81CNQ...A Series Vishay High Power Products Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A FEATURES 81CNQ...A Base common cathode • 175 °C TJ operation • Center tap module • Low forward voltage drop 1 Anode 1 D-61-8 2 Common cathode 3 Anode 2 • High frequency operation • High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance 81CNQ...ASM • Guard ring for enhanced ruggedness and long term reliability 1 Anode 1 2 Common cathode • New fully transfer-mold low profile, small footprint, high current package 3 Anode 2 • Designed and qualified for industrial level D-61-8-SM DESCRIPTION 81CNQ...ASL Base common cathode 3 Anode 2 1 Anode 1 D-61-8-SL 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) 2 x 40 A VR 35 to 45 V MAJOR RATINGS AND CHARACTERISTICS SYMBOL IF(AV) CHARACTERISTICS VALUES Rectangular waveform VRRM UNITS 80 A 35 to 45 V IFSM tp = 5 µs sine 4600 A VF 40 Apk, TJ = 125 °C (per leg) 0.54 V TJ Range - 55 to 175 °C VOLTAGE RATINGS PARAMETER Maximum DC reverse voltage Maximum working peak reverse voltage Document Number: 93400 Revision: 19-Aug-08 SYMBOL VR VRWM 81CNQ035A 81CNQ040A 81CNQ045A UNITS 35 40 45 V For technical questions, contact: [email protected] www.vishay.com 1 81CNQ...A Series Vishay High Power Products Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum average forward current See fig. 5 IF(AV) Maximum peak one cycle non-repetitive surge current per leg See fig. 7 IFSM Non-repetitive avalanche energy per leg EAS TJ = 25 °C, IAS = 8 A, L = 1.7 mH 54 mJ Repetitive avalanche current per leg IAR Current decaying linearly to zero in 1 µs Frequency limited by TJ maximum VA = 1.5 x VR typical 8 A TEST CONDITIONS VALUES UNITS 50 % duty cycle at TC = 141 °C, rectangular waveform 5 µs sine or 3 µs rect. pulse 10 ms sine or 6 ms rect. pulse Following any rated load condition and with rated VRRM applied 80 4600 A 790 ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL 40 A Maximum forward voltage drop per leg See fig. 1 VFM (1) 80 A V TJ = 125 °C TJ = 25 °C IRM (1) 0.74 0.54 40 A 80 A Maximum reverse leakage current per leg See fig. 2 0.60 TJ = 25 °C TJ = 125 °C 0.66 5 VR = Rated VR Maximum junction capacitance per leg CT VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C Typical series inductance per leg LS Measured lead to lead 5 mm from package body Maximum voltage rate of change dV/dt Rated VR mA 45 2600 pF 5.5 nH 10 000 V/µs Note (1) Pulse width < 300 µs, duty cycle < 2 % www.vishay.com 2 For technical questions, contact: [email protected] 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 SYMBOL 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) TEST CONDITIONS TJ, TStg RthJC RthCS VALUES UNITS - 55 to 175 °C DC operation See fig. 4 0.85 DC operation 0.42 Mounting surface, smooth and greased Device flatness < 5 mils 0.30 °C/W 7.8 g Approximate weight Mounting torque (D-61-8 only) 0.28 oz. minimum 40 (35) kgf · cm maximum 58 (50) (lbf · in) 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: [email protected] www.vishay.com 3 81CNQ...A Series Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A Vishay High Power Products 1000 1000 Tj = 175°C Reverse Current - IR (mA) 100 125°C 1 100°C 75°C 0.1 50°C 25°C 0.01 0.001 0 5 10 15 20 25 30 35 40 45 Reverse Voltage - VR (V) 10 Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage (Per Leg) T = 175°C J 10000 T = 125°C J Junction Capacitance - C T (p F) Instantaneous Forward Current - I F (A) 100 150°C 10 T = 25°C J 1 T J = 25°C 1000 0.1 0 0.2 0.4 0.6 0.8 1 100 0 Forward Voltage Drop - VFM (V) 10 20 30 40 50 Reverse Voltage - VR (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics (Per Leg) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg) Thermal Impedance Z thJC (°C/W) 1 D = 0.50 D = 0.33 D = 0.25 D = 0.17 0.1 PDM D = 0.08 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: [email protected] 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 32 RthJC (DC) = 0.85 °C/W Average Power Loss (Watts) Allowable Case Temperature (°C) 180 170 160 DC 150 D = 0.08 28 D = 0.17 D = 0.25 24 D = 0.33 D = 0.50 20 DC 16 RMS Limit 12 8 4 140 0 10 20 30 40 50 0 60 0 10 20 30 40 50 60 Average Forward Current - IF(AV) (A) 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) Non-Repetitive Surge Current - I FSM (A) 10000 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 D.U.T. IRFP460 Rg = 25 Ω Current monitor High-speed switch Freewheel diode + Vd = 25 V 40HFL40S02 Fig. 8 - Unclamped Inductive Test Circuit Document Number: 93400 Revision: 19-Aug-08 For technical questions, contact: [email protected] www.vishay.com 5 81CNQ...A Series Vishay High Power Products Schottky Rectifier New Generation 3 D-61 Package, 2 x 40 A ORDERING INFORMATION TABLE Device code 81 C N Q 045 A - 1 2 3 4 5 6 7 1 - Current rating (80 A) 2 - Circuit configuration: C = Common cathode 3 - Package: N = D-61 4 - Schottky “Q” series 5 - Voltage ratings 6 - Package style: 035 = 35 V 040 = 40 V 045 = 45 V A = D-61-8 ASM = D-61-8-SM ASL = D-61-8-SL 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 http://www.vishay.com/doc?95354 Part marking information http://www.vishay.com/doc?95356 www.vishay.com 6 For technical questions, contact: [email protected] 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