UF5407-E3/73

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Rectifiers are electric components used to convert alternating current (AC) into direct current (DC). The UF5407-E3/73 is an example of a single rectifying diode. It is designed to sustain continuous reverse voltage of 4000V, a critical factor when selecting the right diode for any given application. This diode offers an economical solution for many designs that require a higher reverse voltage.

Application field

UF5407-E3/73 is primarily used in DC and AC power supplies. This can include switching power supplies, regulated power supplies, and gold power converters, among others. It is also suitable for all kinds of EMI/RFI, voltage multipliers, and other all-purpose applications that require around 4000V of reverse voltage.

Aside from being widely used in power supplies, the UF5407-E3/73 is also used in rectifier bridges, where it acts as a unilateral switch. This diode can also be used in high-voltage snubber circuits and converters, where it effectively helps in reducing the reverse recovery time and therefore increases the ripple voltage. It can also be used in various switching applications, such as relay switching and motor switching.

Working Principle

The UF5407-E3/73 rectifier diode works by passing current in only one direction while blocking current in the opposite direction. When the anode of the diode receives a positive voltage from the power source, free electrons move from the cathode to the anode. At the same time, a small amount of minority charge carriers, called "holes," also move from the anode to the cathode. This creates an equilibrium, allowing a current to flow.

In reverse voltage mode—i.e., in the opposite direction—minority holes move from the cathode to the anode, which acts as a barrier to the free electrons. Therefore, the current flow is effectively blocked, and the voltage waveform remains intact. This enables power supplies to use the rectifier diode to provide regulated DC output.

Conclusion

The UF5407-E3/73 is designed to sustain continuous reverse voltage of 4000V and can be used in a wide range of power supplies, rectifier bridges, snubber circuits and converters, switching applications, and other all-purpose applications. Its primary function is to convert AC voltage into DC voltage, and it works by passing current in only one direction while blocking current in the opposite direction.

The specific data is subject to PDF, and the above content is for reference