RB551V-30 ROHM | Alldatasheet
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!!!!Applications High-frequency rectification Switching regulators !!!!Features 1) Small surface mounting type. (UMD2) 2) Ultra low VF. (V F =0.41V Typ. at 0.5A) 3) High reliability. !!!!Construction Silicon epitaxial planar !!!!External dimensions (Units : mm) ROHM : UMD2 EIAJ : SC-76 JEDEC : SOD-323 2.5±0.2 1.7±0.1 1.25±0.1 CATHODE MARK −0.1 +0.20.7 +0.1 −0.050.10.3±0.05 D 2.5±0.2 1.7±0.1 1.25±0.1 CATHODE MARK −0.1 +0.20.7 +0.1 −0.050.10.3±0.05 D ∗There are two different markings. !!!!Absolute maximum ratings (Ta = 25°C) Parameter Symbol Limits Unit Peak reverse voltage VRM V DC reverse voltage VR V Mean rectifying current IO 0.5 A Peak forward surge current∗ 2A 125 °C Storage temperature °C Junction temperature IFSM −40~+125 Tj Tstg ∗ 60Hz for 1 !!!!Electrical characteristics (Ta = 25°C) Parameter Symbol Min. Typ. Max. Unit Conditions Forward voltage VF1 − 0.36 V I F = 100mA VF2 − 0.47 V I F = 500mA Reverse current −− 100 µAV R = 20VIR
!!!!Electrical characteristic curves (T a = 25°C) 0.0 100µ 10m 100mIF (A) VF (V) 10A 25˚C −25˚C 75˚C 125˚C Fig.1 Forward characteristics IR (A) VR (V) 100n 10µ 100µ 10m 100m 4010 20 30 25˚C −25˚C 75˚C 125˚C Fig.2 Reverse characteristics 0.0 10.0 1.0 100.0 10.0 20.0 30.0 40.0 Ct (pF) VR (V) 1000.0 Fig.3 Capacitance between terminals characteristics 0.5 1.0 50 75 100 150 Io (A) Fig.4 Derating curve 25 125 Ta (°C)