MBR3045PT-E3/45

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Introduction to MBR3045PT-E3/45 Diodes - Rectifiers - Arrays

MBR3045PT-E3/45 diode is a reverse polarity, four-terminal diode device that offers a total package width of only 5.1mm (0.2”) and requires only 1.2A of peak pulsed current. It is designed to be a general-purpose three-phase rectifier, but can also be used for motor control, voltage step-up and energy storage applications. The MBR3045PT-E3/45 is the smallest and most efficient rectifier available in the market.

Application

The MBR3045PT-E3/45 diode is suitable for use in a variety of power conversion applications, such as three-phase inverters and motor drives, step-up DC/DC converters, voltage multipliers, resonant converters and power supplies. Its high-switching frequency and low package size is perfect for space-constrained, high-power applications. The device’s dynamic on-resistance and surge-current capability is well-suited for boost and buck-boost converter topologies in high-current applications.

Other applications include load switching, snubber circuits, bridge rectification and circuit protection. The MBR3045PT-E3/45 is compliant to the RoHS and ELV directives, as well as AEC-Q101 standards and is suitable for use in automotive, consumer, industrial and other harsh environmental conditions.

Working Principle

The MBR3045PT-E3/45 diode employs a two-terminal MOSFET-based structure, wherein the two terminals are the anode and cathode. When the circuit is connected to an external power source, the anode will become positive with respect to the cathode. This voltage difference between the anode and cathode causes the MOSFET to turn on, thereby initiating the conduction of current. When the diode is not in use, the MOSFET will turn off, preventing any current flow.

The MOSFET within the diode is specially designed to have both a high-switching frequency and low conduction losses. By utilizing a MOSFET-based structure, the MBR3045PT-E3/45 is able to process large peak-pulsed currents of up to 1.2A and operate at high switching frequencies of up to 500kHz. This design is also suitable for applications that require high voltage rating, such as snubber circuits and high-voltage switching applications.

The MBR3045PT-E3/45 also features an improved thermal design that reduces power dissipation by 30%, thereby increasing efficiency and reliability. This is in addition to its improved high-temperature plastic package and bottom-side cooling for superior temperature performance. The increased thermal spread further enhances the temperature stability and power dissipation.

Conclusion

The MBR3045PT-E3/45 diode offers a wide range of features and benefits, making it an ideal choice for three-phase rectification, motor control, voltage step-up/down, load switching, bridge rectification and snubber circuit conduction. Its high-switching frequencies, low conduction losses and improved thermal design make it an attractive choice for space-constrained, high-current applications. The MBR3045PT-E3/45 is compliant to the RoHS and ELV directives and is suitable for operation in harsh environmental conditions.

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