MP4KE91CA

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TVS (Transient Voltage Suppressor) diodes integrate overvoltage protection circuits for providing robust and reliable protection for embedded electronic systems. These technologies, such as MP4KE91CA, are designed to limit the voltage surge in the event of an electric shock, electrostatic discharge (ESD), inductive switching, and EMI/EMC disturbances. The most commonly used applications for TVS diodes include power distribution systems, communications systems, industrial and consumer electronics, and automotive electronics.

MP4KE91CA is a diode designed for automotive overvoltage protection. It consists of a Zener diode with additional avalanche breakdown protection connected in parallel with an ESD diode. The diode has an enabling voltage of 9.1V and avalanche breakdown status at 30V, and can tolerate voltages up to 78V. It is capable of suppressing multiple high-voltage spikes in the event of an electric shock, such as electrostatic discharge (ESD) and inductive switching, with minimal interference or damage to the connected equipment.

The working principle behind the MP4KE91CA is simple yet effective. When the enabling voltage of 9.1V is applied, the Zener diode’s junction impedance begins to decrease. As the applied voltage increases, the junction impedance further decreases and avalanche breakdown begins to occur. The applied voltage must exceed the breakdown voltage of 30V for avalanche breakdown to occur. Once the applied voltage exceeds the breakdown voltage of 30V, the diode will quickly begin to absorb the excess voltage, limiting the surge and providing robust protection.

The MP4KE91CA is designed to be used in automotive electrical power systems, including consumer electronics, automotive and industrial systems, circuit boards, etc. It is capable of tolerating transient over-voltage and over-current conditions that could disrupt the system. It is also designed to provide fast response times, with transient over-voltage protection of up to 78V and discharging capabilities of up to 25A.

The MP4KE91CA offers a wide range of protection features, including EMI/RFI protection, transient voltage spike protection, and failsafe protection. It is designed to protect sensitive electronics from damage due to electrostatic discharge, inductive switching, EMI/RFI interference, and other transient overvoltage conditions. Once activated, the diode will limit the surge voltage and protect other rugged electronic components from damage or malfunction.

The MP4KE91CA is designed to meet the needs of automotive applications that require robust protection from transient overvoltage. It is capable of providing fast response times and reliable protection against EMI/RFI, transient voltage spikes, and other overvoltage conditions. It is also designed to be used in a wide range of automotive and industrial systems, and is reliable enough to ensure the safety of consumer electronics and automotive systems.

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