Bulletin PD-20241 rev. C 06/06 20TQ... 20TQ...S 20 Amp SCHOTTKY RECTIFIER IF(AV) = 19Amp VR = 35/ 45V Major Ratings and Characteristics Description/ Features The 20TQ Schottky rectifier series has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 150° C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. Characteristics Values Units IF(AV) Rectangular 20 A VRRM range 35 / 45 V IFSM @ tp = 5 μs sine 1800 A VF @ 20 Apk, TJ = 125°C 0.51 V Low forward voltage drop High frequency operation TJ range - 55 to 150 °C Guard ring for enhanced ruggedness and long term reliability waveform 150° C TJ operation High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Case Styles 20TQ... 20TQ... S Base Cathode Base Cathode 2 2 1 Cathode TO-220AC www.irf.com 1 3 Anode 3 Anode N/C D2PAK 1 20TQ... Series Bulletin PD-20241 rev. C 06/06 Voltage Ratings Part number VR 20TQ035 20TQ040 20TQ045 35 40 45 Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 5 IFSM 20TQ Units 20 A Max. Peak One Cycle Non-Repetitive 1800 A Surge Current * See Fig. 7 400 EAS Non-Repetitive Avalanche Energy 27 mJ IAR Repetitive Avalanche Current 4 A Conditions 50% duty cycle @ TC = 116° C, rectangular wave form Following any rated load condition and 10ms Sine or 6ms Rect. pulse with rated VRRM applied 5μs Sine or 3μs Rect. pulse TJ = 25 °C, IAS = 4 Amps, L = 3.4 mH Current decaying linearly to zero in 1 μsec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM Max. Forward Voltage Drop (1) 20TQ Units Conditions 0.57 V @ 20A 0.73 V @ 40A 0.51 V @ 20A 0.67 V @ 40A Max. Reverse Leakage Current (1) 2.7 mA TJ = 25 °C * See Fig. 2 105 mA TJ = 125 °C CT Max. Junction Capacitance 1400 pF VR = 5VDC (test signal range 100Khz to 1Mhz) 25 °C LS Typical Series Inductance 8.0 nH Measured lead to lead 5mm from package body 10000 V/ μs * See Fig. 1 IRM dv/dt Max. Voltage Rate of Change (Rated VR) TJ = 25 °C TJ = 125 °C VR = rated VR (1) Pulse Width < 300μs, Duty Cycle < 2% Thermal-Mechanical Specifications 20TQ Units TJ Max. Junction Temperature Range Parameters -55 to 150 °C Tstg Max. Storage Temperature Range Conditions -55 to 150 °C RthJC Max. Thermal Resistance Junction to Case 1.50 °C/W DC operation RthCS Typical Thermal Resistance, Case to Heatsink 0.50 °C/W Mounting surface , smooth and greased wt Approximate Weight T Mounting Torque Marking Device 2 2 (0.07) Min. 6 (5) Max. 12 (10) * See Fig. 4 g (oz.) Kg-cm (Ibf-in) 20TQ045 Case Style TO-220 20TQ045S Case Style D2Pak www.irf.com 20TQ... Series Bulletin PD-20241 rev. C 06/06 1000 ReverseCurrent - I (mA) R 1000 125°C 10 100°C 75°C 1 50°C .1 25°C .01 .001 0 5 10 15 20 25 30 35 40 45 ReverseVoltage- VR (V) 10 Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage 10000 T =150°C J T =125°C J JunctionCapacitance- C (pF) T InstantaneousForwardCurrent - I (A) F 100 T =150°C J 100 T = 25°C J 1 .1 0 .2 .4 .6 .8 1 1.2 1.4 1.6 T =25°C J 1000 100 0 1.8 10 20 30 40 50 ReverseVoltage- V (V) R ForwardVoltageDrop- V (V) FM Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Thermal Impedance- ZthJC (°C/W ) 10 1 .1 D=0.50 D=0.33 D=0.25 D=0.17 D=0.08 P DM t 1 t2 Notes: 1. Dutyfactor D= t1/ t2 .01 SinglePulse (Thermal Resistance) .001 .00001 .0001 .001 2. PeakT =P xZ +T J DM thJC C .01 .1 1 10 100 t , Rectangular PulseDuration(Seconds) 1 Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics www.irf.com 3 20TQ... Series Bulletin PD-20241 rev. C 06/06 18 20TQ RthJC (DC) =1.50°C/W AveragePower Loss - (Watts) AllowableCaseTemperature- (°C) 155 145 135 DC 125 D=0.08 16 D=0.17 D=0.25 14 D=0.33 12 D=0.50 10 RMSLimit 8 DC 6 4 2 115 0 5 10 15 20 0 0 30 25 AverageForwardCurrent - IF(AV) (A) 5 10 15 20 25 30 AverageForwardCurrent - I (A) F(AV) Fig. 5 - Maximum Allowable Case Temperature Vs. Average Forward Current Fig. 6 - Forward Power Loss Characteristics 10000 Non-Repetitive Surge Current - I FSM (A) At Any Rated Load Condition And With Rated VRRM Applied Following Surge 1000 100 10 100 1000 10000 Square Wave Pulse Duration - t p (microsec) Fig. 7 - Maximum Non-Repetitive Surge Current L DUT IRFP460 Rg = 25 ohm CURRENT MONITOR HIGH-SPEED SWITCH FREE-WHEEL DIODE + Vd = 25 Volt 40HFL40S02 Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com 20TQ... Series Bulletin PD-20241 rev. C 06/06 Outline Table Conform to JEDEC outline TO-220AC Dimensions in millimeters and (inches) Conform to JEDEC outline D2Pak (SMD-220) Dimensions in millimeters and (inches) www.irf.com 5 20TQ... Series Bulletin PD-20241 rev. C 06/06 Part Marking Information TO-220AC PART NUMBER EXAMPLE: THIS IS A 20TQ045 LOT CODE 1789 ASSEMBLED ON WW 19, 2001 IN THE ASSEMBLY LINE "C" INTERNATIONAL RECTIFIER LOGO DATE CODE YEAR 1 = 2001 WEEK 19 LINE C ASSEMBLY LOT CODE D2Pak THIS IS A 20TQ045S LOT CODE 8024 ASSEMBLED ON WW 02, 2000 INTERNATIONAL RECTIFIER LOGO PART NUMBER 20TQ045S DATE CODE ASSEMBLY LOT CODE YEAR 0 = 2000 WEEK 02 LINE C Tape & Reel Information Dimensions in millimeters and (inches) 6 www.irf.com 20TQ... Series Bulletin PD-20241 rev. C 06/06 Ordering Information Table Device Code 20 T Q 045 S - 1 2 3 4 5 6 1 - Current Rating (20 = 20A) 2 - Package T = TO-220 3 - Schottky "Q" Series 035 = 35V 4 - Voltage Ratings 040 = 40V 5 - y none = TO-220 045 = 45V yS 6 - = D2Pak y none = Standard Production y PbF = Lead-Free Tube Standard Pack Quantity : 50 pieces 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. 06/06 www.irf.com 7