MPLAD30KP78AE3/TR Circuit Protection

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MPLAD30KP78AE3/TR: TVS - Diodes Application Field and Working Principle

TVS - Diodes (Transient Voltage Suppression diode) is a voltage controlled diode that is fabricated in a form similar to a Zener diode. It is a non-linear device that is designed to shunt away transient voltages, as opposed to the Zener diode that operates as a form of voltage regulator. By clamping the transient voltages, TVS diodes protect electrical components from damage due to extreme voltages.

The MPLAD30KP78AE3/TR is an example of one kind of TVS diodes. It is a bi-directional device with a bidirectional peak power capability of 3.2 kW at 8/20 μs. It is designed to clamp transient voltages effectively over a wide range of frequencies, up to 10 GHz. It has a leakage current of 5.0 μA and a clamping voltage of 14 V.

The MPLAD30KP78AE3/TR is primarily designed for the protection of IC pins and circuits against overvoltage and ESD (electrostatic discharge) events. It is often used in applications such as data transmission lines, communication circuits, computer peripheral controllers, and other electronic control circuits. The device can be used to provide protection against any external electrical overvoltage events such as voltage spikes, surges, ESD, or lightning.

The MPLAD30KP78AE3/TR is designed with a breakdown voltage (V_br) and current (I_br) rating that is significantly higher than the supply voltages encountered in normal operating conditions. The device clamps the transient voltage to the desired level without consuming the power, and without creating sparks. This is referred to as the transient suppression or reverse breakdown. This mode of operation is applicable for transient voltages that range from 0 to V_br. When the transient voltage exceeds V_br, the device goes into an avalanche breakdown mode.

In order to ensure the proper functioning of TVS diodes, it is advisable to mount them directly on the integrated circuit. Mounting the diode directly on the IC helps provide efficient transient voltage protection by minimizing stray inductance in the circuit. It is also important to select a diode capable of handling the frequencies in the environment in which the IC is operating.

The MPLAD30KP78AE3/TR is a reliable and effective transient voltage suppressor diode. It is capable of providing much needed protection to sensitive integrated circuits and other electronic components in situations where voltages may exceed the expected range. When correctly installed on the IC, it can protect the IC from ESD and other transient voltage events.

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