5KP9.0C-B Circuit Protection

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TVS - Diodes

TVS diodes, otherwise known as transient voltage suppressors, are specialty diodes that are designed to protect against overvoltages. Generally speaking, these components are placed across a power or signal input line to absorb or quickly dissipate high-level surges that result from forms of transient overvoltage, such as lightning strikes. An important consideration in their design is that they are engineered to limit the increase in voltage across the input line so that it does not exceed the absolute highest voltage allowed for the device it is protecting. They are also designed to reduce the chances of component failure due to the surge and minimize the chances of a damaged circuit.

The 5KP90C-B is one such diode that is used for protection from these transient effects. It is a unidirectional, non-polar device, which means it can be connected in either direction across an input and still provide protection so long as the voltage and power levels are properly accounted for. The diode has a peak power rating of 5000W and a breakdown voltage rating of 90V. This means that it is engineered to absorb overvoltage transients up to a maximum of 90V at the input. Exceeding this voltage can cause permanent damage to the diode.

The working principle of this diode is the same as any other diode. It is a two-terminal device that only conducts current from one direction. Thus, when a voltage is applied in the opposite direction, current does not flow through the diode and it provides a high impedance path, working as an open circuit. With the 5KP90C-B, this high-impedance state is maintained until the voltage across the diode exceeds the specified breakdown voltage, which is 90V. At that point, the diode switches to a low-impedance state and begins to conduct current from the opposite direction, quickly dissipating the surge. This provides protection to the device it is connected to without having to handle the full voltage of the transient.

The 5KP90C-B is commonly used in applications where protection from lightning strikes and other transient overvoltage sources is required. These may include consumer electronics, industrial electronics, solar installations, and automotive systems, among others. It is important to note that the voltage that is used to power the device must remain below the specified breakdown voltage for the diode to work properly and ensure that the proper protection is provided. In addition, any electrical connection should be rated to at least the maximum power rating of the diode to ensure that it can handle the transient energy.

In conclusion, the 5KP90C-B is a type of TVS diode that is commonly used to protect against transient overvoltages. It has a peak power rating of 5000W and a breakdown voltage rating of 90V, meaning it is designed to absorb transients up to that voltage and provide effective protection. The diode works by maintaining a high impedance state until the voltage across it exceeds the specified breakdown voltage, at which point it switches to a low-impedance state and quickly dissipates the surge. The diode is commonly used in applications such as consumer electronics, industrial electronics, solar installations, and automotive systems.

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