SMAJ18C-E3/5A

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Transient Voltage Suppressor (TVS) diodes are an important form of overvoltage protection. TVS diodes are semiconductor devices that can protect electronic circuits from damaging overvoltage transients and near lightning-induced electrical surges. The SMAJ18C-E3/5A is a unidirectional, silicon-based, low-voltage transient voltage suppressor (TVS) diode.

This device offers protection against various electrical threats such as electrostatic discharges (ESD), nuclear electromagnetic pulses (NEMP), lightning, and other commonly found surge events. It is designed to clamp circuits, phones, consumer electronics, automobiles, urban buses, and solar systems from high-energy pulses.

Application Fields: The SMAJ18C-E3/5A is primarily used in the automotive, telecommunications, telecommunications, consumer electronics, datacom, and industrial sectors. It is ideal for applications such as protection on portable devices, consumer electronics, phones, automobiles, buses, photovoltaics, and industrial electronics. This device is designed to provide robust protection against disruptive electrical transients and surges.

Working Principle: The SMAJ18C-E3/5A, a unidirectional low-voltage transient suppressor diode, uses a silicon-based technology to protect against electrical threats. It consists of a silicon diode which provides fast, soft-clipping action to keep the power supply output voltage within safe limits, while simultaneously reducing the surge current. The device acts as a second level of protection, which is triggered when voltage on the protected line rises too high. It performs two actions in rapid succession: absorbs energy from the transient voltage and shunts it away from the protected line; and then conducts the energy away from the protected line and dissipates it. The device acts as a clamping element, limiting the voltage to safe limits on the protected line.

The device offers low-leakage current and robust protection against damaging electrical surges, as well as superior protection to connected components and systems. It also ensures that the voltage that clamps the protected load remains below the ratings of the components connected to it. Additionally the device offers overvoltage protection to system control ICs, interface circuits, and other sensitive components.

The SMAJ18C-E3/5A is designed to comply with industry environmental standards, such as RoHS, REACH, and UL. It is easy to install and can be connected to any standard footprint. It is highly reliable and cost-effective, and is ideal for any application requiring efficient and reliable overvoltage protection.

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