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| 81CNQ...A Series Vishay High Power Products Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A 81CNQ...A Base common cathode FEATURES * 175 C TJ operation * Center tap module * Low forward voltage drop 1 Anode 1 2 Common cathode 3 Anode 2 * High frequency operation * High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance * Guard ring for enhanced ruggedness and long term reliability D-61-8 81CNQ...ASM 1 Anode 1 2 Common cathode 3 Anode 2 * New fully transfer-mold low profile, small footprint, high current package * Designed and qualified for industrial level D-61-8-SM DESCRIPTION 81CNQ...ASL Base common cathode 1 D-61-8-SL Anode 1 3 Anode 2 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, freewheeling diodes, and reverse battery protection. PRODUCT SUMMARY IF(AV) VR 2 x 40 A 35 to 45 V MAJOR RATINGS AND CHARACTERISTICS SYMBOL IF(AV) VRRM IFSM VF TJ tp = 5 s sine 40 Apk, TJ = 125 C (per leg) Range CHARACTERISTICS Rectangular waveform VALUES 80 35 to 45 4600 0.54 - 55 to 175 UNITS A V A V C VOLTAGE RATINGS PARAMETER Maximum DC reverse voltage Maximum working peak reverse voltage SYMBOL VR VRWM 81CNQ035A 35 81CNQ040A 40 81CNQ045A 45 UNITS V Document Number: 93400 Revision: 19-Aug-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 1 81CNQ...A Series Vishay High Power Products Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A TEST CONDITIONS 50 % duty cycle at TC = 141 C, rectangular waveform 5 s sine or 3 s rect. pulse IFSM 10 ms sine or 6 ms rect. pulse EAS IAR TJ = 25 C, IAS = 8 A, L = 1.7 mH Current decaying linearly to zero in 1 s Frequency limited by TJ maximum VA = 1.5 x VR typical Following any rated load condition and with rated VRRM applied VALUES 80 4600 790 54 8 mJ A A UNITS ABSOLUTE MAXIMUM RATINGS PARAMETER Maximum average forward current See fig. 5 Maximum peak one cycle non-repetitive surge current per leg See fig. 7 Non-repetitive avalanche energy per leg Repetitive avalanche current per leg SYMBOL IF(AV) ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL 40 A Maximum forward voltage drop per leg See fig. 1 Maximum reverse leakage current per leg See fig. 2 Maximum junction capacitance per leg Typical series inductance per leg Maximum voltage rate of change Note (1) Pulse width < 300 s, duty cycle < 2 % VFM (1) 80 A 40 A 80 A TJ = 25 C IRM (1) CT LS dV/dt TJ = 125 C VR = Rated VR TJ = 125 C TJ = 25 C TEST CONDITIONS VALUES 0.60 0.74 V 0.54 0.66 5 mA 45 2600 5.5 10 000 pF nH V/s UNITS VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 C Measured lead to lead 5 mm from package body Rated VR www.vishay.com 2 For technical questions, contact: diodes-tech@vishay.com Document Number: 93400 Revision: 19-Aug-08 81CNQ...A Series Schottky Rectifier Vishay High Power Products New Generation 3 D-61 Package, 2 x 40 A THERMAL - MECHANICAL SPECIFICATIONS PARAMETER Maximum junction and storage temperature range Maximum thermal resistance, junction to case per leg Maximum thermal resistance, junction to case per package Typical thermal resistance, case to heatsink (D-61-8 only) Approximate weight 0.28 Mounting torque (D-61-8 only) minimum maximum 40 (35) 58 (50) oz. kgf * cm (lbf * in) SYMBOL TJ, TStg DC operation See fig. 4 DC operation RthCS Mounting surface, smooth and greased Device flatness < 5 mils TEST CONDITIONS VALUES - 55 to 175 0.85 0.42 0.30 7.8 g C/W UNITS C RthJC 81CNQ035A Case style D-61-8 81CNQ040A 81CNQ045A 81CNQ035ASM Marking device Case style D-61-8-SM 81CNQ040ASM 81CNQ045ASM 81CNQ035ASL Case style D-61-8-SL 81CNQ040ASL 81CNQ045ASL Document Number: 93400 Revision: 19-Aug-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 3 81CNQ...A Series Vishay High Power Products Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A 1000 Tj = 175C 1000 Reverse Current - IR (mA) 100 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 T = 125C J T = 25C J Junction Capacitance - C T (p F) Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage (Per Leg) 10000 1 T J = 25C 1000 0.1 0 0.2 0.4 0.6 0.8 1 100 0 10 20 30 40 50 Reverse Voltage - VR (V) Forward Voltage Drop - VFM (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics (Per Leg) 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 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg) www.vishay.com 4 For technical questions, contact: diodes-tech@vishay.com Document Number: 93400 Revision: 19-Aug-08 81CNQ...A Series Schottky Rectifier Vishay High Power Products New Generation 3 D-61 Package, 2 x 40 A 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) 0 0 10 20 30 40 50 60 Average Forward Current - IF(AV) (A) Fig. 5 - Maximum Allowable Case Temperature vs. Average Forward Current (Per Leg) 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 - Maximum Non-Repetitive Surge Current (Per Leg) L High-speed switch Freewheel diode 40HFL40S02 + Vd = 25 V D.U.T. IRFP460 Rg = 25 Current monitor Fig. 8 - Unclamped Inductive Test Circuit Document Number: 93400 Revision: 19-Aug-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 5 81CNQ...A Series Vishay High Power Products ORDERING INFORMATION TABLE Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A Device code 81 1 C 2 N 3 Q 4 045 5 A 6 7 1 2 3 4 5 6 - Current rating (80 A) Circuit configuration: C = Common cathode Package: N = D-61 Schottky "Q" series Voltage ratings Package style: A = D-61-8 ASM = D-61-8-SM ASL = D-61-8-SL 035 = 35 V 040 = 40 V 045 = 45 V 7 - None = Standard production PbF = Lead (Pb)-free (D-61-8 only) Standard pack quantity: A = 10 pieces; ASM/ASL = 20 pieces LINKS TO RELATED DOCUMENTS Dimensions Part marking information http://www.vishay.com/doc?95354 http://www.vishay.com/doc?95356 www.vishay.com 6 For technical questions, contact: diodes-tech@vishay.com Document Number: 93400 Revision: 19-Aug-08 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1 |
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