MPLAD18KP90A Circuit Protection

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The MPLAD18KP90A is a TVS (transient voltage suppressor diode) that offers an unidirectional protection capability against over-voltage transients. It offers reliable protection against electrical insults that occur when a system’s power supply experiences a sudden surge in voltage. These voltage surges could occur due to a variety of events, such as lightning strikes, electric vehicle collisions, or motor vehicle starter circuits. When the voltage rises above the device’s clamping voltage, the device will start to conduct, limiting the voltage across the protected system.

The MPLAD18KP90A uses a unique patent-pending technology, which is unique to it, allowing for superior performance without requiring bulky heat sinks or costly assembly. This makes the device ideal for use in a variety of applications, including automotive electronics, consumer electronics, medical equipment, and industrial electronics, where size and cost are critical considerations.

The MPLAD18KP90A is capable of clamping up to 18kV of transient voltage without the need for a heat sink. It also has an operating voltage range of -60V to +90V and a breakdown current of 900 mA. This makes the device ideal for protecting higher voltage systems from transient voltage spikes. It also offers superior EMI suppression.

In general, the working principle of the MPLAD18KP90A is based on avalanche breakdown. When the protected circuit experiences an over-voltage condition, the device will start to conduct, limiting the voltage across the protected system. The amount of current conducted is determined by the amount of voltage the device is subjected to and the breakdown voltage of the device. If the voltage is sustained above the breakdown level, the avalanche effect will begin and the device will undergo Joule heating, thus breaking down the avalanche voltage.

The MPLAD18KP90A is suitable for use in a variety of applications, such as automotive, consumer, medical, and industrial. In these applications, it can be used to protect circuits and systems from over-voltage events. It can also be used as a surge suppressor for limiting high voltage transients. Additionally, the device’s excellent EMI suppression properties make it ideal for use in applications that are vulnerable to electromagnetic interference.

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