MAX6398ATT+T

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The MAX6398ATT+T device is an integrated circuit with two separate parts: a Transient Voltage Suppressor (TVS) diode and an integrated Polymeric Positive Temperature Coefficient (PPTC) element. This combination offers an effective TVS solution for overvoltage protection and power surge protection in applications such as automobiles, consumer appliance, industrial equipment, and point-of-use adapters. It is categorized as TVS - Mixed Technology.

The MAX6398ATT+T features two independent working circuits. The first is the TVS diode which protects the device and connected components by suppressing overvoltage transients, while the second is an integrated PPTC element which is used to limit inrush current in applications where large surge currents occur. The TVS and PPTC elements are connected together and housed in the same casing. The PPTC element i.e. Polymeric Positive Temperature Coefficient (PPTC) offers permanent protection against short-circuit current overloads, while the TVS diode provides additional protection against voltage transients.

The MAX6398ATT+T has a wide operating ambient temperature range and the clamshell package makes it easier to mount, which makes it suitable for a variety of automotive and consumer applications. Its integrated PPTC element is self-forming and self-healing, and provides permanent protection against high-surge currents. The component is designed to limit current and protect against short-circuit conditions while providing a low-resistance current path to the load.

When the device is exposed to a surge such as an EMI event, the TVS diode will begin to conduct current and quickly reach its stand-off voltage. The PPTC element will then activate its self-healing function and begin to limit the maximum current to the device as well as preventing further short-circuit conditions. The PPTC element can be reset by removing the external power source, thus restoring normal operation.

In summary, the MAX6398ATT+T is a TVS - Mixed Technology device which offers effective overvoltage protection and power surge protection in automotive, consumer appliance, industrial equipment, and point-of-use adapter applications. It combines a TVS diode and an integrated PPTC element to provide both overvoltage protection and inrush current limiting functionality. This device is particularly useful for applications which are subject to voltage transients and require reliable, long-term protection against EMI events.

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