V481HC40

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TVS-Varistors, MOVs are electronic components used for protection against over-voltages or transient voltage surge. They dissipate any excessive voltage or current before it can cause damage to other components in the system. The V481HC40 is an industrial transient voltage suppressor that is designed to provide a highly reliable and cost effective solution against over-voltage and surge-protection applications.

The V481HC40 is a voltage-sensitive device which consists of two main parts - a semiconductor section and a metal oxide varistor section. The semiconductor section consists of a zener diode and a voltage protection device (VPD). The zener diode acts as a breakdown device which limits the voltage and current in case of a surge or over-voltage situation. The VPD acts as a voltage protection device and reduces or eliminates any over-voltages. The two sections are connected together in a series arrangement, providing a linear relationship between applied voltage and current.

The MOV section consists of a series of metal oxide varistors. These varistors are designed to absorb the majority of any voltage and current over-voltages, protecting the other components in the system. By dissipating the energy, these varistors limit the surge or over-voltage and allow the system to continue to operate without damage or interruption.

The V481HC40 is mainly used in industrial, telecommunications, medical, and automotive applications where protection against over-voltage or surge-protection is required. In industrial applications, it is used to protect against power surges coming from the power supply or other parts of the system, while in telecommunications and medical applications, it is used to protect against lightning strikes or other static discharge events. In automotive applications, it is used to protect against electrical interference from the vehicle’s engine and other electronic components.

The V481HC40 is also suitable for high power applications, as it has an extremely high surge-protection capacity of up to 4,000V and can withstand up to twenty times the rated power (60A) for long duration. This device is also very reliable, with an average life of over 160,000 operating hours without damage. Lastly, the device has an extended operating temperature range from -55°C to +150°C, which makes it ideal for use in a wide range of applications.

The working principle of the V481HC40 is relatively simple. It has two sections, the semiconductor and the MOV section. The semiconductor section is in control of the voltage protection limit by means of the zener diode. When a surge or over-voltage reaches the protection limit, the zener diode breaks down and limits the voltage and current in the system. After the waveform has passed, the device will then return to its normal operating mode and protect the system from over-voltage or surges.

The MOV section works in tandem with the semiconductor section. When an over-voltage or surge passes through, the MOV section acts to absorb or dissipate the majority of the energy, thereby limiting the surge and protecting other components on the system. The V481HC40 can be used in circuits with high power ratings without risking damage as it can tolerate up to twenty times the maximum rated power.

In conclusion, the V481HC40 is an industrial transient voltage suppressor designed to provide high reliability and cost-effectiveness. It has a high surge-protection capacity of up to 4,000V, an extended operating temperature range from -55°C to +150°C, and an average life of over 160,000 operating hours. It is ideal for industrial, telecommunications, medical, and automotive applications with protection against over-voltage or surge protection. The working principle of the V481HC40 involves a semiconductor section with a zener diode limiting the voltage and current while an MOV section dissipates the excessive energy.

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