BU20065S-M3/45

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Diodes - Bridge Rectifiers

The BU20065S-M3/45 Bridge Rectifier is a type of diode that is used to convert alternating current (AC) to direct current (DC). It consists of four diodes arranged in a bridge configuration that produces full-wave rectification, allowing for higher speeds and efficiency than single-phase rectifiers. This makes it an ideal choice for a variety of applications from power converters to DC motor control.

The BU20065S-M3/45 operates with a maximum average forward rectified current of 45A, and a peak reverse voltage of 600V. It is available in a hermetically sealed TO-220FP package and has a high surge capability of up to 8A. It is RoHS compliant and also meets UL94 V-0 flame retardant requirements.

This bridge rectifier can be employed in a wide range of applications. It is commonly used in switch mode power supplies, DC motor control circuits, LED lighting, and automotive applications. It can be used as an efficient rectifier in AC-DC power supplies, allowing a high efficiency, high surge capability and low EMI that meets safety requirements.

The BU20065S-M3/45 Bridge Rectifier works by using the four diodes to form a bridge, which splits the AC input voltage into two equal parts. The parts then pass through the two upper and two lower diodes, respectively. Since one of the upper diodes is reverse biased and another one is forward biased, the lower two diodes together form a path for the current flowing towards the output of the rectifier. During the negative cycle of the input voltage, the process is reversed and the lower diodes form a path for the current to flow towards the output.

The halves of the AC voltage are not equal when rectified by the BU20065S-M3/45, as the peak output voltage is higher. This is due to the forward voltage drop of each diode. The forward voltage drop of the diodes is determined by the junction temperature, with higher temperatures resulting in a higher voltage drop of the diodes. The peak output voltage of the rectifier is determined by the equation Vp = Vm × (1 - D), where Vp is the peak output voltage of the rectifier, Vm is the peak input voltage, and D is the forward voltage drop of the diodes.

Overall, the BU20065S-M3/45 Bridge Rectifier is an efficient and versatile diode. It offers high surge capability, low EMI and is UL94 V-0 compliant. It is commonly used for a wide range of applications, from switch mode power supplies and DC motor control, to LED lighting and automotive applications. This makes it an ideal choice for a variety of applications, such as power converters and AC-DC power supplies.

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