P4KE400A R1G Circuit Protection

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TVS - Diodes are a form of over-voltage protection for electronic components. They are designed to protect against transient voltage spikes which can cause permanent circuit damage or system failure. They are commonly used in sensitive electronic circuits, such as those found in computers, telecommunications, and automotive applications. The P4KE400A is a variant of the TVS - Diode family and is specifically designed to protect against transient voltage spikes in higher-power applications.

The P4KE400A is designed to absorb and dissipate power surges of up to 180V in the positive or negative direction. Unlike other TVS - Diodes, the P4KE400A is a reverse breakdown Voltage device, meaning that it will turn on when the voltage across it exceeds its breakdown voltage of 400V. This makes it ideal for applications that require protection against higher-power transient voltage surges.

The P4KE400A is available in a variety of package sizes and applications, including surface mount (SMD) packages with a standard lead-free body, and conventional through-hole packages. It is also available in a variety of R1G, R6G, and R100G power ratings. The higher R rating indicates a higher current rating, which is typically used for applications such as electric motors and power supplies.

The working principle of the P4KE400A is relatively simple. When a transient voltage spike occurs, the P4KE400A will conduct current in the forward direction and absorb the surge energy. This prevents damage to the protected component and reduces the amount of voltage present at the protected device. The absorbed energy is then dissipated as heat, which is efficiently distributed away from the device.

The P4KE400A is an excellent choice for applications where higher currents and voltages may be encountered. Its high-power ratings and small packages make it a great choice for a wide variety of applications, both in the automotive and industrial sectors. Furthermore, its reverse breakdown voltage helps protect against high-power transient voltage surges, which can be potentially damaging.

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