MAX3203EEWT+T

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The MAX3203EEWT+T is a solid-state device designed to protect sensitive electronic circuits from voltage transients induced by lightning, line faults, and other causes. This low capacitance transient voltage suppression (TVS) diode is housed in a 4-pin plastic package that includes an integrated stand-off tab. It is intended to be coupled directly into the primary power line, between the rail and ground.

Application field

The MAX3203EEWT+T TVS diode is used to protect sensitive electronic circuits in industrial, automotive, and consumer applications. It is suitable for portable equipment that attaches to a PC or other device and is subject to electrostatic discharge (ESD) or other transients. It can also be used in situations where there is large static charge buildup, or in applications that require surge protection. Examples of such applications are power supplies, I/O ports, AC/DC power converters, and Ethernet cables.

Working principle

The MAX3203EEWT+T TVS diode works by clamping the voltage surge to a specified peak value, typically within a few tens of nanoseconds. This ensures that it absorbs any transient voltage before it can reach the circuitry and damage it. It is an ideal solution for protecting sensitive circuits, as it has an excellent voltage handling capability, very low capacitance, and a very quick response time. Plus, its integrated stand-off tab provides an easy and reliable connection to the ground plane.

Its working principle is quite simple. It consists of two main parts: a diode and a varistor. The diode serves to block any positive voltage potential above a certain threshold, while the varistor will limit the voltage peak in the opposite direction. When a transient occurs, the MAX3203EEWT+T will limit the rise in voltage to the level of the threshold and, at the same time, divert the transient energy into the varistor.

The MAX3203EEWT+T TVS diode is a reliable solution for protecting sensitive circuits from transient voltages. It is designed to offer protection against a wide range of transients from ESD to surges caused by lightning and other sources. It has a fast response time and low capacitance, making it ideal for portable equipment and other low-power applications.

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