Bulletin PD-20590 rev. A 05/02 1N5818 1N5819 SCHOTTKY RECTIFIER 1.0 Amp Description/Features Major Ratings and Characteristics Characteristics 1N5818 1N5819 Units IF(AV) Rectangular 1.0 A 30/40 V Low profile, axial leaded outline IFSM @ tp = 5 s sine 225 A High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop VF @ 1 Apk, TJ = 25C 0.55 V High frequency operation TJ range - 40 to 150 C Guard ring for enhanced ruggedness and long term reliability waveform VRRM The 1N5818/ 1N5819 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. CASE STYLE AND DIMENSIONS Device Marking: 1N581X Conform to JEDEC Outline DO-204AL (DO-41) Dimensions in millimeters and inches www.irf.com 1 1N5818, 1N5819 Bulletin PD-20590 rev. A 05/02 Voltage Ratings Part number VR 1N5818 1N5819 30 40 Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters Value Units 1.0 A IF(AV) Max. Average Forward Current Conditions 50% duty cycle @ TL =90 C, rectangular wave form * See Fig. 4 IFSM Max. Peak One Cycle Non-Repetitive 225 Surge Current * See Fig. 6 35 A 5s Sine or 3s Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated V RRM applied Electrical Specifications Parameters VFM Max. Forward Voltage Drop * See Fig. 1 IRM 1N5818 1N5819 Units (1) Conditions 0.55 0.6 V 0.71 0.73 V @ 1A @ 2A 0.875 0.9 V @ 3A 0.5 0.55 V @ 1A 0.61 0.63 V @ 2A 0.77 0.79 V @ 3A Max. Reverse Leakage Current 1.0 * See Fig. 2 6.0 mA T J = 100C 12 mA T J = 125C (1) mA TJ = 25 C TJ = 125 C T J = 25C VR = rated VR CT Max. Junction Capacitance 60 pF V R = 5VDC (test signal range 100 to 1Mhz) 25C LS Typical Series Inductance 8.0 nH Measured lead to lead 5mm from pack. body 10000 V/s dv/dt Max. Voltage Rate of Change (Rated VR) (1) Pulse Width < 300s, Duty Cycle < 2% Thermal-Mechanical Specifications Value Units TJ Parameters Max. Junction Temperature Range -40 to 150 C Tstg Max. Storage Temperature Range -40 to 150 C RthJL Max. Thermal Resistance Junction to Lead (2) wt Approximate Weight Case Style 80 Conditions C/W DC operation (* See Fig. 4) 0.33(0.012) g (oz.) DO-204AL(DO-41) (2) Mounted 1 inch square PCB, thermal probe connected to lead 2mm from package 2 www.irf.com 1N5818, 1N5819 Bulletin PD-20590 rev. A 05/02 100 T J = 150C 10 1 125C 0.1 0.01 25C 0.001 0.0001 0 10 20 30 40 Reverse Voltage - V R (V) 1 Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage 100 Tj = 150C Tj = 125C Tj = 25C 0.1 0 0.2 0.4 0.6 0.8 1 1.2 Forward Voltage Drop - VFM (V) Fig. 1 - Typ. Forward Voltage Drop Characteristics Junction Capacitance - C T (pF) Instantaneous Forward Current - I F (A) Reverse Current - I R (mA) 10 T = 25C J 10 0 10 20 30 40 50 Reverse Voltage - V R (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage www.irf.com 3 1N5818, 1N5819 0.8 160 140 Average Power Loss (Watts) Allowable Lead Temperature (C) Bulletin PD-20590 rev. A 05/02 DC 120 100 80 Square wave (D = 0.50) Rated Vr applied 60 see note (3) 0.6 RMS Limit 0.4 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 DC DC 0.2 0 40 0 0.2 0.4 0.6 0.8 1 0 1.2 1.4 1.6 0.5 1 1.5 Average Forward Current - I F(AV) (A) Fig. 4 - Typ. Allowable Lead Temperature Vs. Average Forward Current Fig. 5- Forward Power Loss Characteristics 1000 Non-Repetitive Surge Current - I (A) FSM Average Forward Current - I F(AV) (A) At Any Rated Load Condition And With Rated VRRM Applied Following Surge 100 10 10 100 1000 10000 Square Wave Pulse Duration - tp (microsec) Fig. 6 - Typ . Non-Repetitive Surge Current (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); IR @ VR1 = 80% rated VR 4 www.irf.com 1N5818, 1N5819 Bulletin PD-20590 rev. A 05/02 Ordering Information Table Device Code 1N5819 TR 1 2 1N5818 = 1A, 30V 1 - Part Number 2 - TR= Tape & Reel package (5000 pcs) - 1N5819 = 1A, 40V = Box package (1000 pcs) Data and specifications subject to change without notice. This product has been designed and qualified 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