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Diodes - Bridge Rectifiers

A bridge rectifier is a diode circuit configuration consisting of four or more diodes. With four diodes, it takes an incoming AC ("alternating current") input and converts it to DC ("direct current") output. The circuit comprises of four diodes arranged in a closed loop shape providing two outputs from the four diodes. The output from the bridge rectifier can either be unbuffered or buffered. The four diodes are connected to form a closed loop so that the current can flow in either direction alternatively.

The four diodes are arranged in two pairs of ‘anti-parallel’ diodes. Each pair shares a common terminal. In this arrangement of four diodes, two diodes conduct in one direction, while two diodes conduct in the opposite direction, allowing the current to be converted from AC to DC power.

The GBU2502-G, commonly known as a bridge rectifier, is a general purpose diode array designed for use in applications such as power supplies, motor controls, AC/DC wall plugs, and AC/DC adapters. This type of bridge rectifier is mostly used for AC to DC power conversion. It can also be used for high voltage applications such as voltage regulation and protection circuits. The GBU2502-G bridge rectifier provides both steady-state and transient protection in addition to reverse-bias protection and EMI/RFI noise suppression.

The GBU2502-G has three different modes of operation: forward conduction, reverse conduction, and dynamic coupling. In forward conduction, the GBU2502-G behaves like a standard diode, allowing current to flow in the direction of the arrow on the package only. In reverse conduction, the GBU2502-G blocks current in the opposite direction of the arrow, preventing damaging reverse current. The dynamic coupling mode is used when the voltage shifts between forward and reverse direction, so that the GBU2502-G can switch between conducting and non-conducting depending on the voltage.

The GBU2502-G can handle high voltage AC and low voltage DC circuits, ranging from 3 to 600 Volts and can handle up to 1.3 Amps of continuous current. This makes the GBU2502-G an ideal choice for applications in a variety of environments and applications, including those in cars, appliances, electronic equipment, and automotive components.

In terms of safety, the GBU2502-G has a built-in fuse that will break the circuit if the input current exceeds the rated capacity. Additionally, the GBU2502-G is UL recognized, RoHS compliant, and meets all applicable other industry standards. As a result, the GBU2502-G bridge rectifier can be used for a wide range of applications.

Overall, the GBU2502-G is a great choice for a wide range of AC-DC or DC-DC conversion applications. It is robust, reliable, and provides excellent protection against reverse current and EMI/RFI noise. Its ability to handle high voltage and current makes it an ideal option for a variety of uses.

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