MXP6KE91A Circuit Protection

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TVS diodes are various types of transil diodes which combine electrical components and other protective features to provide high-performance surge protection. The MXP6KE91A is a board-level TVS diode and designed to provide surge protection from lightning transients. The device is capable of providing protection from lightning surges up to 30A (8/20 μs pulse). It also provides adequate Negative Transient Voltage (NTV) protection up to 8A (8/20 μs pulse).

The MXP6KE91A is built for all current protective applications. It uses a unique combination of several core technologies including Metal Oxide Varistor (MOV), Bulk Metal Nonlinear Resistor (BMNL) and Thyristor Surge Protection (TSP). This combination provides a reliable, low-cost and robust solution that meets the needs of various system requirements such as automotive infotainment, industrial networking, medical and LED lighting.

MXP6KE91A consists of a large-area metal oxide mov into which a series of bulk metal nonlinear resistors are embedded. At the junctions, small protection thyristors are also included for additional protection. It is this unique combination of components that provides the MXP6KE91A with high performance surge protection.

The working principle of the MXP6KE91A is based on the principle of voltage spiking and its suppression. When the voltage spike or lightning transient exceeds the breakdown voltage of the MOV, the MOV diverts the current away from the protected circuit and into absorbing the surge. When the voltage spike is sufficiently large, the energy is dissipated in the MOV, and the low-impedance path created by the resistors and thyristors is opened, which limits the voltage below the breakdown voltage of the MOV.

The MXP6KE91A also provides the ability to minimize the impact of electrostatic discharges (ESD) and differential mode currents. This is because the device has an energy storage device (ESD) that can store the unwanted energy from both the ESD and differential mode currents, and redirect it away from the protected device. In addition, the device has an integrated filtering capacitor (CIP) which provides additional protection from high-frequency interference.

The MXP6KE91A works in a wide range of temperatures. It is rated up to 150 °C with a minimum breakdown voltage of 1.45V and maximum leakage current of 5mA. The device is also rated for up to 100kA peak 8/20 μs pulse with a minimum breakdown voltage of 6.6V and maximum clamping voltage of 15V. The device also has a fast response time of less than 1.5ns, and a low capacitance rating of ≤0.50pF.

In conclusion, the MXP6KE91A is a board-level TVS diode which provides surge protection from lightning transients and adequately protects from NTV up to 8A pulse. It is an efficient and reliable solution that can be used in a wide range of industries and operating temperature range. The device has an integrated ESD, and a filtering capacitor for additional protection from interference and other harmful electrical transients. It has a fast response time and low capacitance rating. This makes the MXP6KE91A an excellent choice for various protective applications.

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