1.5SMC18

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Just like many devices and components used in electronics and circuit design, the Transient Voltage Suppression Diode, also known as TVS Diode, is used to protect circuits from voltage surges or spikes. The 1.5SMC18 is a small form factor, two-terminal unidirectional device capable of protecting any circuit connected to it from a variety of voltage transients in the 0.5A – 18A section. This TVS Diode is constructed from a special Zener diode, which will lower its voltage breakdown when the voltage transient reaches a certain level and allow the current to flow through the diode in order to protect the connected circuit.

The working principle of 1.5SMC18 is quite simple. When a voltage transient enters the diode, with an amplitude greater than its breakdown voltage, it will trigger the diode into conduction and allow the high energy to flow into the diode. The 1.5SMC18 has a very low self-inductance, ensuring that it can operate at very high frequencies. This means that the transient signal can be attenuated very quickly and any damage to the circuit or components to which it is connected is minimized.

1.5SMC18 application fields include: automotive and industrial power electronics, consumer electronics and communication devices, solar panel inverters, power supplies, and voltage regulator circuits. It is also used in aerospace systems, mobile phone circuitries, and other surge protection applications. This type of diode is an economical solution for providing high-speed protection in applications that require low breakdown voltages, such as those found in the 0.5A – 18A range.

In automotive and industrial power electronics, 1.5SMC18 often functions as a lightning protection device to prevent voltage transients caused by electrostatic discharge. It also serves as a shunt regulator by providing compliance with the automotive electronic assembly protection requirements, as well as standards such as IP67 and IEC 60529. This TVS Diode is also suitable for use in consumer electronics and communication devices, such as mobile phones and tablets to ensure the safety of the integrated circuitries against overvoltage.

The 1.5SMC18 TVS Diode is one of the most efficient and reliable components for protecting a circuit from overvoltage transients. It is designed to limit the peak transient voltage to a safe level to ensure that the connected components are not damaged by these spikes. By combining its proprietary Zener breakdown construction with a low self-inductance, this diode performs well in applications that require high-speed transient response and surge protection.

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