V120ZU1P

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Surge protection is important for many types of electrical devices. To prevent damage from voltage spikes or voltage surges, many circuits use an overvoltage protection component like a V120ZU1P. In this article, we will discuss the V120ZU1P application field and working principle in the context of TVS (Transient Voltage Suppressor) and MOV (Metal Oxide Varistors).

V120ZU1P is a low-power, high-capacity Transient Voltage Suppressor (TVS) that offers excellent performance as surge protection components. The V120ZU1P is designed for the protection of low-voltage circuits and for DC voltages up to 32 volts. It is designed to handle up to 1000 amps of surge current. The V120ZU1P has an internal clamping voltage of 10.52V and a surge energy absorption capacity of 11 Joules.

The working principle of the V120ZU1P is based on diode operation. When the incoming voltage is below the specified device level, the diode does not conduct current and the device works as an open circuit. But when the incoming voltage exceeds the allowed level, the diode turns on and conducts the surge current, thereby protecting the circuit from the surge. The surge is dissipated in the diode as heat.

Metal Oxide Varistors (MOVs) are also commonly used for surge protection. MOVs are non-linear resistors that offer protection from voltage surges. The MOV is made from an electrically conductive material that exhibits very non-linear current-voltage behavior when a voltage is applied to it. The MOV’s resistance increases as the applied voltage increases, thus offering surge protection. MOVs protect circuits from higher voltages by limiting the current flow.

Unlike the diode-based TVSs, MOVs can also handle high-frequency surges and offer faster response times. MOVs are typically used when faster response times are required or when higher voltages are expected. However, MOVs are not suitable for low-voltage circuits because of their relatively high leakage currents.

In conclusion, both TVSs and MOVs offer good protection from voltage surges. TVSs are better suited for low-voltage circuits, while MOVs can handle higher voltages and faster response times. The V120ZU1P is an excellent example of a TVS that offers high-performance surge protection.

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