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| PD-2.305 rev. B 02/2000 31DQ05 31DQ06 SCHOTTKY RECTIFIER 3.3 Amp Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM IFSM @ tp = 5 s sine VF TJ @ 3 Apk, TJ = 25C Description/Features Units A V A V C The 31DQ.. 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 31DQ.. 3.3 50/60 340 0.62 - 40 to 150 CASE STYLE AND DIMENSIONS Outline C - 16 Dimensions in millimeters and inches 1 31DQ05, 31DQ06 PD-2.305 rev. B 02/2000 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) 50 60 VRWM Max. Working Peak Reverse Voltage (V) 31DQ05 31DQ06 Absolute Maximum Ratings Parameters I F(AV) Max. Average Forward Current * See Fig. 4 I FSM Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 6 340 55 A 31DQ.. Units 3.3 A Conditions 50% duty cycle @ TA = 40 C, rectangular wave form With cooling fins 5s Sine or 3s Rect. pulse Following any rated load condition and with rated VRRM applied 10ms Sine or 6ms Rect. pulse Electrical Specifications Parameters V FM Max. Forward Voltage Drop * See Fig. 1 (1) 31DQ.. Units 0.62 0.78 0.54 0.65 2 15 160 9.0 V V V V mA mA pF nH @ 3A @ 6A @ 3A @ 6A Conditions TJ = 25 C TJ = 125 C VR = rated VR IRM CT LS Max. Reverse Leakage Current * See Fig. 2 Typical Series Inductance (1) Typical Junction Capacitance TJ = 25 C TJ = 125 C VR = 5VDC, (test signal range 100Khz to 1Mhz) 25C Measured lead to lead 5mm from package body (1) Pulse Width < 300s, Duty Cycle <2% Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range 31DQ.. Units -40 to 150 -40 to 150 80 34 C C Conditions RthJA Max. Thermal Resistance Junction to Ambient RthJA Typical Thermal Resistance Junction to Ambient wt Approximate Weight Case Style C/W DCoperation Without cooling fins C/W With fin 20 x 20 (0.79 x 0.79) 1.0 (0.04) thick. Dimensions in millimeters (inches) 1.2 (0.042) g (oz.) C - 16 2 31DQ05, 31DQ06 PD-2.305 rev. B 02/2000 10 100 T J = 150C 10 Reverse Current - IR (mA) 1 125C 0.1 Instantaneous Forward Current - IF (A) 0.01 25C TJ = 150C TJ = 125C 0.001 0 20 40 60 Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage 1 TJ = 25C 1000 Junction Capacitance - CT (pF) T = 25C J 100 0.1 0 0.2 0.4 0.6 0.8 1 Forward Voltage Drop - VFM (V) Fig. 1 - Max. Forward Voltage Drop Characteristics 10 0 40 80 120 160 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage 3 31DQ05, 31DQ06 PD-2.305 rev. B 02/2000 150 Allowable Case Temperature - (C) Average Power Loss - (Watts) 3 2.5 2 1.5 1 0.5 0 0 1 2 3 4 5 Average Forward Current - IF(AV) (A) Fig. 5- Forward Power Loss Characteristics D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 RMS Limit DC 120 DC 90 60 Square wave (D = 0.50) 80% Rated V applied R 30 see note (2) 0 0 1 2 3 4 5 Average Forward Current - IF(AV)(A) Fig. 4 - Max. Allowable Case Temperature Vs. Average Forward Current Non-Repetitive Surge Current - IFSM(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 31DQ05, 31DQ06 PD-2.305 rev. B 02/2000 WORLD HEADQUARTERS: EUROPEAN HEADQUARTERS: IR CANADA: IR GERMANY: IR ITALY: IR FAR EAST: IR SOUTHEAST ASIA: http://www.irf.com 233 Kansas St., El Segundo, California 90245 U.S.A Tel: (310) 322-3331 Fax: (310) 322-3332 Hurst Green, Oxted, Surrey RH8 9BB, U.K. Tel: ++ 44 1883 732020 Fax: ++ 44 1883 733408 7231 Victoria Park Ave., Suite #201, Markham, Ontario L3R 2Z8 Tel: (905) 475 1897. Fax: (905) 475 8801 Saalburgstrasse 157, 61350 Bad Homburg Tel: ++ 49 6172 96590 Fax: ++ 49 6172 965933 Via Liguria 49, 10071 Borgaro, Torino Tel: ++ 39 11 4510111 Fax: ++ 39 11 4510220 K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo, Japan 171 Tel: 81 3 3983 0086 Fax: 81 3 3983 0642 315 Outram Road, # 10-02 Tan Boon Liat Building, SINGAPORE 0316. Tel: 65 221 8371. Fax: 65 221 8372. Data and specifications subject to change without notice 11/97 Fax-On-Demand: +44 1883 733420 5 |
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