SMOV34S461MP

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TVS - Varistors, MOVs are descriptive terms for the categories of transient voltage suppression devices used in electrical energy systems. They are designed to protect the sensitive electrical equipment from the effects of high voltage spikes and transient events. The SMOV34S461MP is an example of such a transient voltage suppressor, typically designed to protect a DC or AC circuit from short-term over voltage, fast transients, and high frequency noise interference. This article will give a brief overview of the application field and working principle of the SMOV34S461MP.

The SMOV34S461MP is typically found in applications where high voltage transients and spikes need to be suppressed. A common example of this would be in a circuit connected to a power line, where the transient voltage and/or current could be caused by lightning strikes, power surges, switching of heavy electrical loads, etc. The SMOV34S461MP functions by clamping the voltage to a safe level when an overvoltage occurs, thus preventing anything connected to it from being damaged. The device is also compatible with both AC and DC currents.

The working principle of the SMOV34S461MP is based on a special kind of MOFSET transistor. The MOFSET provides a low resistance path when the voltage rises above a certain level. This allows the transient voltage to be diverted away from the protected circuit, usually to a grounding point. The device is designed to withstand up to a maximum of 34V with a maximum energy of 461mJ.

The SMOV34S461MP is usually available as a small, lightweight package, typically in an SMD or surface mount format. The device can be easily installed on a printed circuit board in order to provide the desired level of protection. In addition to the standard MOFSET based device, some manufacturers also offer a thermally activated version that will respond to high power pulses by automatically turning on a thyristor that clamps the voltage to a preset level. This is especially useful for applications that require continuous, long-term protection.

In addition to protecting from transients, the SMOV34S461MP can also be used for ESD (electrostatic discharge) protection. This is a very important feature as ESD can be damaging to sensitive electronic circuits. The device is designed to limit the voltage to a predefined level (usually <1V), thus avoiding any potential damage caused by the discharge. The SMOV34S461MP offers excellent ESD protection that meets the requirements of the IEC 61000-4-2 standard.

The SMOV34S461MP is a robust, low cost solution for providing high voltage transient and impulse protection and ESD protection in a variety of applications. It is available in a variety of packages and is easy to install, making it an ideal choice for anyone looking to protect their sensitive electrical equipment.

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