Bulletin PD-20646 rev. B 05/02 1N5817 SCHOTTKY RECTIFIER 1.0 Amp Major Ratings and Characteristics Description/Features Characteristics 1N5817 Units IF(AV) Rectangular 1.0 A VRRM 20 V IFSM @ tp = 5 s sine 240 A VF @ 1 Apk, TJ = 25C 0.45 V TJ range - 65 to 150 C waveform The 1N5817 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 Conform to JEDEC Outline DO-204AL (DO-41) Dimensions in millimeters and inches www.irf.com 1 1N5817 Bulletin PD-20646 rev. B 05/02 Voltage Ratings Part number VR 1N5817 Max. DC Reverse Voltage (V) 20 VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters 1N5817 Units IF(AV) Max. Average Forward Current 1.0 IFSM 240 Max. Peak One Cycle Non-Repetitive Surge Current, @ TJ = 25C A A 40 Conditions 50% duty cycle @ TL = 138 C, rectangular wave form 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) Typ. Max. Units 0.42 0.45 V @ 1A 0.50 0.75 V @ 3A 0.012 1.0 mA TJ = 25 C 2.0 10 mA TJ = 100 C VR = 5VDC (test signal range 100kHz to CT Typical Junction Capacitance 110 - pF LS Typical Series Inductance 8.0 - nH - 10000 V/ s Conditions TJ = 25 C VR = rated VR 1Mhz), @ 25C 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 1N5817 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 32 C/W DC operation, Lead lenght = 1/8 inch. RthJA Max. Thermal Resistance Junction 100 C/W DC operation, without cooling fin to Ambient Wt Approximate Weight 0.33(0.012) gr (oz) Case Style DO-204AL (DO-41) (2) dPtot dTj 2 < 1 Rth( j-a) thermal runaway condition for a diode on its own heatsink www.irf.com 1N5817 Bulletin PD-20646 rev. B 05/02 100 Reverse Current - I R (mA) 100 10 Tj = 150C 125C 100C 1 75C 0.1 50C 0.01 25C 10 0.0001 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 Junction Capacitance - C T (pF) Instantaneous Forward Current - I F (A) 0.001 Tj = 25C 100 10 0 5 10 15 20 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage www.irf.com 3 1N5817 Bulletin PD-20646 rev. B 05/02 0.5 Allowable Power Loss (Watts) Allowable Lead Temperature (C) 150 145 DC 140 Square wave (D = 0.5) 135 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 0.4 0.3 RMS Limit 0.2 DC 0.1 see note (2) 130 0 0 0.4 0.8 1.2 1.6 0 Average Forward Current - I F(AV) (A) 0.8 1.2 1.6 Average Forward Current - I F(AV) (A) Fig. 4 - Maximum Average Forward Current Vs. Allowable Lead Temperature Non-Repetitive Surge Current - I FSM (A) 0.4 Fig. 5 - Maximum Average Forward Dissipation Vs. Average Forward Current 1000 100 Tj = 25C 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 1N5817 Bulletin PD-20646 rev. B 05/02 Ordering Information Table Device Code 1N5817 TR 1 2 1 - Part Number:1A, 20V 2 - TR= Tape & Reel package (5000 pcs) - = Box package (1000 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