VBO125-18NO7

Series:	--
Packaging:	Bulk
Part Status:	Active
Diode Type:	Single Phase
Technology:	Standard
Voltage - Peak Reverse (Max):	1.8kV
Current - Average Rectified (Io):	124A
Voltage - Forward (Vf) (Max) @ If:	1.3V @ 150A
Current - Reverse Leakage @ Vr:	300µA @ 1800V
Operating Temperature:	-40°C ~ 150°C (TJ)
Mounting Type:	Chassis Mount
Package / Case:	PWS-C
Supplier Device Package:	PWS-C
Base Part Number:	VBO125

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Introduction

Diodes, also known as rectifiers, bridge rectifiers, semiconductors, or power elements, convert alternating current (AC) to direct current (DC) and are essential components in most electronic circuits. They are typically two-terminal devices, simple in design yet powerful in performance. The VBO125-18NO7 is a bridge rectifier used in many electronic applications. As such, it is important to understand its application field and the underlying principles behind its working.

Application Field

VBO125-18NO7 bridge rectifiers are primarily used to convert AC current to continuous DC current. Along with other typical rectifying applications, the VBO125-18NO7 is used in bridge rectifying circuits in order to convert multi-phase AC current to single-phase DC voltage; it is used in solar power systems to regulate system voltage; and it is used in resistive loads where the current flow varies. The VBO125-18NO7 is also used to provide isolation for signal integrity, prevent reverse polarity application, and to filter and regulate signal voltage.

Working Principle

Bridge rectifiers use four diodes that form the four “arms” of the bridge circuit. The two AC inputs are connected to two diagonally opposite diode pairs. When AC current flows through the circuit, the two diodes in series act as a full-wave rectifier – they will only allow current to pass through in one direction. The other two diodes, which also act as a full-wave rectifier, will allow the current flow in the opposite direction. When the polarity of the two AC inputs, across the bridge rectifier, is changed, the direction of the current flow within the diode pairs will also be reversed. Due to this operation, the voltage of the output, measured between the two end points of the bridge circuit, is independent of the polarity of the AC voltage inputs. This arrangement allows the bridge rectifier to act as a full-wave rectifier, ensuring that the DC output voltage is unaffected by the polarity of the input AC signal. This forms the basis of the VBO125-18NO7’s working principle – converting AC current to a continuous DC current output.The VBO125-18NO7 bridge rectifier is designed for high-efficiency, high-current, power applications. It is designed to handle load currents of up to 200mA, with a forward voltage drop as low as 0.57V. The bridge rectifier also offers a wide voltage range of up to 16V, providing reliable operation in a wide variety of applications.

Conclusion

The VBO125-18NO7 bridge rectifier is a versatile, efficient and reliable device used in many electronic applications. It is used to convert AC current to DC current, while providing constant voltage, even with changing polarity. The VBO125-18NO7 is a highly efficient semiconductor with low forward voltage drop, making it suitable for a range of power requirements.

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