MBRF20L120CTHC0G

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MBRF20L120CTHC0G is a high current rectifiers family arising from the ultrafast diodes series, specifically designed for high frequency and ultra-high frequency switching applications, such as LLC and PFC designs. This type of rectifiers is characterized by high current and low forward voltage features and a low thermal resistance. The family of MBRF20L120CTHC0G rectifiers consists of 6 different packages, such as SOT223, D²PAK, DPAK and TO-220, thus allowing developers to choose the most convenient solution for their applications.

Applications

MBRF20L120CTHC0G rectifiers offer a wide range of applications, including PFC circuits, Relay Drives, Battery Chargers, Low EMI designs and Smart Base Station applications as well as in electric motor systems that require high frequencies of switching such as fan motors. This family of rectifiers is rated for 120A and can be used in many applications that require high current switching and frequent On Off cycles.

Working Principle

The MBRF20L120CTHC0G features a monolithic construction with two separate die within the same package. One of the dies is used as a high current rectifier while the other is used as a high speed ultra-fast diode. This combination allows the MBRF20L120CTHC0G rectifiers to switch currents of up to 120A with very little heat dissipation.

When the rectifier is switched “on”, the anode of the rectifier becomes the positive current flow terminal, while the cathode remains the reverse flow terminal. In this state, the rectifier acts as a closed switch and allows for the free flow of current through itself. When the switch is “off”, the anode is no longer the positive current flow terminal and instead, the rectifier acts as an open switch, blocking the current from flowing through it.

In terms of heat dissipation, the MBRF20L120CTHC0G rectifiers have an excellent thermal resistance. This allows them to operate at higher frequencies and reduce the output energy loss due to thermal dissipations. Additionally, due to their high current and low forward voltage features, these rectifiers have a very low voltage drop and can operate at higher frequencies, thus allowing for a faster switching speed.

Overall, the MBRF20L120CTHC0G is a great solution for applications that require high switching frequencies, high current and low heat dissipation. Their highly rated 120A current and low forward voltage features, combined with excellent thermal resistance make them one of the best solutions for many applications, such as LLC and PFC designs.

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