Bulletin PD-20241 rev. B 12/01 20TQ... 20TQ...S 20 Amp SCHOTTKY RECTIFIER IF(AV) = 19Amp VR = 35 to 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 20TQ Units IF(AV) Rectangular 20 A 35 to 45 V IFSM @ tp = 5 µs sine 1800 A High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance 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 VRRM range 150° C TJ operation 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. B 12/01 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 5µs Sine or 3µs Rect. pulse 10ms Sine or 6ms Rect. pulse Following any rated load condition and with rated VRRM applied 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) * See Fig. 1 IRM 20TQ Units Conditions 0.57 V @ 20A 0.73 V @ 40A 0.51 V @ 20A 0.67 V @ 40A TJ = 25 °C TJ = 125 °C 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 dv/dt Max. Voltage Rate of Change (Rated VR) 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 2 2 (0.07) g (oz.) Min. 6 (5) Max. 12 (10) Kg-cm (Ibf-in) * See Fig. 4 www.irf.com 20TQ... Series Bulletin PD-20241 rev. B 12/01 1000 1000 T =150°C J ReverseCurrent - I (mA) R 100 100°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 100 125°C 10 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- VFM(V) 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. B 12/01 18 20TQ RthJC (DC) =1.50°C/W AveragePower Loss - (W atts) 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 25 0 0 30 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 D UT IRFP460 Rg = 25 ohm C URRE NT M O N ITO R H IG H-SPE ED SW ITC H FR EE-W H E EL D IO D E + V d = 25 V olt 40H FL40 S02 Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com 20TQ... Series Bulletin PD-20241 rev. B 12/01 Outline Table 10.54 (0.41) 1.32 (0.05) MAX. 3.78 (0.15) 3.54 (0.14) 1.22 (0.05) DIA. 6.48 (0.25) 6.23 (0.24) 2.92 (0.11) 2.54 (0.10) TERM 2 15.24 (0.60) 14.84 (0.58) 1 2° 3 14.09 (0.55) 3.96 (0.16) 13.47 (0.53) 3.55 (0.14) 0.10 (0.004) Base Cathode 2.04 (0.080) MAX. 1.40 (0.05) 2.89 (0.11) 1.15 (0.04) 2.64 (0.10) 0.94 (0.04) 0.69 (0.03) 1 1 3 0.61 (0.02) MAX. 4.57 (0.18) Cathode 3 Anode 4.32 (0.17) 5.08 (0.20) REF. Conform to JEDEC outline TO-220AC Dimensions in millimeters and (inches) 4.69 (0.18) 4.20 (0.16) 10.16 (0.40) REF. 1.32 (0.05) 1.22 (0.05) 6.47 (0.25) 15.49 (0.61) 93° 6.18 (0.24) 14.73 (0.58) 5.28 (0.21) 2.61 (0.10) 4.78 (0.19) 2.32 (0.09) 0.55 (0.02) 8.89 (0.35) 3X REF. 1.40 (0.055) 1.14 (0.045) 2X Base Cathode 0.46 (0.02) 0.93 (0.37) MINIMUM RECOMMENDED FOOTPRINT 0.69 (0.27) 11.43 (0.45) 2 1 3 4.57 (0.18) 4.32 (0.17) 2 1 17.78 (0.70) 0.61 (0.02) MAX. 5.08 (0.20) REF. 3 8.89 (0.35) 3.81 (0.15) Anode N/C 2.08 (0.08) 2X 2 Conform to JEDEC outline D Pak (SMD-220) Dimensions in millimeters and (inches) www.irf.com 2.54 (0.10) 2X 5 20TQ... Series Bulletin PD-20241 rev. B 12/01 Marking Information THIS IS A 20TQ045-S LOT CODE 8024 ASSEMBLED ON WW 02, 2000 IN THE ASSEMBLY LINE "L" PART NUMBER INTERNATIONAL RECTIFIER LOGO 20TQ045S DATE CODE YEAR 0 = 2000 WEEK 02 LINE L ASSEMBLY LOT CODE Tape & Reel Information TRR 1.60 (0.063) 1.50 (0.059) 4.10 (0.161) 3.90 (0.153) FEED DIR ECTION 1.85 (0.073) 1.65 (0.065) 1.60 (0.063) 1.50 (0.059) DIA. 0.368 (0.0145) 0.342 (0.0135) 11.60 (0.457) 11.40 (0.449) 15.42 (0.609) 15.22 (0.601) TRL 1.75 (0.069) 10.90 (0.429) 10.70 (0.421) 1.25 (0.049) 24.30 (0.957) 23.90 (0.941) DIA. 16.10 (0.634) 4.72 (0.186) 4.52 (0.178) 15.90 (0.626) FEED DIRECTION 13.50 (0.532) 12.80 (0.504) DIA. 26.40 (1.039) 24.40 (0.961) SMD-220 Tape & Reel When ordering, indicate the part number, part orientation, and the quantity. Quantities are in multiples 360 (14.173) DIA. MAX. 60 (2.362) of 800 pieces per reel for both TRL and TRR. D IA . MIN . Dimensions in millimeters and (inches) 6 www.irf.com 20TQ... Series Bulletin PD-20241 rev. B 12/01 Ordering Information Table Device Code 20 T Q 045 S 1 2 3 4 5 1 - Essential Part Number 2 - T = TO-220 3 - Q = Schottky Q Series 035 = 35V 4 - Voltage Rating 040 = 40V 5 - S = D 2Pak 045 = 45V 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. 12/01 www.irf.com 7