B72587E3140S200

TVSs (Transient Voltage Suppressors) - Varistors, MOVs, are some of the most important components of any electronic device or system, used for their ability to effectively protect components and systems from over-voltage transients. The B72587E3140S200 is a widely used metal oxide varistor (MOV) manufactured by EPCOS, a world leading supplier of components for electronic and electrical applications. It is a surface mount device with an operating temperature range of -55°C to +125°C. The device is enclosed in a hermetically sealed aluminum shell and is compliant with the RoHS (Restriction of Hazardous Substances) directive. It is rated for an operating voltage of 200V and a maximum peak pulse power of 140A.

The B72587E3140S200 has a wide range of applications in the electronics industry. It is commonly used in microcontrollers, embedded systems, memory chips, servers, power supplies, communications networks, and other electronic circuits. It can be used to protect against various types of over-voltage transient conditions, such as power surges, power line surges, ESD (electrostatic discharge), inductive switching, and others. It is also effective in limiting transient currents and dissipating unwanted electrical energy.

The working principle of the B72587E3140S200 is simple. It has a “reverse biased” p-n junction which acts as a low-impedance pathway for current in the forward direction, but blocks current in the reverse direction. This is due to the varistors high reverse breakdown voltage which is higher than normal forward conduction voltage. When the applied voltage exceeds the specified breakdown voltage, current will flow through the varistor, and the potential difference will be reduced. This prevents damages to the circuits and components and as a result the electric system remains safe.

In conclusion, the B72587E3140S200 is an important component in the protection of electronics and electrical equipment from a range of transient conditions. Its reverse biased p-n junction allows it to provide reliable protection against overvoltage transients, and its wide operating temperature range makes it suitable for use in extreme conditions. It is a cost effective solution that is capable of handling high peak pulse power, and is an essential part of any modern electronics system.