MSMBG18A

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TVS – Diodes are a type of protection device which are designed to provide protection for other components, in a circuit, against transient voltages. The device is composed of several diodes in parallel and connected in series with a varistor. The diodes start to conduct, and thereby clamp the transient voltage, when the voltage reaches a predetermined level. The MSMBG18A TVS – Diode is an ideal device for providing protection in various designs and applications.

The MSMBG18A is designed specifically for use in high speed data line application and is suitable for protection from various overvoltage conditions. It’s constructed from a metal oxide varistor, which works in combination with a series of diodes, and limits the voltage rise to a predetermined level. Moreover, the device is characterized by low capacitance and very low leakage current. It provides effective protection against unwanted ESD transients and is suitable for use in automotive, industrial and telecom applications.

The maximum input and output voltages of the MSMBG18A are 18V and 12V respectively. It’s able to dissipate power up to 0.5W and its maximum working current is 1A. The response time of the device is low and is typically 5ns. Its typical ESD protection level is IEC 61000-4-2 level 4, air discharge. It is also capable of withstanding surges of up to 1.5kVpeak (2/50µs).

The working principle of the MSMBG18A TVS Diode is quite simple. When an overvoltage transient is detected, the diodes start to conduct and thereby clamp the voltage. A varistor is used to limit the voltage to a predetermined level and the metal oxide material of the varistor absorbs the energy from the transient. The energy is dissipated as heat, so the device is able to withstand a certain amount of power without failure.

When designing with the MSMBG18A, it’s important to consider the effects of the additional capacitance that this device can introduce into the circuit. The MSMBG18A should be placed as close as possible to the point of protection and as far away as possible from sensitive components. This will minimize any unwanted coupling from the device. In addition, the device must be installed correctly to ensure that it is subjected to the transient voltage and current that it is designed to absorb.

In summary, the MSMBG18A TVS Diode is an ideal device for providing overvoltage protection in circuit designs. It is designed specifically for high speed data line applications and can be used in a variety of applications such as automotive, industrial and telecom. The device is characterized by low capacitance and very low leakage current and provides effective protection against ESD transients.

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