Schottky Barrier Rectifier DSTF4045C, 2x 20A, 45V, ITO-220AB, Common Cathode DSTF4045C RoHS Pb Description Littelfuse DST series Ultra Low VF Schottky Barrier Rectifier is designed to meet the general requirements of commercial and industry applications by providing high temperature, low leakage and lower VF products. It is suitable for high frequency switching mode power supply, free-wheeling diodes and polarity protection diodes. Pin out Heat sink on e Features Common Cathode • U ltra low forward voltage drop • High frequency operation 3 ode K e 1 3 2 1 Anode Common Anode Cathode 2 • H igh junction temperature capability 3 Anode Common Anode Cathode Pinout 2 TO-220AB Common Cathode • G uard ring for enhanced ruggedness and long term reliability • C ommon cathode configuration in ITO220AB package Applications Pinout 3 ITO-220AB Common Cathode • S witching mode power supply • Free-Wheeling diodes • Polarity Protection Diodes • DC/DC converters Heat sink MaximumCathode Ratings Cathode 3 Parameters Symbol Test Conditions Max Unit Peak Inverse Voltage VRWM - 45 V IF(AV) 50% duty cycle @TC =90°C rectangular wave form 20 (per leg) 40 (total device) IFSM 8.3 ms, half Sine pulse 240 Symbol Test Conditions @5A, Pulse, TJ = 25 °C 0.41 0.47 VF1 @10A, Pulse, TJ = 25 °C 0.46 0.52 @20A, Pulse, TJ = 25 °C 0.53 0.58 @5A, Pulse, TJ = 125 °C 0.31 - Cathode 1 Anode 2 Average Forward Current Pinout 5 Peak TO-220AC One Cycle Non-Repetitive Surge Current (per leg) A A Electrical Characteristics Parameters Forward Voltage Drop (per leg) * VF2 Reverse Current (per leg) * Junction Capacitance (per leg) * Pulse Width < 300μs, Duty Cycle <2% Typ Max @10A, Pulse, TJ = 125 °C 0.39 @20A, Pulse, TJ = 125 °C 0.51 - IR1 @VR = rated VR TJ = 25 °C 0.028 3.0 IR2 @VR = rated VR TJ = 125 °C 14 150 CT @VR = 5V, TC = 25 °C, fSIG = 1MHz 840 - Unit V mA pF ©2016 Littelfuse, Inc Specifications are subject to change without notice. Revised:02/03/16 Schottky Barrier Rectifier DSTF4045C, 2x 20A, 45V, ITO-220AB, Common Cathode Thermal-Mechanical Specifications Parameters Symbol Test Conditions Max Unit Junction Temperature TJ -55 to +150 °C Storage Temperature Tstg -55 to +150 °C Thermal Resistance Junction to Case (per leg) RthJC 5.0 °C/W Approximate Weight wt 2 g Case Style DC operation ITO-220AB Figure 1: Typical Forward Characteristics Figure 2: Typical Reverse Characteristics ºC ºC ºC ºC Figure 3: Typical Junction Capacitance ºC ©2016 Littelfuse, Inc Specifications are subject to change without notice. Revised:02/03/16 Schottky Barrier Rectifier DSTF4045C, 2x 20A, 45V, ITO-220AB, Common Cathode Dimensions- ITO-220AB Symbol Millimeters Min Typ Max A 4.30 4.50 4.70 A1 1.10 1.30 1.50 A2 2.80 3.00 3.20 A3 2.50 2.70 2.90 b 0.50 0.60 0.75 b1 1.10 1.20 1.35 b2 1.50 1.60 1.75 b3 1.20 1.30 1.45 b4 1.60 1.70 1.85 c 0.55 0.60 0.75 D 14.80 15.00 15.20 E 9.96 10.16 10.36 2.55 e 5.10 e1 H1 6.50 6.70 6.90 L 12.70 13.20 13.70 2.00 L1 1.60 1.80 L2 0.80 1.00 1.20 L3 0.60 0.80 1.00 øP1 øP2 3.30 3.50 3.70 2.99 3.19 3.39 Q 2.50 2.70 2.90 θ1 θ2 θ3 θ4 θ5 Packing Options 5° 4° 10° 5° 5° Part Numbering and Marking System Part Number Marking Packing Mode M.O.Q DSTF4045C DSTF4045C 50pcs / Tube 1000 DSTF4045C 6 Tube Specification LF YYWWL PP DST F 40 45 C LF YY WW L = Device Type = Package type = Forward Current (40A) = Reverse Voltage (45V) = Configuration = Littelfuse = Year = Week = Lot Number PP PP ©2016 Littelfuse, Inc Specifications are subject to change without notice. Revised:02/03/16