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| Bulletin PD-20842 rev. B 05/06 20CTQ...PbF Series SCHOTTKY RECTIFIER 20 Amp IF(AV) = 20Amp VR = 35/ 45V Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM range IFSM @ tp = 5 s sine VF TJ @ 10 Apk, TJ = 125C (per leg) range Description/ Features Units A The 20CTQ...PbF center tap Schottky rectifier series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 175 C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175 C TJ operation Center tap TO-220 package Low forward voltage drop High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance High frequency operation Guard ring for enhanced ruggedness and long term reliability Lead-Free ("PbF" suffix) Values 20 35/ 45 1060 0.57 V A V - 55 to 175 C Case Styles 20CTQ...PbF Base Common Cathode 2 1 Anode 2 Common Cathode 3 Anode TO-220 www.irf.com 1 20CTQ...PbF Bulletin PD-20842 rev. B 05/06 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 20CTQ035PbF 20CTQ040PbF 35 40 20CTQ045PBF 45 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7 Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg) 1060 265 13 2.0 A mJ A 5s Sine or 3s Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied 20CTQ Units 20 A Conditions 50% duty cycle @ TC = 145C, rectangular wave form TJ = 25 C, IAS = 2.0 Amps, L = 6.5 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. V A = 1.5 x VR typical Electrical Specifications Parameters VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1) 20CTQ Units 0.64 0.76 0.57 0.68 2 15 900 8.0 10000 V V V V mA mA pF nH V/ s @ 10A @ 20A @ 10A @ 20A TJ = 25 C TJ = 125 C Conditions TJ = 25 C TJ = 125 C VR = rated VR IRM CT LS Max. Reverse Leakage Current (Per Leg) * See Fig. 2 (1) Max. Junction Capacitance (Per Leg) Typical Series Inductance (Per Leg) VR = 5VDC (test signal range 100Khz to 1Mhz) 25C Measured lead to lead 5mm from package body dv/dt Max. Voltage Rate of Change (Rated V R) Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range (1) Pulse Width < 300s, Duty Cycle <2% 20CTQ Units -55 to 175 -55 to 175 3.25 1.63 0.50 2 (0.07) Min. Max. 6 (5) 12 (10) C C Conditions RthJC Max. Thermal Resistance Junction to Case (Per Leg) RthJC Max. Thermal Resistance Junction to Case (Per Package) RthCS Typical Thermal Resistance, Case to Heatsink wt T Approximate Weight Mounting Torque Marking Device C/W DC operation C/W DC operation * See Fig. 4 C/W Mounting surface , smooth and greased g (oz.) Kg-cm (Ibf-in) 20CTQ045 2 www.irf.com 20CTQ...PbF Bulletin PD-20842 rev. B 05/06 10 00 10 00 10 0 R v rs C rre t - I (m ) ee e u n A R 1 0 1 .1 .0 1 .0 1 0 .0 0 01 0 T =1 5 C 7 J 1 0C 5 1 5C 2 1 0C 0 7 5C 5 0C 2 5C 10 0 In ta ta e u F rw rdC rre t - I (A s n nos o a un ) F 5 11223344 05050505 R v rs V lta e- V (V ee e o g R) 1 0 T =1 5 C 7 J T =1 5 C 2 J Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg) 10 00 J n tio C p c n e- C (p ) u c n a a ita c F T T= 2 5C J 1 T =2 5C J .1 0 .2 .4 .6 .8 1 1 .2 1 .4 1 .6 1 .8 10 0 0 1 0 2 0 3 0 4 0 5 0 F rw rdV lta eD p- V (V oa o g ro ) F M R v rs V lta e- V (V ee e o g ) R Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg) 1 0 T e a Im e a c -Zth C( /W h rm l p d n e C) J D=0 0 .5 D=0 3 .3 D=0 5 .2 D=0 7 .1 D=0 8 .0 Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg) 1 PM D .1 t 1 t 2 N te : os 1 D tyfa to D= t / t .u cr 12 S g P ls in le u e (T e a R s ta c ) h rm l e is n e 2 P a T =P xZ . ek +T JD M th C C J .0 1 .1 1 1 0 10 0 .0 1 .0 1 0 .0 0 1 00 .0 0 01 .0 1 0 t , R c n u r P ls D ra n(S c n s e ta g la u e u tio eo d) 1 Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg) www.irf.com 3 20CTQ...PbF Bulletin PD-20842 rev. B 05/06 10 8 A w b C s T m e tu - ( ) llo a le a e e p ra re C 15 7 10 7 15 6 10 6 15 5 10 5 15 4 0 D C 2CQ 0T R J (D ) =3 5 C .2 /W th C C 9 D=0 8 .0 8 D=0 7 .1 D=0 5 .2 7 D=0 3 .3 .5 6 D=0 0 5 4 R SL it M im 3 2 1 5 1 0 5 1 0 0 5 1 0 1 5 D C A e g P w r L s - (W tts v ra e o e o s a) A e g F rw rdC rre t - IF V (A v ra e o a un (A ) ) A e g F rw rdC rre t - I v ra e o a un (A ) FV (A ) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg) 1000 FSM Fig. 6 - Forward Power Loss Characteristics (Per Leg) Non-Repetitive Surge Current - I (A) At Any Rated Load Condition And With Rated V RRM Applied Following Surge 100 10 100 1000 10000 Square Wave Pulse Duration - t p (microsec) Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg) L HIGH-S PEED S CH WIT FR EE-WHEEL DIODE 40HF L40S 02 + DUT IR P460 F Rg = 25 ohm Vd = 25 Volt CURRENT MONIT OR Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com 20CTQ...PbF Bulletin PD-20842 rev. B 05/06 Outline Table Conform to JEDEC outline TO-220AB Part Marking Information IRXC Assembly Line - SubCon Assembly Line EXAMPLE: THIS IS A 20CTQ045 LOT CODE 1789 ASSEMBLED ON WW 19, 2001 IN THE ASSEMBLY LINE "C" PART NUMBER INTERNATIONAL RECTIFIER LOGO ASSEMBLY LOT CODE DATE CODE P = LEAD-FREE YEAR 1 = 2001 WEEK 19 LINE C IRMX Assembly Line EXAMPLE: THIS IS A 20CTQ045 LOT CODE 1789 ASSEMBLED ON WW 19, 2001 INTERNATIONAL RECTIFIER LOGO ASSEMBLY LOT CODE PART NUMBER DATE CODE YEAR 1 = 2001 WEEK 19 P = LEAD-FREE www.irf.com 5 20CTQ...PbF Bulletin PD-20842 rev. B 05/06 Ordering Information Table Device Code 20 1 C 2 T 3 Q 4 045 PbF 5 6 1 2 3 4 5 6 - Current Rating (20 = 20A) Circuit Configuration C = Common Cathode Package T = TO-220 Schottky "Q" Series Voltage Ratings none = Standard Production PbF = Lead-Free Tube Standard Pack Quantity : 50 pieces 035 = 35V 040 = 40V 045 = 45V Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level and Lead-Free. 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. 05/06 6 www.irf.com |
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