ROV20-101K-S

TVS ( Transient Voltage Suppressor ) diodes and MOV ( Metal Oxide Varistor ) are two of the most commonly used electronic components to protect against transients. While both are designed to protect against voltage surges, they do so in very different ways, which is why it is important to understand the differences between the two before choosing which one to use. The ROV20-101K-S is a Transient Voltage Suppressor which is capable of handling large transient surges. It is designed to provide secondary protection against lightning-caused surges.

The ROV20-101K-S is composed of Zinc Oxide, a non-linear material, which is used to form a voltage dependent resistor. It responds to a voltage overshoot by clamping the voltage at a predetermined level, and dissipates the energy of the surge into heat. Its response time is so rapid that it can absorb more than 500000A of current when the voltage reaches a specific peak. Its Leakage Current is typically less than 0.5mA, and its capacitance is about 1100pF at 1MHz.

The ROV20-101K-S can effectively clamp voltage during the transient event and effectively absorb the transient’s energy to reduce its effect on the rest of the system or components. In addition, it also acts as a “resistor” to reduce the peak current during a transient event, preventing an overload of the protected circuit. It can be used in a variety of circuits from power supplies, power amplifiers, voltage regulators, and even in automotive systems.

The ROV20-101K-S offers a high level of protection against surge voltages and current spikes, and its design makes it suitable for a variety of applications. It is designed to absorb large surges and is also capable of handling large transient surges. Its low leakage current also reduces the amount of power loss during the transient event, making it an ideal choice for applications where minimal power loss is desired. Overall, the ROV20-101K-S is an excellent choice for applications needing surge protection.

Metal Oxide Varistors (MOVs) are another type of transient voltage suppressor. Unlike the ROV20-101K-S, which relies on the nonlinear characteristic of zinc oxide, MOVs use a low-resistance, high-dissipation material which acts as a resistor during a transient event, reducing the amount of current which flows through it. The benefits of MOVs are that they are extremely durable and can be used in a variety of situations. They are also more resistant to thermal loading, making them more reliable in high temperature applications. However, the drawback is that while MOVs can absorb lot of current, they do not offer the same level of over-voltage protection as the ROV20-101K-S.

In conclusion, both the ROV20-101K-S and MOVs are excellent choices for providing protection against transient voltages. The ROV20-101K-S offers high levels of protection against surge voltages and current spikes, and it is ideal for applications where minimal power loss is desired. On the other hand, MOVs offer a much higher level of surge protection, and they are more reliable in high temperature applications. Each type of surge protection device has its own strengths and weaknesses, and it is important to know the differences between them before deciding which one to use.