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Diodes - Rectifiers - Single

SD175SA45A.T is a rectifier diode which belongs to the family of single rectifiers produced by Shunde Electrical Manufacturing Co., supplier in China. It is a preferred choice amongst the professional electricians and engineers due to its several characteristics such as its fast switching speed, low power consumption and its low parasitic series resistance.

Application Field

SD175SA45A.T is mostly used for low frequency rectification and can be found in several applications such as temperature and pressure control circuits, voltage regulators, power supplies and DC motor controllers.

Working Principle

Diodes allow the flow of current in only one direction, forming a bridge between two sources of current. In the case of SD175SA45A.T rectifier diode, electrons flow either from anode to cathode or from cathode to anode depending on the polarity of the applied voltage. When the applied voltage is positive, the diode’s N-type area - the anode - has more electrons compared to the P-type area - the cathode - and the electrons flow from the anode to the cathode. Conversely, when the applied voltage is negative, the P-type area (cathode) has more electrons and the electrons flow from the cathode to the anode.

This diode is made mostly of PN junction which acts like a one-way valve allowing the electrons to flow in only one direction at a time. The electric field causes the colliding electron-hole pairs to separate and the high concentration of electrons and holes concentrated at the depletion region ensures that electrons do not cross it in the opposite direction.

The SD175SA45A.T rectifier is a Schottky type, and it implements a special type of rectifying behavior known as the Schottky barrier. A combination of rectification PN junction and metal-semiconductor contact makes up this barrier, and the barrier lowers the turn-on voltage allowing for better switching speeds, improved power efficiency and minimized power losses due to its lower forward voltage.

To summarize, SD175SA45A.T rectifier diode is a fast switching, low power consuming burst mode rectifier which ensures the correct flow of electrons in only one direction and is appropriate for a wide variety of applications.

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