Schottky Barrier Rectifier DSTF4050C, 2x20A, 50V, ITO-220AB, Common Cathode RoHS Pb DSTF4050C 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 lo w forward voltage Guard ring f or 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 Switching mode power F ree-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 - 50 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 250 A FSM Current (per leg) Electrical Characteristics Parameters Symbol Test Conditions Typ Max Unit 10A, Pulse, T = 25 C 0.45 - J V F1 20A, Pulse, T = 25 C 0.53 0.60 J Forward Voltage Drop (per leg) * V 10A, Pulse, T = 125 C 0.38 - J V F2 20A, Pulse, T = 125 C 0.50 0.55 J I V = rated V T = 25 C 0.02 1 R1 R R J Reverse Current (per leg) * mA I V = rated V T = 125 C 14 150 R2 R R J * Pulse Width < 300s, Duty Cycle <2% 2016 Littelfuse, Inc Specifications are subject to change without notice. Revised:02/03/16Schottky Barrier Rectifier DSTF4050C, 2x20A, 50V, 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