TMOV34S551MPX2696

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Surge protectors and Varistors (surge protective devices) are an integral part of the ever-expanding electronic era. Devices like the TMOV34S551MPX2696 play an important role in the safety of circuits and systems. In this article, we’ll be exploring the application field and working principle of the TMOV34S551MPX2696.

Introduction to TMOV34S551MPX2696

The TMOV34S551MPX2696 is a Varistor (metal oxide varistor) manufactured by STMicroelectronics. It is designed to protect circuits or systems from overvoltage conditions (surges). It is an ideal device for automotive and industrial applications due to its high energy clamping capability and increased surge protection.

The TMOV34S551MPX2696 has a maximum surge current rating of 18A, a clamping voltage of 34V, a stand-off voltage of 51V, and a maximum energy of 56J. The device also has a physical size of just 4.6mm x 4.6mm, making it suitable for a wide variety of applications.

TMOV34S551MPX2696 Application Field

The TMOV34S551MPX2696 is suitable for a wide range of applications due to its size and feature set. It is particularly well suited for automotive applications (such as infotainment systems) and industrial applications (such as solar inverters) due to its high energy clamping capability and increased surge protection.

The device can also be used to protect circuits from high voltage spikes, surges, and transient voltages. This makes it an ideal choice for telecommunications and data network applications, where protection from electrostatic discharges (ESD) and other overvoltage events is necessary.

TMOV34S551MPX2696 Working Principle

The TMOV34S551MPX2696 is a Varistor, or ‘variable resistor’. The device operates by displaying a nonlinear electrical characteristic, which minimizes its voltage drop under normal operation (typically between 2-14V), and increases dramatically during the occurrence of an overvoltage event.

During a surge, the device’s ‘clamping voltage’ is increased, thus clamping the overvoltage energy within the device and limiting the voltage to a level which is safe for the connected circuits or systems. This effectively ‘shunts’ the excess energy away and prevents it from causing damage.

Conclusion

The TMOV34S551MPX2696 Varistor is an ideal solution for a wide range of surge protection applications. It is a highly functional device which is compact and cost effective. The device is suitable for use in telecommunications, automotive, industrial, and data network applications due to its high energy clamping capabilities and increased surge protection ability. It operates via a nonlinear electrical characteristic, which clamps the excess energy during overvoltage events and shunts it away from the connected circuitry or systems.

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