C441PM

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A thyristor is a three-terminal, solid-state semiconductor device with an electrical capability to switch an AC power flow once the right conditions are established. The thyristor is the most widely used semiconductor switch in AC power control application. During normal operation, its terminals are labeled as anode (A), cathode (K) and gate (G). A current must flow through the thyristor between its anode and cathode terminals before the gate terminal can be used to turn it on or off. When the thyristor is on, the current is continuous and a reverse blocking voltage must be applied to turn it off. Thus, the thyristor provides a simple way to control the flow of current in an AC circuit.

The C441PM application field and working principle can be depicted as follows. C441PM is a high voltage pulse generator thyristor specifically designed for applications such as metal surface preparation, oil well logging and steel plating. This device has a high on/off-state ratio, a minimum off-state blocking voltage of 1100 V and an on-state saturation voltage of about 8 V. It is fitted onto a large copper heat sink with or without a protective black insulating coating. They come with a variety of gate configurations and triggering options.

In its normal operation, the C441PM thyristor works like two back to back diodes with their anodes connected directly to each other thus isolating the gate from the load. The thyristor triggers only when a sharp positive voltage impulse from a high voltage pulse is applied to its gate terminal. This voltage pulse generates a very sharp current through the thyristor and across the load. The thyristor then becomes in its on state and starts conducting. To turn off the device, a reverse blocking voltage is applied. The blocking voltage can either be generated externally or internally. Once the blocking voltage is removed, the thyristor becomes back in its off state.

The C441PM thyristor can be used in many applications such as high voltage pulse generator, power switching and AC power control. These devices are used in various industrial applications like automatic welding, electric arc furnace and control of alternating or direct current power. The C441PM thyristor provides reliable and efficient control of high voltage with its high on/off-state ratio and stable performance.

In conclusion, C441PM is a thyristor specifically designed for applications such as metal surface preparation, oil well logging and steel plating in power switching and AC power control. It offers high on/off-state ratio, a minimum off-state blocking voltage of 1100V and an on-state saturation voltage of about 8V. With its reliable and efficient control of high voltage and stable performance, it is highly suitable for various industrial applications like automatic welding, electric arc furnace and control of alternating or direct current power.

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