V181HB34

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TVS – Varistors, MOVs, or Transient Voltage Suppressors play an important role in safeguarding a circuit against sudden electrical transients. The V181HB34 is one such device that allows engineers to protect their circuitry by diverting high voltage and current spikes away from critical components. The V181HB34 is a high performance, unidirectional TVS diode, designed to protect systems against transient overvoltages. It is suitable for a wide range of applications, such as automotive, medical, solar, and industrial. The device is constructed as a discrete component, and can be employed for a variety of tasks.

The V181HB34 is built with a Metal Oxide Varistor (MOV) and a diodic transient voltage suppressor (TVS), which are coupled together to provide an effective suppression of high energy transients. The MOV is responsible for absorbing large voltage and current spikes, while the TVS acts as a shunt for overvoltages and attempts to dissipate voltage and current surges. Together, the MOV and the TVS provide a robust protection system for circuits against dangerous electrics transients.

When it comes to the application field, the V181HB34 is ideal for use in a wide range of circuits, from consumer electronics to industrial applications. Due to its high surge and peak current ratings, it is especially suitable for applications in which the circuits are subjected to high-energy transients, such as medical, automotive, and industrial devices. The device is built to withstand repetitive surge currents of up to 25A (8/20μs). It is also capable of withstanding voltages of up to 5,640 V peak.

As for the working principle, the V181HB34 works by absorbing and diverting energy away from critical components in the circuit. The device is a bidirectional, Transient Voltage Suppressor (TVS), meaning that it can respond to both positive and negative voltage transients. The MOV is connected between the source power and the primary diode, and when a high voltage spike is detected, the MOV absorbs the excess energy and dissipates it as heat.

The primary diode of the circuit is then switched on, and acts as a shunt, redirecting the current away from the critical components of the circuit. This dissipates the excess energy and helps to protect the circuitry from overvoltage. When the voltage spike passes, the primary diode is turned off, and the MOV absorbs the remaining energy.

Overall, the V181HB34 is an effective tool for protecting a circuit from overvoltage transients. Its combination of an MOV and TVS make it a great choice for a wide variety of applications, and its high surge current rating and peak voltage withstand rating make it suitable for demanding, high-voltage applications.

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