P4KE400A-B

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TVS Diodes are types of surge protective devices (SPDs) designed to protect electrical circuits from transient voltage that may damages circuits and equipment. The P4KE400A-B is one of the leading TVS Diodes, with features such as low capacitance and fast response time. This article will discuss the application fields and working principles of the P4KE400A-B TVS Diode.

The P4KE400A-B is ideal for a wide range of applications, including communication systems, consumer electronics, industrial control systems, automotive systems, computers, and medical equipment. This device is capable of suppressing short-duration voltage spikes up to 400W. It also provides low capacitance of 80pF and fast response time of 5ns, withstanding up to ± 4kV surge without clamping. It can handle voltages up to 6kV in normal mode and up to 1kV to 8kV in reverse mode.

In order to understand how this device works, one needs to understand the principles of a TVS Diode. Basically, it consists of a diode and a threshold voltage which is set through an external resistor. When the voltage across the diode reaches the threshold voltage, the diode will conduct. This will provide a current path for the excess voltage leading it away from the equipment.

The P4KE400A-B features a low capacitance, and this will help it to respond to the transient voltage faster. This is because the low capacitance reduces the amount of charge that needs to be transferred in order to turn on the diode. The faster response time of the diode results in the less amount of the energy passing through the device, thus ensuring minimal voltage stress on the equipment.

The structure of the P4KE400A-B consists of a junction diode with an RTC resistor that will control the clamp level of the diode. The RTC resistor will limit the amount of current that can pass through the diode before it turns on. This will ensure that the voltage across the diode will not exceed the threshold voltage before it is triggered.

The P4KE400A-B also features a fast response time, which is important for protecting the device from high frequencies transients. The fast response time will ensure that the device can quickly turn on the diode, and reduce the amount of energy that passes through the diode before it is triggered. This will ensure that the equipment is protected from transient events.

The P4KE400A-B also boasts a low capacitance, which will help it to respond to transient events faster. This low capacitance ensures that the device is able to respond to events faster as it can transfer charges faster from one transistor or diode and into another. This feature ensures that the voltage that reaches the equipment is minimized, allowing for greater protection of the device.

TVS Diodes play an important role in safeguarding delicate electronic equipment from transient voltage events. The P4KE400A-B is a leading device of its kind, boasting low capacitance, fast response time, and a wide range of applications. It is a reliable and efficient protector for a wide range of applications, and its features make it a superior TVS Diode.

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