FBMOV440M Circuit Protection

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TVS - Varistors, MOVs are a form of surge protection in electronics. FBMOV440M is a transient voltage suppressor designed to protect against transient overvoltages. The device has an operating range of -2.5V to 440V, making it suitable for a wide range of applications and suitable for use in many different environments.

The FBMOV440M is designed to protect against electrostatic discharge, lightening, and transients. It is constructed of zinc oxide and offers protection against overvoltages up to an operating range of 440V. The device is designed to clamp the transient and divert the energy away from the downstream components, thus protecting them from damage. The device is typically placed across the input to a device, such as a power supply or processor, and when a transient voltage spike is detected it is diverted away from the device.

The FBMOV440M is typically used in automotive, medical, industrial and consumer electronics applications. In automotive applications, the device is used to protect electrical components from transient overvoltages due to inverter switching and engine start/stop events. In medical applications, the device is used to prevent damage to patient monitoring and control devices from transients. In industrial applications, the device is used to protect any component or system from transients caused by power failure or switching off of equipment.

The FBMOV440M works by “clamping” the transient voltage to a maximum voltage of 440V. Thedevice is designed to have a “holding voltage” when the transient voltage exceeds 440V. This holding voltage is much lower in magnitude than the transient and prevents damage to downstream components. The clamping should be completed within 2.5ms of the initial transient event. After the clamping has been completed, the device slowly releases the charge, allowing the circuit to return to normal operating conditions.

The FBMOV440M has an extremely low leakage current and a low clamping ratio, which enables it to handle larger voltage spikes without damage. The device also has low capacitance, meaning it can handle fast transients without causing significant distortion in the waveform. The device also has enhanced thermal performance, allowing for better performance in higher temperature environments.

In conclusion, the FBMOV440M is a robust and reliable transient voltage suppressor that can be used in many different applications. It is designed to protect against transient overvoltages, including those caused by inverter switching and engine start/stop events. The device is suitable for a wide range of operating temperatures and can handle fast transients with minimal distortion. Finally, the device has an extremely low leakage current and a low clamping ratio, meaning it can protect larger voltage spikes without damage.

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