VS-UFB280FA20

The VS-UFB280FA20 is a rectifier array formed by two fast 180° commutated thyristors with an additional pair of freewheeling diodes. It has a high average current rating, a low turn-on voltage, and a low forward voltage drop.

Application Field

The VS-UFB280FA20 is suitable for applications where fast commutation, high-frequency operation, and low-cost solutions are important, such as switch-mode power supplies and motor drives. Its fast switching capability and low forward voltage drop make it ideally suited for applications that require high frequency and high efficiency. It can be used for DC-DC converters, AC inverters, and other power electronic applications.

Working Principle

When a voltage is applied between the cathode and anode, the VS-UFB280FA20 linearizes the current through the bridge and helps avoid current spikes. This reduces the losses resulting from hard switching and boosts the efficiency of the system. In addition, each of the thyristors is equipped with an additional pair of freewheeling diodes. This provides many of the same benefits as a diode, without the need for an additional diode.

The VS-UFB280FA20 also has a number of protection features built in to safeguard againstthermal runaway. These include automatic thermal shut down, temperature sensing, and current limiting. This ensures safe operation of the device and extends its lifespan significantly. In addition, the device is RoHS compliant and available in an industry standard surface mount package.

Conclusion

The VS-UFB280FA20 is a high-performance rectifier array with a series of additional protection features. It is designed to provide fast commutation, high frequency, low cost solutions, and high efficiency. With its superior protection features, the device is well suited for a wide variety of switch-mode power supplies and motor drives.