware components against overvoltage conditions such as induced voltage spikes, electrostatic discharge, power supply transients and other electrical disturbances. SMBJ8.5A is a type of TVS diode specifically designed to provide protection against 8.5A peak current and 10V reverse voltage. It is commonly used in automotive, industrial and other applications where reliable overvoltage protection of sensitive components is necessary.

The SMBJ8.5A is a unidirectional device, meaning it can only be used in the forward direction for current flow. It is generally constructed from silicon (Si) material and can be surface-mounted onto a printed circuit board (PCB) for use in a variety of applications. The device is a polarized type, meaning the normal current flow must be in the anode to cathode direction. It has a maximum forward current rating of 8.5A, which is the maximum peak current it can handle in a single direction. The reverse voltage rating of 10V means that it can sustain reverse voltages up to 10V without experiencing any damage.

The SMBJ8.5A TVS diode has a variety of applications where it is used to provide overvoltage protection to sensitive components. In the automotive industry, it is widely used to protect against short-duration overloads such as transients and spikes as well as more prolonged overloads, such as those caused by ground faults and reverse-polarity connections. In the industrial field, it is often used to protect electronic control systems from unexpected voltage and current transients that occur due to lightning strikes. It can also be used to protect against overvoltage conditions in solar power systems and audio systems.

The working principle of the SMBJ8.5A is based on the fact that it utilizes a special semiconductive material that can absorb energy when a transient event occurs. In the event of a transient, the voltage drop across the diode increases significantly due to the sudden increase in current. This causes the device to act as a conductor, allowing the energy to be dissipated before it has a chance to damage the components. Once the voltage has been dissipated, the material reverts to its insulative state, blocking any further current flow.

In summary, the SMBJ8.5A is a type of TVS diode specifically designed for protecting electrical components from overvoltage conditions caused by transient events and power supply transients. It is commonly used in automotive, industrial and other applications where reliable overvoltage protection of sensitive components is necessary. It has a maximum peak current rating of 8.5A, a reverse voltage rating of 10V, and utilizes a special semiconductive material to absorb energy when a transient event occurs, allowing the energy to be dissipated before it has a chance to damage the components.

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