FBMOV300M

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TVS – Varistors, MOVs - often referred to as “overvoltage protectors” are type of electronic component used to limit transient surges of voltage, current or power. Their job is to divert large amounts of current away from sensitive electronics in the event of a voltage surge, protecting components from damage and incorrect operation.

FBMOV300M is an MOV type of varistor, constructed with a stack of zinc oxide strips that are coated with graphite, the foil layers of which are connected to metal plates. The zinc oxide strips are isolated from each other, ensuring a low series resistance and high capacitance value. FBMOV300M is a 300V varistor designed for a wide range of applications, from consumer electronics to industrial applications.

In terms of its application field, fbmov300m is suitable to protect sensitive electronics from voltage transients and increases which occur in many circuits, especially power supplies. The device\'s clamping voltage of 300V guarantees a degree of protection that is sufficient to shield the most delicate electronic components from overvoltage. Due to its low leakage current and low ESR, the varistor is capable of efficient voltage regulation, maintaining a stable voltage level throughout the circuit operation.

In terms of its working principle, fbmov300m is based on the Zinc Oxide Varistor (ZOV) principle, in which the zinc oxide strips have a wide range of conduction characteristics, a low series resistance and high capacitance value. This ensures that when a surge of voltage is present, it creates a conductive path across the zinc oxide strips, diverting current away from the protected components and regulating the voltage at the desired level.

When the surge of voltage dissipates, the varistor shuts down and stops the current flow. The range of energy the device is capable of dissipating depends on the size of the device and the energy dissipation trace of the manufacturer. Fbmov300m is capable of dissipating energy up to 15J.

In terms of its technical properties, the device has a maximum range of voltage up to 300V, capacitance of 2.2pF and a dynamic resistance value of 0.003 ohms. The dielectric strength of the varistor is 1500VAC, and it has an operating temperature range of -40C to +85C.

To sum up, fbmov300m is an MOV type of varistor suitable for a wide range of applications. Its Zinc Oxide Varistor (ZOV) principle makes it capable of deflecting transient surges of voltage or current, protecting delicate electronics from overvoltage. Its working parameters of maximum range of 300V, capacitance of 2.2pF, dynamic resistance of 0.003 ohms and an operating temperature range of -40C to +85C make it suitable for industrial and consumer applications.

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