V18ZC40P

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS - Varistors, MOVs are a group of components that are often used for protection against transient overvoltages. In particular, the V18ZC40P is a kind of Varistor which is an effective, cost-effective and convenient protection device.

Varistors, or voltage variable resistors, are nonlinear, non-ohmic devices that reduce overvoltage and inrush current. They are made of zinc oxide with some additives, and are formed into a ceramic disc. They have several connections which correspond to various voltage ratings which are set off at the construction stage. The two main categories are Single-Voltage and Multiple-Voltage.

The V18ZC40P is a Single-Voltage Varistor, with a voltage rating of 18VDC. This means that the device will respond when the voltage over its terminals exceeds 18V, and then effectively absorb this energy, clamping the voltage at its rating. While it does this, it ensures that any transient spikes are either completely eliminated or limited to safe levels. This makes it ideal for use in applications that require protection against overvoltages for critical components.

The working principle of Varistors is based on the fact that when a voltage is applied over their terminals, their resistance decreases drastically. Upon reaching the breakdown voltage, the resistance trough this device typically falls from the normal range between 2 and 500KΩ to the range between 0.2 and 200Ω, depending on the component. At these low resistance values, the Varistor will absorb incoming energy, allowing any voltage spikes to be both effectively damped and limited to safe levels.

As for the applications of the V18ZC40P, the primary use is for protection against transient overvoltages in electronic equipment and communications devices. Some examples of applications include power supplies, AC circuits, communication lines and computers and peripherals. As for its capabilities, the V18ZC40P can do both short-term and long-term protection of these components, as its tolerance for peak current can reach up to 12.5A (1ms duration).

In conclusion, the V18ZC40P is a very useful type of Varistor and can be employed in various applications where protection against transient overvoltages is needed. Thanks to its high peak current tolerance and its wide voltage rating (18V), it can be used for anything from power supplies to communication lines, allowing it to effectively absorb and clamp energy from transient spikes, and thus providing effective protection.

The specific data is subject to PDF, and the above content is for reference