UGB8HT-E3/81

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Diodes - Rectifiers - Single - UGB8HT-E3/81 Application Field and Working Principle

The UGB8HT-E3/81 is a Single Chip Rectifier that is available in both Through Hole and Surface Mount form factors. It belongs to a series of diodes by STMicroelectronics which has been used in several industries, from automotive to home appliances.

In general, a diode is an electronic device that allows current to flow in one direction but blocks it in the opposite. It is composed by two terminals, Anode (positive) and Cathode (negative). The main purpose of it is to ensure the current flow only in the wanted direction and it is present in a variety of digital and analog circuits.

The UGB8HT-E3/81 belongs to the single rectifier series which is designed to withstand a maximum peak reverse voltage of 50 Volts (V). It has a low forward voltage drop of 1.0 V and a maximum average forward current rating of 8 Amperes (A). Additionally, it is capable of emitting a maximum peak reverse current of 10 µA, which is very low for a rectifier.

The UGB8HT-E3/81 is primarily used in automotive lighting, such as headlights and tail-lights, and it can be also found in other applications such as home appliances and converters. Thanks to its low voltage drop, it can be used to convert varying levels of AC current into a stable DC current.

The working principle of the single rectifier series is quite simple. When there is a positive voltage applied to the anode terminal and a negative to the cathode one, the small amount of current that is required to activate the diode is flowing, allowing the voltage to go across the junction and power the circuit. As soon as the applied voltage is no longer sufficient, the diode goes in the reverse direction and blocks current from moving in the unwanted direction.

To sum up, the UGB8HT-E3/81 is a Single Chip Rectifier that belongs to a series of diodes by STMicroelectronics and is used for applications such as automotive lighting, home appliances and converters. Its working principle is based on a simple two-terminal model where it allows current to flow in one direction and block it in the opposite, thus providing a stable power supply and avoiding any potential damage due to reverse flow.

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