Bulletin PD-2.306 rev. G 12/03 31DQ09 31DQ10 SCHOTTKY RECTIFIER 3.3 Amp Major Ratings and Characteristics Description/ Features 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. Characteristics 31DQ.. Units IF(AV) Rectangular 3.3 A 90/100 V Low profile, axial leaded outline IFSM @ tp = 5 µs sine 210 A High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop VF 0.85 V High frequency operation - 40 to 150 °C waveform VRRM @ 3 Apk, TJ = 25°C TJ 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 31DQ09, 31DQ10 Bulletin PD-2.306 rev. G 12/03 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 31DQ09 31DQ10 90 100 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current 31DQ.. Units Conditions 3.3 A 50% duty cycle @ TC = 53.4°C, rectangular wave form A 5µs Sine or 3µs Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied * See Fig. 4 IFSM Max. Peak One Cycle Non-Repetitive 210 Surge Current * See Fig. 6 34 EAS Non-Repetitive Avalanche Energy 3.0 mJ IAR Repetitive Avalanche Current 0.5 A TJ = 25 °C, IAS = 1.0 Amps, L = 6 mH Current decaying linearly to zero in 1 µsec 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) Conditions 0.85 0.97 V V @ 3A @ 6A 0.69 V @ 3A 0.80 V @ 6A Max. Reverse Leakage Current 1 mA TJ = 25 °C * See Fig. 2 3 mA TJ = 125 °C VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C (1) CT Typical Junction Capacitance 110 pF LS Typical Series Inductance 9.0 nH 10000 V/µs dv/dt Max. Voltage Rate of Change TJ = 25 °C TJ = 125 °C VR = rated VR Measured lead to lead 5mm from package body (Rated VR) (1) Pulse Width < 300µs, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 31DQ.. Units TJ Max. Junction Temperature Range -40 to 150 °C Tstg Max. Storage Temperature Range -40 to 150 °C Conditions 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 2 1.2 (0.042) g (oz.) C - 16 www.irf.com 31DQ09, 31DQ10 Bulletin PD-2.306 rev. G 12/03 10 T J = 150˚C 1 Reverse Current - IR (mA) 10 125˚C 0.1 0.01 0.001 25˚C 0 0 20 40 60 80 100 Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage TJ = 150˚C 1 TJ = 125˚C TJ = 25˚C 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 = 25˚C 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 31DQ09, 31DQ10 Bulletin PD-2.306 rev. G 12/03 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 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 - 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 31DQ09, 31DQ10 Bulletin PD-2.306 rev. G 12/03 Ordering Information Table Device Code 31 D Q 10 TR 1 2 3 4 5 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 - TR = Tape & Reel package (1200 pcs) - 10 = 100V 09 = 90V = Box package (500 pcs) 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. 12/03 www.irf.com 5