Bulletin PD-20590 rev. B 11/04 1N5818 1N5819 SCHOTTKY RECTIFIER 1.0 Amp Major Ratings and Characteristics Description/Features 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. Characteristics Values 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 VF @ 1 Apk, T J = 25C 0.55 V TJ range - 40 to 150 C waveform VRRM Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability Lead-Free plating 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. B 11/04 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 50% duty cycle @ TL =90 C, rectangular wave form A 5s Sine or 3s Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated V RRM applied IF(AV) Max. Average Forward Current Conditions * See Fig. 4 IFSM Max. Peak One Cycle Non-Repetitive 225 Surge Current * See Fig. 6 35 Electrical Specifications Parameters VFM Max. Forward Voltage Drop * See Fig. 1 IRM 1N5818 1N5819 Units (1) Conditions 0.55 0.6 V @ 1A 0.71 0.73 V @ 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 Parameters Value Units TJ 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. B 11/04 100 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. B 11/04 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 V FM @ (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. B 11/04 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 and Lead-Free. 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. 11/04 www.irf.com 5