MBRH30045L

Diodes - Rectifiers - Single

The MBRH30045L is a single-phase, 45A fast-recovery rectifier diode module. It is a high-current bridge diode module designed for application in high power, high frequency DC-DC converters, and AC-DC switch mode power supplies. This component serves as a rectifier for driving high power inductive loads. It is composed of four fast-recovery rectifier diodes with a soft-recovery feature.

Application Field

The MBRH30045L can be applied in a number of applications including high-power AC-DC converters, switch mode power supplies, and uninterruptable power systems (UPS). It can be used in DC-DC converters used to power embedded systems such as microprocessors as well as solar power systems and telecom equipment. It is highly suited to applications where fast switching and high power density are required.

Working Principle

The MBRH30045L operates on the principle of rectification, a process wherein alternating current (AC) is converted into direct current (DC) by allowing current to flow in only one direction. This is accomplished by two sets of diodes connected in anti-parallel arrangement. The four individual diodes have a fast-recovery feature that minimizes Reverse Recovery Time (tRR), enabling high power, high frequency switching with improved system performance. The four diodes are also capable of handling high transient surge current, with a maximum surge rating of 240A.

Advantages

The MBRH30045L offers several advantages when compared to traditional rectifier diodes. Its soft-recovery feature ensures superior efficiency by reducing energy losses in the reverse conduction process. Its fast-recovery feature improves system performance by allowing more rapid switching. In addition, its high heat dissipation and low thermal resistance makes it suitable for high-power applications with minimal need for additional cooling. Finally, its low dropout voltage ensures improved DC stability and ripple free output.

Conclusion

The MBRH30045L is an advanced, fast-recovery single-phase rectifier diode module. It is highly suited to applications such as AC-DC converters, switch mode power supplies, and UPS systems that require fast switching and high power density. Its fast-recovery feature, high heat dissipation and low dropout voltage offers superior efficiency and improved system performance. It is a highly reliable and versatile component suitable for a variety of high-power applications.