TMOV34S621M

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Transorbit\'s TMOV34S621M is a component designed to protect against high voltage and surge transients. It is part of a class of components broadly referred to as transient voltage suppressors (TVSs). Together with other types of components, such as metal oxide varistors (MOVs) and gas discharge tubes (GDTs), these components protect equipment, electronics and wiring from harmful electrical transients produced by lightning or other high voltage surges.

TVS\'s are semiconductor devices that are used to protect against high voltage transients. They are often used as the front-end protection for power supplies, and are designed to clamp the voltage to a safe level, thus providing protection for the components beyond it. They are designed to handle much higher levels of voltage than a simple zener diode.

MOVs are devices that are designed to respond to voltage transients by quickly turning them into high-impedance paths to protect equipment. They work by carrying large amounts of current for short durations, and are designed to “absorb” the surge energy. However, due to their nature, they can be subject to thermal runaway and burn out if they become overloaded.

GDTs are also used in transient voltage suppression applications, but are designed to protect against high voltage transients by providing a path to ground in the event of a surge. These components are designed to direct the surge current onto a low-impedance path, eliminating the risk of thermal runaway.

The TMOV34S621M is a TVS diode specifically designed to provide the highest levels of transient voltage protection for high voltage applications. It is rated for an operating voltage of 621V, and is designed to handle a surge current up to 11.7A. It provides a peak clamping voltage of 800V, and is designed to protect against transients up to 25kHz. The device can also be used in dual-channel applications, with an upper and lower threshold voltage of 375V and 455V respectively.

In its simplest form, the TMOV34S621M works by responding immediately to an increase in voltage. This response causes the device to rapidly become a low-impedance path, diverting the surge current away from the protected components. When the voltage returns to normal, the device reverts back to its high-impedance state.

The TMOV34S621M offers improved performance when compared to other TVSs, MOVs, and GDTs. In comparison to other TVSs, the TMOV34S621M is rated for higher peak clamping voltage, higher surge current, and lower internal capacitance. Compared to MOVs, the TMOV34S621M has a faster response time and a higher voltage rating. When compared to GDTs, the TMOV34S621M offers improved protection due to its faster response time and higher surge current rating.

The TMOV34S621M is an ideal choice for applications requiring robust transient voltage protection, such as in industrial and automotive equipment. It is also suitable for medical, telecom, and consumer applications, due to its high reliability and low capacitance value. The device is RoHS compliant, SE rated, and organizationally certified for use in UL recognized assemblies.

In summary, the TMOV34S621M is a TVS diode specifically designed to provide the highest levels of transient voltage protection for high voltage applications. It offers improved performance when compared to other TVSs, MOVs and GDTs, and is an ideal choice for applications requiring robust transient voltage protection.

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