UG6KB100TB

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Diodes - Bridge Rectifiers, such as the UG6KB100TB, are used to convert alternating current (AC) to direct current (DC). In their simplest form, they are composed of four junction diodes arranged in what is called a "bridge" configuration. The bridge rectifier is able to provide full-wave, bi-directional rectification, which means the device will convert AC signals to DC signals, no matter the orientation of the AC input signal.

The UG6KB100TB bridge rectifier is composed of four ultralow VF diodes contained in SMD plastic packages, such as the SOD-323 case. It is a high-reliability product, with a high power dissipation, wide temperature range and 100 volt peak inverse voltage. The UG6KB100TB is used in a variety of applications, including automotive systems, power supplies, LED lighting and more.

To understand the working principle of the bridge rectifier, consider an AC source connected to the terminals A and B in the bridge configuration. During the positive half cycle of effective applied voltage, the diode D1 conducts, while the diode D3 and the two remaining diodes remain open. During this period, a current I flows in the external load as full output voltage of the source is applied to the terminals. On the other hand, during the negative half cycle of effective applied voltage, the diode D2 conducts, while the remaining three diodes remain open. During this cycle, the current I reverses its direction and flows in the same direction as before. That is, the same external load receives a current I but with a reversed direction. This makes the bridge rectifier a synonym of full-wave rectifier aimed at applications such as power supplies.

A particular feature of a bridge rectifier, compared to a full-wave center-tapped rectifier, is the unburdened load it offers to the power sources. In full-wave center-tapped rectifiers, the load should be realized with the same impedance offered by the secondary winding of the center-tapped transformer. Otherwise, the transformer current flowing through the center-tap will be low, and secondary voltage will be divided unevenly. In bridge rectifier circuits, this impedances are relaxed, and do not require a balanced winding. Thus, the output of the rectifier is full maximum voltage provided by the power source.

Overall, the UG6KB100TB bridge rectifier is an ideal component for a variety of applications which require both full-wave and bi-directional rectification of AC signals to DC. This component is perfect for applications or systems that require a wide temperature range and 100 volt peak inverse voltage. Automotive systems, power supplies, and LED lighting are just some of the many uses for this reliable component.

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