Bulletin PD-20806 11/05 31DQ09G 31DQ10G SCHOTTKY RECTIFIER 3.3 Amp IF(AV) = 3.3 Amp VR = 90 - 100V Major Ratings and Characteristics Description/ Features Characteristics Values Units IF(AV) Rectangular waveform 3.3 A 90 - 100 V IFSM @ tp = 5 s sine 370 A VF 0.85 V - 40 to 150 C VRRM @ 3 Apk, TJ = 25C TJ The 31DQ..G 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 31DQ09G, 31DQ10G Bulletin PD-20806 11/05 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 31DQ09G 31DQ10G 90 100 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current 31DQ.. Units 3.3 A Conditions 50% duty cycle @ TC = 53.4C, rectangular wave form * See Fig. 4 IFSM Max. Peak One Cycle Non-Repetitive 370 Surge Current * See Fig. 6, TJ = 25C 60 5s Sine or 3s Rect. pulse EAS Non-Repetitive Avalanche Energy 3.0 mJ IAR Repetitive Avalanche Current 0.5 A Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied A TJ = 25 C, I AS = 1.0 Amps, 18 s square pulse Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM IRM 31DQ.. Units Max. Forward Voltage Drop * See Fig. 1 (1) Max. Reverse Leakage Current * See Fig. 2 (1) V V @ 3A @ 6A 0.69 V @ 3A 0.80 V @ 6A 0.1 mA TJ = 25 C 3 mA TJ = 125 C VR = 5VDC (test signal range 100Khz to 1Mhz) 25C CT Typical Junction Capacitance 110 pF LS Typical Series Inductance 9.0 nH 10000 V/s dv/dt Max. Voltage Rate of Change Conditions 0.85 0.97 TJ = 25 C TJ = 125 C VR = rated VR Measured lead to lead 5mm from package body (Rated VR) (1) Pulse Width < 300s, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 31DQ.. Units TJ Max. Junction Temperature Range -40 to 150 Tstg Max. Storage Temperature Range -40 to 150 Conditions C C RthJA Max. Thermal Resistance Junction to Ambient 80 C/W DC operation Without cooling fins RthJL Typical Thermal Resistance Junction 34 C/W DC operation to Lead wt Approximate Weight Case Style Marking Device 2 1.2 (0.042) g (oz.) C - 16 31DQ10G www.irf.com 31DQ09G, 31DQ10G Bulletin PD-20806 11/05 10 T J = 150C 1 Reverse Current - IR (mA) 10 125C 0.1 0.01 0.001 25C 0 0 20 40 60 80 100 Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage TJ = 150C 1 TJ = 125C TJ = 25C 1000 0.1 0 0.3 0.6 0.9 1.2 Forward Voltage Drop - V FM (V) Junction Capacitance - C T (pF) Instantaneous Forward Current - IF (A) 0.0001 T = 25C J 100 10 0 40 80 120 160 Fig. 1 - Max. Forward Voltage Drop Characteristics Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage www.irf.com 3 31DQ09G, 31DQ10G Bulletin PD-20806 11/05 4 Average Power Loss (Watts) Allowable Lead Temperature (C) 150 120 DC 90 60 Square wave (D = 0.50) 80% Rated VR applied 30 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 3 DC 2 RMS Limit 1 see note (2) 0 0 1 2 3 4 0 5 0 Average Forward Current - IF(AV) (A) 1 2 3 4 5 Average Forward Current - IF(AV) (A) Fig. 4 - Max. Allowable Lead Temperature Vs. Average Forward Current Fig. 5- Forward Power Loss Characteristics Non-Repetitive Surge Current - I FSM (A) 1000 100 At Any Rated Load Condition And With Rated Vrrm Applied Following Surge 10 10 100 1000 10000 Square Wave Pulse Duration - tp (microsec) Fig. 6 - Max. 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 @ V R1 = 80% rated VR 4 www.irf.com 31DQ09G, 31DQ10G Bulletin PD-20806 11/05 Ordering Information Table Device Code 31 D Q 10 G TR - 1 2 3 4 5 6 7 1 - 31 = 3.3A (Axial and small packages - Current is x10) 2 - D = DO-41 package 3 - Q = Schottky Q.. Series 4 - 10 = Voltage Ratings 5 - G = Schottky Generation 6 - y None = Box (500 pieces) 7 - y TR 10 = 100V 09 = 90V = Tape & Reel (1200 pieces) y none = Standard Production y PbF = Lead-Free 31DQ10 ******************************************** * SPICE Model Diode * ******************************************** .SUBCKT 31DQ10 ANO CAT D1 ANO 1 CAT *Define diode model .MODEL DMOD D(Is=56.46E-06 N=2.202 Rs=28.27E-03 Ikf=0.5957 Xti=2 Eg=1.11 + Cjo=199.3E-12 M=0.4572 Vj=1.873 Fc=0.5 Isr=165.6E-24 Nr=4.955 + Bv=119.9 Ibv=215.5E-06 Tt=21.64E-09) ******************************************** .ENDS 31DQ10 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. 11/05 www.irf.com 5