ROV05H330K

The ROV05H330K is a device that belongs to the family of TVS (Transient Voltage Suppressors) – Varistors, MOVs. This device is designed to provide protection for transient voltage events and protect components which are susceptible to voltage transient over-voltage. In order to do so, the ROV05H330K works by clamping the applied surge or spike voltage to a safe level and dissipates the energy from the transient as heat. This is a single channel device, meaning that it is only able to clamp one type of over-voltage event, thus most systems will require several of these devices in order to provide protection against all types of transient voltage events.

The ROV05H330K has a variety of application fields, with protection of equipment against over-voltage transients being the primary function of the device. These include protection of automotive systems such as ECU’s or The electronic Control Units which are present in every modern vehicle. It is also used to protect telecommunication equipment, computers, and peripherals. It is also used in power-related equipment such as solar panel systems and battery monitoring systems in order to protect against over-voltage events.

Here is the working principle of the ROV05H330K TVS device:When an applied voltage is above the rated standoff/clamping voltage of the device, it turns on and clamps the applied voltage to slightly above the breakdown voltage. In this region, the device behaves like a short-circuit (or a low-ohmic resistor). Consequently, the current through the device is limited, thus reducing the energy from the transient surge such that it does not destroy the components which are connected to it. After the energy of the surge dissipates, it turns back off, allowing the network to resume normal operation.

In terms of construction, the ROV05H330K uses a pair of semiconductor chips similar to what is found in a typical diode. These are connected to each other through a sacrificial metal layer which provides a lower resistance path during the switching stage, allowing the device to handle high surge currents. This is why the device is able to provide a very low impedance circuit for the surge and reduce the current to a level which is safe for the components which are being protected.

The ROV05H330K is a versatile TVS device which can be used to provide protection to a variety of equipment from over-voltage transients. Its construction and working principle help to ensure that the components connected to it remain safe during transient events, allowing for reliable operation in harsh environments.