GBU8B-M3/51

Series:	--
Packaging:	Tray
Part Status:	Active
Diode Type:	Single Phase
Technology:	Standard
Voltage - Peak Reverse (Max):	100V
Current - Average Rectified (Io):	8A
Voltage - Forward (Vf) (Max) @ If:	1V @ 8A
Current - Reverse Leakage @ Vr:	5µA @ 100V
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	4-SIP, GBU
Supplier Device Package:	GBU

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Diodes - Bridge Rectifiers The GBU8B-M3/51 is an electronic component that is used for inverse current protection and power rectification. It is part of the general category of “bridge rectifiers” and is capable of withstanding high voltage and high current application. In this article, we will look at its application field and working principles in detail.Application FieldThe GBU8B-M3/51 is a four-terminal bridge rectifier diode, and is used primarily as an inverse current protection and power rectification device. It can be used in switch mode power supplies (SMPS), motor control circuits, renewable energy systems, electric vehicle (EV) charger, Uninterruptible Power Supply (UPS), electric equipment, and other similar applications that require a high level of current protection and power rectification.The GBU8B-M3/51 is designed to withstand operating voltages up to 800V and currents of up to 10A. This makes it suitable for use in high voltage and high current applications. It is also designed with a wide temperature range and can operate from -55°C to +150°C. Working PrinciplesThe GBU8B-M3/51 is a four-terminal bridge rectifier diode. It consists of four individual diodes connected in an arrangement referred to as a “Wheatstone Bridge”. The four terminals on the device are referred to as anodes and cathodes and they are labeled in pairs: A1 and A2 (anodes), and C1 and C2 (cathodes). When voltage is applied to the GBU8B-M3/51, it will allow current to flow through the device in one direction. When reverted, current will flow in the other direction and will be blocked, thus serving as an inverse current protection device and rectifying the power supply.The Wheatstone Bridge arrangement combined with the diodes also allows for higher level current protection when compared to other solutions. The effect of this is a power supply that is both current and voltage regulated. This is because the four diodes in the Bridge Rectifier can “cut off” the current when a certain level is surpassed, thus preventing the power supply from going beyond the predefined parameters.The GBU8B-M3/51 is also designed for high frequency operation and can switch up to 1 MHz. This means that it is suitable for fast switching, which is often needed in high current applications.ConclusionThe GBU8B-M3/51 is a four-terminal bridge rectifier diode, which is used in inverse current protection and power rectification applications. This includes switch mode power supplies, motor control circuits, renewable energy systems, electric vehicle chargers, Uninterruptible Power Supply, and electric equipment. It can withstand operating voltages up to 800V and currents up to 10A and can also operate in temperatures ranging from -55°C to +150°C. The Wheatstone bridge arrangement allows for higher level current protection and the device can switch at 1MHz, providing fast and efficient operation.

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