MX5KP12AE3

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The MX5KP12AE3 is a high-efficiency surface-mount low capacitance transient voltage suppressor (TVS) diode with a 12V nominal working voltage. It is one of the most popular TVS diodes available today and is used in a wide range of high-voltage applications, including automotive, industrial, and aerospace applications.

TVS diodes are devices that protect against dangerous or transient overvoltage conditions. They are designed to clamp voltages above their breakdown voltage, thereby suppressing transients and overvoltage events. In a nutshell, they act like a fuse, “blowing” when overvoltage conditions occur and protecting the circuit from damage due to excessive voltage.

The MX5KP12AE3 is designed such that it can handle up to 5 kilowatts of energy with a response time of 20 nanoseconds. It is a low-capacitance diode, meaning it can handle high-frequency voltages without introducing undue load on the circuit. The rated capacitance of the MX5KP12AE3 is 75pF, which is suitable for a wide range of high-frequency applications.

This diode is RoHS compliant and comes in a miniature 16-Lead LLP package, making it suitable for a wide range of high-speed applications. It is also AEC-Q101 qualified, allowing it to be used in automotive applications, such as ignition systems, automotive sensors, and HVAC systems. The MX5KP12AE3 has an excellent surge handling capability, with the ability to handle up to 8 kA of 8/20 uS current per EIA-JC42.

The working principle of the MX5KP12AE3 is quite simple – it responds to transient overvoltage conditions by quickly conducting current away from the protected circuit. As the voltage exceeds the breakdown voltage of the diode, it quickly switches on and shunts the excess voltage away from the protected circuit or component. This action serves to protect the circuit from damage due to excessive voltage. Once the transient event dissipates, the diode switches back off, allowing the circuit to continue operating normally.

In summary, the MX5KP12AE3 is a versatile, high-efficiency, low capacitance surface-mount TVS diode with a 12V nominal working voltage suitable for a range of automotive, industrial, and aerospace applications. It is RoHS compliant and has a good surge handling capability, making it ideal for protecting circuits from transient overvoltage events.

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