SE40PBHM3/86A

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SE40PBHM3/86A is a kind of power rectifier diodes, belonging to the type of bridge rectifier. It’s widely applied in various fields, including computer, power adapter, AC-DC converters, etc. It rated at 40A, with peak reverse voltage up to 800V and repetitive peak reverse voltage up to 700V.

The circuit scheme of SE40PBHM3/86A is not different from others in nature, and in normal practice, it consists of four semiconductor diodes connected in a bridge configuration. This configuration helps in preventing electricity of high voltage from passing through the bridge and into the power source.

In the case of SE40PBHM3/86A, it designed for rectifying power from a sinusoidal AC supply to a pulsating DC with relatively little double waveform distortion. It obtained this goal by arranging to operate the four diodes over the four regions of current-voltage operation, in which each diode is biased in the forward direction and conducting the current, so that the high voltage AC input could be rectified with high efficiency and stability.

The two diodes connected between the neutral (N) and neutral (N) terminals will enable current only in the positive half cycle of the input waveform. Similarly, the reverse pair also enables the current in the negative half cycle. Therefore, a almost full wave rectification occurred.

As the electric waveform passes through the bridge, the secondary current flows through the load and gives the output dc component. The output DC component has pulsating wave, it’s relatively simple to smooth the output waveform by a good quality capacitor located at the output of the bridge.

In the device, it’s specially designed to operate at a continuous forward current of 40A with a peak instantaneous current of 60A. It also features with large forward voltage drop and small reverse current leakage, and also small temperature coefficient.

In conclusion, SE40PBHM3/86A is an efficient and reliable power rectifier diodes, widely applied in computer, power adapter, AC-DC converters, and other related fields. Besides, the bridge rectifier configuration, it features with low electrical noise, relatively simple construction, cost effective, excellent thermal stability, and long service life.

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