MLV0805E30403T Circuit Protection

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The MLV0805E30403T is a surface-mount device, belonging to the TVS-Varistors, MOVs family. It is designed to provide transient overvoltage protection and a high level of surge current handling capability. This device is typically used in high-speed, wide-bandwidth circuits or interfaces with high pulse current.

The MLV0805E30403T device consists of a 805 component package that houses two varistors with an internal barrier rating of 150V AC/DC. The electrical construction of the device is based on two series-connected variable resistors, which provide an effective absorption range from 9V to 150V DC. It is also compliant to the RoHS directive. The electrical characteristics of the MLV0805E30403T are guaranteed by a patented 3-terminal zener, which enhances the usability of the device in surge protection applications.

The MLV0805E30403T can be used in a wide range of application fields, ranging from consumer electronics such as computers, mobile phones, data networks and gaming systems, to industrial equipment like control systems, alarm systems, automotive applications and telecom systems. The device is particularly suitable for protecting sensitive electronic circuits from transient pulses, such as those caused by electrical noise from electromagnetic interference (EMI). The varistor can be used in consumer devices and industrial systems to provide voltage protection and act as a low-impedance current path for high peak current pulses.

The principle on which this device is based is the phenomenon of ‘voltage-dependent resistance’. In this phenomenon, the resistance varies with the applied voltage. The resistance decreases when the applied voltage increases. This phenomenon is employed in the MLV0805E30403T to limit the maximum voltage and current of the transistor. As the applied voltage increases, the resistance becomes comparatively lower, thus allowing more current to flow. This behavior helps protect sensitive electronic components from overvoltage damage.

The MLV0805E30403T is part of a range of surge protection devices that are designed to provide a high level of performance with a low level of risk in a variety of applications. Due to its proven reliability and robust construction, the device is suitable for use in all types of safety-critical application. Thanks to its small footprint, the MLV0805E30403T can also be conveniently used in densely packed PCBs.

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