View mbrd320 datasheet:

Bulletin PD-20756 rev. B 02/02 MBRD320 MBRD330 MBRD340 3.0 Amp SCHOTTKY RECTIFIER D-Pak (TO-252AA) Major Ratings and Characteristics Description/Features The MBRD320, MBRD330, MBRD340 surface mount Schottky Characteristics Value Units rectifier has been designed for applications requiring low forward drop and small foot prints on PC board. Typical applications are IF(AV) Rectangular 3.0 A in disk drives, switching power supplies, converters, free- waveform wheeling diodes, battery charging, and reverse battery protection. VRRM 20 - 30 - 40 V Popular D-PAK outline IFSM @ tp = 5 µs sine 490 A Small foot print, surface mountable Low forward voltage drop VF @ 3 Apk, TJ = 125°C 0.49 V High frequency operation Guard ring for enhanced ruggedness and long term reliability T