Bulletin PD-20647 rev. B 05/02 1N5820 SCHOTTKY RECTIFIER 3.0 Amp Major Ratings and Characteristics Description/ Features Characteristics 1N5820 Units IF(AV) Rectangular 3.0 A VRRM 20 V IFSM @ tp = 5 s sine 450 A 0.475 V - 65 to 150 C waveform VF @ 3 Apk, TJ = 25C TJ The 1N5820 axial leaded Schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. Low profile, axial leaded outline High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability CASE STYLE AND DIMENSIONS Outline C - 16 Dimensions in millimeters and inches www.irf.com 1 1N5820 Bulletin PD-20647 rev. B 05/02 Voltage Ratings Part number VR 1N5820 Max. DC Reverse Voltage (V) 20 VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters 1N5820 Units IF(AV) Max. Average Forward Current 3.0 A Conditions 50% duty cycle @ TL = 114 C, rectangular wave form With cooling fins IFSM Max. Peak One Cycle Non-Repetitive 450 Surge Current, @ TJ = 25C 90 A 5s Sine or 3s Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied Electrical Specifications Parameters VFM Max. Forward Voltage Drop IRM (1) Max. Reverse Leakage Current (1) CT Typical Junction Capacitance Typ. Max. Units Conditions 0.41 0.475 V @ 3A 0.49 0.85 V @ 9.4A 0.05 2.0 mA TJ = 25 C 8.1 20 mA TJ = 100 C 350 - pF VR = 5VDC (test signal range 100kHz to TJ = 25 C VR = rated VR 1Mhz), @ 25C Typical Series Inductance LS 9.0 - nH - 10000 V/ s dv/dt Max. Voltage Rate of Change Measured lead to lead 5mm from package body (Rated VR) (1) Pulse Width < 300s, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 1N5820 Units TJ Max. Junction Temperature Range (2) - 65 to 150 C Tstg Max. Storage Temperature Range C - 65 to 150 Conditions RthJL Max. Thermal Resistance Junction to Lead 34 C/W With fin 20x20 (0.79x0.79) 1.0 thick RthJA Max. Thermal Resistance Junction 80 C/W DC operation, without cooling fin to Ambient Wt Approximate Weight Case Style (2) dPtot dTj 2 < 1 Rth( j-a) 1.2 (0.042) gr (oz) C-16 thermal runaway condition for a diode on its own heatsink www.irf.com 1N5820 Bulletin PD-20647 rev. B 05/02 100 Tj = 150C Reverse Current - I R (mA) 10 125C 10 100C 1 75C 50C 0.1 25C 0.01 0.001 0 5 10 15 20 Reverse Voltage - VR (V) Fig. 2 - Typical Peak Reverse Current Vs. Reverse Voltage 1000 1 Tj = 150C Tj = 125C Tj = 25C 0.1 0 0.2 0.4 0.6 0.8 Forward Voltage Drop - V FM (V) 1 Fig. 1 - Typical Forward Voltage Drop Characteristics Tj = 25C Junction Capacitance - C T (pF) Instantaneous Forward Current - I F (A) 100 100 0 5 10 15 20 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage www.irf.com 3 1N5820 150 1.4 140 1.2 130 Allowable Power Loss (Watts) Allowable Lead Temperature (C) Bulletin PD-20647 rev. B 05/02 DC 120 110 Square wave (D = 0.5) 100 see note (2) D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 1 0.8 RMS Limit 0.6 DC 0.4 0.2 0 90 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 Average Forward Current - I F(AV) (A) Average Forward Current - I F(AV) (A) Non-Repetitive Surge Current - I FSM (A) Fig. 4 - Maximum Average Forward Current Vs. Allowable Lead Temperature Fig. 5 - Maximum Average Forward Dissipation Vs. Average Forward Current 1000 Tj = 25C 100 At Any Rated Load Condition And With Rated Vrrm Applied Following Surge 10 10 100 1000 10000 Square Wave Pulse Duration - t p (microsec) Fig. 6 - Maximum Peak Surge Forward Current Vs. Pulse Duration (2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ; Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6); PdREV = Inverse Power Loss = VR1 x IR (1 - D) 4 www.irf.com 1N5820 Bulletin PD-20647 rev. B 05/02 Ordering Information Table Device Code 1 - 2 - 1N5820 TR 1 2 Part Number: 3A, 20V TR= Tape & Reel package (1200 pcs) - = Box package (500 pcs) Data and specifications subject to change without notice. This product has been designed for Industrial Level. Qualification Standards can be found on IR's Web site. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7309 Visit us at www.irf.com for sales contact information. 05/02 www.irf.com 5