UG4C-E3/73

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The UG4C-E3/73 (referred to as the UG4C) is a single, unidirectional, symmetrical rectifier diode used in AC - to - DC rectification applications. It is typically used for AC line and battery charging rectification purposes. It features a low-stress series design and is suitable for high current pulse applications.

The UG4C package is a leaded, low-profile TO-220-2L design with a built-in strain relief for fast assembly and reliable operation. The UG4C is suitable for high frequency rectification, low forward voltage drop operation, and can operate up to 200°C ambient temperature. The UG4C is readily available in various currents from 1A to 3A.

The UG4C has a forward voltage drop of 1.2V @ 1A, and a peak forward surge current rating of 30A.

It is an ideal choice for rectification and line voltage regulation applications. It works very well in magnetic amplifier applications and other current controlled applications. It is also used in full-wave rectification, half-wave rectification, and flyback transformer applications. It can be used in applications such as photovoltaic solar cell or battery charger systems.

The UG4C consists of two PN semiconductor junctions that are connected in a symmetric, back-to-back configuration. When a DC voltage is applied in one direction across the two terminals, a forward voltage drop of 1.2V occurs between the anode and cathode. This forward voltage drop creates a barrier that prevents current from flowing in the opposite direction.

When an AC voltage is applied across the two terminals, diodes rectify the AC voltage by allowing current to flow in one direction and blocking current from flowing in the other direction. The forward voltage drop acts as a clamping mechanism to prevent current from exceeding the threshold set by the maximum forward voltage drop. This ensures that the current will not exceed the rated ratings of the device. The UG4C is designed to have a fast recovery time for quick switching operation.

The UG4C is ideal for use in power supplies, voltage regulators, and UPS systems. It is a reliable, cost-effective device for AC – to – DC rectification applications requiring high current pulses. The low forward voltage drop of the UG4C ensures low power consumption and high efficiency. The UG4C is a great choice for power conversion applications that require high current and low power loss.

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