Schottky Barrier Rectifier DSTF4045C, 2x 20A, 45V, ITO-220AB, Common Cathode RoHS Pb DSTF4045C Description Littelfuse DST series Ultra Low V Schottky Barrier F Rectifier is designed to meet the general requirements of commercial and industry applications by providing high temperature, low leakage and lower V products. F It is suitable for high frequency switching mode power supply, free-wheeling diodes and polarity protection diodes. Pin out Features Heat sink Heat sink Common Common Ultra low forward voltage Guard ring for enhanced Cathode Cathode drop ruggedness and long term reliability High frequency operation Common cathode High junction configuration in ITO- 1 3 1 3 2 1 2 3 temperature capability Common 220AB package Anod e Anode Anode Anode Common Anode Anode Cathode Cathode Pinout 1 Pinout 2 D2-PAK & D-PAK TO-220AB Common Cathode Applications Common Cathode Pinout 3 ITO-220AB S witching mode power Free-Wheeling diodes Common Cathode supply Polarity Protection Diodes DC/DC con verters Heat sink Catho de Maximum Ratings Common Catho de Catho de Anod e Parameters Symbol Test Conditions Max Unit 1 3 2 Catho de Anode Peak Inverse Voltage V - 45 V RWM 1 2 Pinout 4 50% duty cycle T =90C 20 (per leg) C ITO-220AB Average Forward Current I A F(AV) rectangular wave form 40 (total device) Pinout 5 Common Anode TO-220AC Peak One Cycle Non-Repetitive Surge I 8.3 ms, half Sine pulse 240 A FSM Current (per leg) Electrical Characteristics Parameters Symbol Test Conditions Typ Max Unit 5A, Pulse, T = 25 C 0.41 0.47 J V 10A, Pulse, T = 25 C 0.46 0.52 F1 J 20A, Pulse, T = 25 C 0.53 0.58 J Forward Voltage Drop (per leg) * V 5A, Pulse, T = 125 C 0.31 - J V 10A, Pulse, T = 125 C 0.39 - F2 J 20A, Pulse, T = 125 C 0.51 - J I V = rated V T = 25 C 0.028 3.0 R1 R R J Reverse Current (per leg) * mA I V = rated V T = 125 C 14 150 R2 R R J Junction Capacitance (per leg) C V = 5V, T = 25 C, f = 1MHz 840 - pF T R C SIG * Pulse Width < 300s, Duty Cycle <2% 2016 Littelfuse, Inc Specifications are subject to change without notice. Revised:02/03/16Schottky Barrier Rectifier DSTF4045C, 2x 20A, 45V, ITO-220AB, Common Cathode Thermal-Mechanical Specifications Parameters Symbol Test Conditions Max Unit Junction Temperature T -55 to +150 C J Storage Temperature T -55 to +150 C stg Thermal Resistance Junction to R DC operation 5.0 C/W thJC Case (per leg) Approximate Weight wt 2 g Case Style ITO-220AB Figure 1: Typical Forward Characteristics Figure 2: T ypical Reverse Characteristics C C C C Figure 3: Typical Junction Capacitance C 2016 Littelfuse, Inc Specifications are subject to change without notice. Revised:02/03/16