LESHAN RADIO COMPANY, LTD. Schottky barrier diode LRB491DLT1G LRB491DLT1G zApplications 1) Low-power rectification 2) For switching power supply 3 1 zFeatures 2 1) Small mold type. (SO T-23) 2) Ultra low VF. (VF=0.40V Typ. at 1A) 3) IF=1.0A guaranteed despite the size. SOT– 23 zConstruction Silicon epitaxial planar 3 CATHODE 1 ANODE z We declare that the material of product compliance with RoHS requirements. zAbsolute maximum ratings (Ta = 25°C) Parameter Symbol Limits Unit 25 V Peak reverse voltage VRM DC reverse voltage VR 20 V DC forward current IF 1.0 A ∗IFSM 3 A Junction temperature Tj 125 ˚C Storage temperature Tstg −40∼+125 ˚C Peak forward surge current ∗ 60Hz for 1 zElectrical characteristics (Ta = 25°C) Symbol Min. Typ. Max. Forward voltage VF − − 0.45 V IF=1.0A Reverse current IR − − 200 µA VR=20V Parameter Unit Conditions Note) ESD sensitive product handling required. z Device marking and ordering information Device Marking Shipping LRB491DLT1G D2E 3000/Tape&Reel LRB491DLT3G D2E 10000/Tape&Reel Rev.O 1/3 LESHAN RADIO COMPANY, LTD. LRB491DLT1G Electrical characteristic curves (Ta = 25°C) 10000 1000 10 10m 1m 0.1 0.2 0.3 0.4 0.5 10 75˚C 1 25˚C 100µ 10µ −25˚C 1µ 10 20 30 40 50 60 70 Fig.1 Forward characteristics Fig.2 Reversecharacteristics DC 0.6 D=0.5 sine D=0.3 0.5 D=0.2 D=0.1 0.4 D=0.05 0.3 IF 0.2 IO Tp T D=Tp/T Tj=Tj Max. 0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 AVERAGE RECTIFIED FORWARD CURRENT : IO (A) Fig.4 Forward power dissipation characteristics AVERAGE RECTIFIED FORWARD CURRENT : IO (A) REVERSE VOLTAGE : VR (V) D=0.8 1000 100 10 1 0 5 10 15 20 25 30 35 40 REVERSE VOLTAGE : VR (V) FORWARD VOLTAGE : VF (V) 0.7 0 0 Ta=125˚C 0.1µ 0 0.6 TERMINAL CAPACITANCE : CT (pF) ˚C 25 −25 75 ˚C 5˚ C ˚C 100m 0.1m 0 FORWARD POWER DISSIPATION : PF (W) REVERSE CURRENT : IR (mA) 1 Ta= 12 FORWARD CURRENT : IF (A) f=1MHz 100 Fig.3 Capacitance between terminals characteristics 1.5 IF IO DC D=0.8 Tp T D=Tp/T VR=V RM /2 sine 1.0 D=0.5 D=0.3 D=0.2 0.5 D=0.1 D=0.05 0 0 25 50 75 100 125 AMBIENT TEMPERATURE : Ta (˚C) Fig.5 Derating curve (IO - Ta) Rev.O 2/3 LESHAN RADIO COMPANY, LTD. LRB491DLT1G SOT-23 NOTES: A 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. L 3 1 V 2 B S DIM G A B C D G H J K L S V C D H K J INCHES MIN MAX 0.1102 0.1197 0.0472 0.0551 0.0350 0.0440 0.0150 0.0200 0.0701 0.0807 0.0005 0.0040 0.0034 0.0070 0.0140 0.0285 0.0350 0.0401 0.0830 0.1039 0.0177 0.0236 MILLIMETERS MIN MAX 2.80 3.04 1.20 1.40 0.89 1.11 0.37 0.50 1.78 2.04 0.013 0.100 0.085 0.177 0.35 0.69 0.89 1.02 2.10 2.64 0.45 0.60 PIN 1. ANODE 2. NO CONNECTION 3. CATHODE 0.037 0.95 0.037 0.95 0.079 2.0 0.035 0.9 0.031 0.8 inches mm Rev.O 3/3