3KP70

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TVS (Transient Voltage Suppressor) diodes are an important component in the protection against transients and over-voltages. They are semiconductor components that can quickly absorb a large amount of energy and protect the connected device or circuit against high voltages. 3KP70 is a type of TVS diode that is used for protection against destructive transients caused by lightning and other high energy sources. This article will discuss the application fields and working principles of 3KP70 TVS diode.

The application field of 3KP70 is mainly for external interferences like short power cycles, electrical power surges, lightning, and EMI/RFI interference. It is used to prevent over-voltage in PCB, DC/DC converter, and I/O controller. It has been designed with an active diode element that can effectively suppress over-voltage events within 7 nanoseconds, and its integrated ESD (Electrostatic Discharge) protection for its pin networks protect it from ESD and EFT (Electrical Fast Transient) attacks. 3KP70 ensures a quick response, good temperature stability and high reliability in extreme conditions.

The working principle of 3KP70 is based on the well-known thyristor series. A thyristor is designed to conduct current in one direction and acts as a switch for AC or DC currents. The voltage at which the switch closes is called the breakover voltage. When a transient voltage passes through it, the difference between the break-over voltage and the transient voltage determines the amount of current that the thyristor will start to conduct. This thyristor element functions as the voltage regulating device of the 3KP70. The 3KP70 diode then ensures that the thyristor element can conduct the current and provide protection without any damage to the protected device.

The 3KP70 TVS diode also has a built-in internal protective circuit. This circuit monitors the voltage at its junction and detects any over-voltage events. When the voltage reaches a predetermined value, the protective circuit will activate and reduce the voltage at the junction. This reduces the voltage at the junction and provides protection to the connected device or circuit.}

The 3KP70 diode is highly reliable, durable, and offers excellent protection against transient events and surge voltages. It also provides the advantage of ESD and EFT protection. This makes the 3KP70 suitable for a wide range of applications including automotive, consumer, and industrial equipment, as well as data centers. This device is also cost-effective and has a low power consumption, making it a popular choice for o-ver-voltage protection.

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