ROV14-561K-S

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TVSs (Transient Voltage Suppressors) are devices commonly used to suppress high voltage transients in order to restrict their effects on electrical circuits. The range of TVS devices includes Varistors, MOVs (Metal Oxide Varistors) and High Voltage Transient Suppressors. Among these, MOVs are the most probable voltage suppressors. The MOV devices are capable of withstanding high levels of transients. They offer excellent protection to sensitive electronics from damage caused by electrostatic discharge (ESD), electrical fast-transients (EFTs), lightning strikes and other severe surges. The ROV14-561K-S is one such MOV device.

The ROV14-561K-S is a 14mm single-lead, unidirectional MOV (Metal Oxide Varistor) from Littelfuse. It is designed to protect low-voltage circuits and other sensitive electronics from over-voltage transients. The device comes in an over-molded, radiation-resistant package that offers excellent environmental protection. The device features a low-profile, low-capacitance design which makes it suitable for use in higher-frequency applications.

The ROV14-561K-S MOV is designed for a wide range of fields, including medical, automotive, military, telecom and aerospace applications. This makes it ideal for protecting sensitive circuitry from over-voltage transients resulting from voltage spikes, ESD, EFTs and lightning. It is also used as an input protection device in consumer electronics, telecom, automotive, and industrial applications.

The working principle of the ROV14-561K-S is based on the concept of V-I characteristics of a Varistor. Varistors are made up of nonuniformly distributed granular material called varistor film. This varistor film is comprised of zinc oxide particles which are embedded in a ceramic matrix. When a voltage is applied across the device, a nonlinear, voltage-dependent resistance is observed. This voltage dependent resistance is inversely proportional to the voltage applied. The resistance increases as the voltage decreases and vice versa.

The ROV14-561K-S has a voltage-suppression range of 14-561V and a maximum clamping voltage (Vc) of 780V. This resistance-voltage behavior helps to limit transient over-voltages to a maximum of 780V. The device has a rated power dissipation of 2.6W at 25°C and 0.25W at 70°C. It is RoHS compliant and can be used in a temperature range of -40°C to +125°C.

The ROV14-561K-S is a robust, single-lead MOV that offers excellent protection to low-voltage circuits from over-voltage transients. It is suitable for a wide range of applications, from consumer and medical electronics to telecommunications and aerospace. The device has an extremely low-profile, low-capacitance design which makes it suitable for high-frequency applications. Furthermore, its resistance-voltage behavior helps to limit transient over-voltages to a maximum of 780V. It is RoHS compliant and can be used in a temperature range of -40°C to +125°C.

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