USD550

The USD550 is designed as one kind of schottky barrier power rectifiers which is ideally suited for output rectifiers and catch diodes in low voltage power supplies. The microsemi high conductivity design, using a heavy copper top post and 4 point crimp. ensures cool thermal operation and low dynamic impedance.

USD550 has eight features. (1)Very low forward voltage (0.6V at 60A, 125°C). (2)Low recovered charge. (3)Rugged package design DO-5. (4)High efficiency for low voltage supplies. (5)Low thermal resistance 0.8°C/W. (6)High surge current 1000A. (7)Low reverse current <50mA rated Vr at 125°C. (8)Available with flexible top lead. Those are all the main features.

Some absolute maximum ratings of USD550 have been concluded into several points as follow. (1)Its working peak reverse voltage would be 50V. (2)Its DC blocking voltage would be 50V. (3)Its peak repetitive surge voltage would be 60V. (4)Its peak repetitive forward current (rated Vr, square wave, 20KHz, 50 percent duty cycly) would be 150A. (5)Its average rectified forward current would be 75A. (6)Its non-repetified peak surge current 8.3ms would be 1000A. (7)Its storage temperature range would be from -55°C to 200°C. (8)Its operating junction temperature would be 175°C. (9)Its thermal resistance junction to case would be 0.8°C/W. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of USD550 are concluded as follow. (1)Its Its maximum instantaneous reverse current would be 20mA. (2)Its maximum instantaneous forward voltage would be 0.5V at If=10A, Tc=25°C and would be 0.68V at If=60A, Tc=25°C and would be 0.60V at If=60A, Tc=125°C. (3)Its flexible top lead option would be 0.63V. (4)Its maximum capacitance would be 4000pF. (5)Its maximum voltage rate of charge would be 1000V/us. And so on. If you have any question or suggestion or want to know more information of USD550 please contact us for details. Thank you!