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| Bulletin PD-20040 rev. A 09/01 81CNQ...A SERIES SCHOTTKY RECTIFIER New GenIII D-61 Package Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM range IFSM @ tp = 5 s sine VF TJ @ 40 Apk, TJ = 125C (per leg) range 80 Amp Description/Features The 81CNQ...A center tap Schottky rectifier module 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 module High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability 81CNQ...A Units 80 35 to 45 4600 0.54 A V A V - 55 to 175 C New fully transfer-mold low profile, small footprint, high current package Case Styles 81CNQ...A 81CNQ...ASM 81CNQ...ASL D61-8 www.irf.com D61-8-SM D61-8-SL 1 81CNQ...A Series Bulletin 20040 rev. A 09/01 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 81CNQ035A 35 81CNQ040A 40 81CNQ045A 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) 4600 790 54 8 A mJ A Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied 5s Sine or 3s Rect. pulse TJ = 25 C, IAS = 8 Amps, L = 1.7 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical 81CNQ Units 80 A Conditions 50% duty cycle @ TC = 141 C, rectangular wave form Electrical Specifications Parameters VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1) 81CNQ Units 0.60 0.74 0.54 0.66 5 45 2600 5.5 10000 V V V V mA mA pF nH V/ s @ 40A @ 80A @ 40A @ 80A Conditions TJ = 25 C TJ = 125 C VR = rated VR IRM CT LS Max. Reverse Leakage Current (Per Leg) * See Fig. 2 Typical Series Inductance (1) (Per Leg) Max. Junction Capacitance (Per Leg) TJ = 25 C TJ = 125 C 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 VR) (1) Pulse Width < 300s, Duty Cycle <2% Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range 81CNQ Units -55 to 175 -55 to 175 0.85 0.42 0.30 7.8 (0.28) Min. Max. 40 (35) 58 (50) C C C/W C/W C/W g (oz.) Kg-cm (Ibf-in) 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 (D61-8 Only) wt T Approximate Weight MountingTorque (D61-8 Only) DCoperation DCoperation * See Fig. 4 Mounting surface , smooth and greased Device flatness < 5 mils 2 www.irf.com 81CNQ...A Series Bulletin 20040 rev. A 09/01 1000 1000 Tj = 175C 100 Reverse Current - IR (mA) 150C 10 1 0.1 0.01 0.001 0 5 125C 100C 75C 50C 25C 100 Instantaneous Forward Current - I F (A) 10 15 20 25 30 35 40 45 Reverse Voltage - VR (V) 10 T = 175C J Junction Capacitance - C T (p F) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg) 10000 T = 125C J T = 25C J T J = 25C 1 1000 0.1 0 0.2 0.4 0.6 0.8 1 Forward Voltage Drop - VFM (V) Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg) 100 0 10 20 30 40 50 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg) 1 Thermal Impedance Z thJC (C/W) D = 0.50 D = 0.33 D = 0.25 D = 0.17 0.1 D = 0.08 PDM t1 t2 Notes: Single Pulse (Thermal Resistance) 1. Duty factor D = t1/ t2 2. Peak Tj = Pdm x ZthJC + Tc 0.01 0.00001 0.0001 0.001 0.01 0.1 1 10 100 t1 , Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg) www.irf.com 3 81CNQ...A Series Bulletin 20040 rev. A 09/01 180 Allowable Case Temperature (C) 32 RthJC (DC) = 0.85 C/W Average Power Loss (Watts) 170 D = 0.08 28 D = 0.17 D = 0.25 24 D = 0.33 D = 0.50 20 160 DC 16 RMS Limit 12 8 4 DC 150 140 0 10 20 30 40 50 60 Average Forward Current - IF(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg) 0 0 10 20 30 40 50 60 Average Forward Current - IF(AV) (A) Fig. 6 - Forward Power Loss Characteristics (Per Leg) 10000 Non-Repetitive Surge Current - I FSM (A) 1000 At Any Rated Load Condition And With Rated Vrrm Applied Following Surge 100 10 100 1000 10000 Square Wave Pulse Duration - tp (microsec) Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg) L H IG H-SPE ED SW ITC H FR EE-W H E EL D IO D E 40H FL40 S02 V d = 25 V olt D UT IRFP460 Rg = 25 ohm + C URRE NT M O N ITO R Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com 81CNQ...A Series Bulletin 20040 rev. A 09/01 Outline Table Outline D61-8 Dimensions are in millimeters and (inches) Outline D61-8-SM Dimensions are in millimeters and (inches) www.irf.com 5 81CNQ...A Series Bulletin 20040 rev. A 09/01 Outline Table Outline D61-8-SL Dimensions are in millimeters and (inches) 6 www.irf.com 81CNQ...A Series Bulletin 20040 rev. A 09/01 Part Marking Information INTERNATIONAL RECTIFIER LOGO THIS IS A 81CNQ045A WITH LOT CODE 89 09 ASSEMBLED ON WW 45, 2000 IN THE ASSEMBLY LINE "A" ASSEMBLY LOT CODE PART NUMBER 81CNQ045A 89 09 045A DATE CODE YEAR 0 = 2000 WEEK 45 LINE A D61-8 INTERNATIONAL RECTIFIER LOGO THIS IS A 81CNQ045ASM WITH LOT CODE 89 09 ASSEMBLED ON WW 45, 2000 IN THE ASSEMBLY LINE "A" ASSEMBLY LOT CODE 81CNQ045ASM 89 09 045A DATE CODE YEAR 0 = 2000 WEEK 45 LINE A PART NUMBER D61-8-SM INTERNATIONAL RECTIFIER LOGO 81CNQ045ASL 89 09 045A PART NUMBER THIS IS A 81CNQ045ASL WITH LOT CODE 89 09 ASSEMBLED ON WW 45, 2000 IN THE ASSEMBLY LINE "A" ASSEMBLY LOT CODE DATE CODE YEAR 0 = 2000 WEEK 45 LINE A D61-8-SL www.irf.com 7 81CNQ...A Series Bulletin 20040 rev. A 09/01 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. 09/01 8 www.irf.com |
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