TVS Diodes Surface Mount > 1500W > 1.5SMCxxAT3G 1.5SMCxxAT3G Pb Description The 1.5SMCxxAT3G series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. This 1.5SMCxxAT3G series is provided in an SMC package ideally suited for small form factor requirements found in communication , automotive, process control, medical equipment and many other industrial and consumer applications. Features • Working Peak Reverse Voltage Range − 5.8 V to 78 V Maximum Ratings and Thermal Characteristics • Nominal Breakdown Voltage Range − 6.8 V to 91V Parameter Symbol Value Unit • Peak Power − 1500 W @ 1 ms Peak Power Dissipation (Note 1) @ TL = P 1500 W • ESD Rating of Class 3 (> 16 kV) per Human Body Model 25°C, Pulse Width = 1 ms PK • Low Leakage < 5 µA Above 10 V DC Power Dissipation @ T = 75°C Measured Zero Lead LengLth (Note 2) PD 4.0 W • Maximum Temperature Coefficient Specified Derate Above 75°C 54.6 mW/°C • Response Time is Typically < 1 ns Bi-directional TLheeadrmal Resistance from Junction−to− R JL 18.3 °C/W • Pb−Free Packages areB Aiv-daiilraebcleti onal DC Power Dissipation (Note 3) @ TA = PD 0.75 W 25°C Derate Above 25°C 6.1 mW/°C Functional Diagram Ttoh–e Armmabl iReenstistance from Junction– RθJA 165 °C/W Cathode Anode Cathode Anode Forward Surge Current (Note 4) I 200 A @ T = 25°C FSM A Operating and Storage T T -65 to °C Additional Information Uni-directional Temperature Range J, stg +150 Uni-directional Stresses exceeding Maximum Ratings may damage the component. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions Datasheet Resources Samples may affect component reliability. 1. 10 x 1000 µs, non−repetitive. 2. 1 in square copper pad, FR−4 board. 3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403-03 case outline dimensions spec. 4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/18

TVS Diodes Surface Mount > 1500W > 1.5SMCxxAT3G I-V Curve Characteristics (T = 25°C unless otherwise noted, V = 3.5 V Max @ I = 100 A) (Note 5) A F F Symbol Parameter I I Maximum Reverse Peak Pulse Current PP V Clamping Voltage @ I C PP V Working Peak Reverse Voltage RWM I Maximum Reverse Leakage Current @ V V R RWM V Breakdown Voltage @ I BR T I Test Current T I Forward Current F V Forward Voltage @ I F F 5. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, non−repetitive duty cycle. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/18

TVS Diodes Surface Mount > 1500W > 1.5SMCxxAT3G Electrical Characteristics (T = 25°C unless otherwise noted) A V I @ Breakdown Voltage V @ I (Note 8) RWM R C PP MV BR Component* Component (Note 6) V Marking RWM V (V) (Note 6 & 7) @ I V I BR T C PP Volts µA MIN NOM MAX mA Volts Amps %/ C 1.5SMC6.8AT3G 6V8A 5.8 1000 6.45 6.8 7.14 10 10.5 143 0.057 1.5SMC7.5AT3G 7V5A 6.4 500 7.13 7.5 7.88 10 11.3 132 0.061 1.5SMC8.2AT3G 8V2A 7.02 200 7.79 8.2 8.61 10 12.1 124 0.065 1.5SMC10AT3G 10A 8.55 10 9.5 10 10.5 1 14.5 103 0.073 1.5SMC12AT3G 12A 10.2 5 11.4 12 12.6 1 16.7 90 0.078 1.5SMC13AT3G 13A 11.1 5 12.4 13 13.7 1 18.2 82 0.081 1.5SMC15AT3G 15A 12.8 5 14.3 15 15.8 1 21.2 71 0.084 1.5SMC16AT3G 16A 13.6 5 15.2 16 16.8 1 22.5 67 0.086 1.5SMC18AT3G 18A 15.3 5 17.1 18 18.9 1 25.2 59.5 0.088 1.5SMC20AT3G 20A 17.1 5 19 20 21 1 27.7 54 0.09 1.5SMC22AT3G 22A 18.8 5 20.9 22 23.1 1 30.6 49 0.092 1.5SMC24AT3G 24A 20.5 5 22.8 24 25.2 1 33.2 45 0.094 1.5SMC27AT3G 27A 23.1 5 25.7 27 28.4 1 37.5 40 0.096 1.5SMC30AT3G 30A 25.6 5 28.5 30 31.5 1 41.4 36 0.097 1.5SMC33AT3G 33A 28.2 5 31.4 33 34.7 1 45.7 33 0.098 1.5SMC36AT3G 36A 30.8 5 34.2 36 37.8 1 49.9 30 0.099 1.5SMC39AT3G 39A 33.3 5 37.1 39 41 1 53.9 28 0.1 1.5SMC43AT3G 43A 36.8 5 40.9 43 45.2 1 59.3 25.3 0.101 1.5SMC47AT3G 47A 40.2 5 44.7 47 49.4 1 64.8 23.2 0.101 1.5SMC51AT3G 51A 43.6 5 48.5 51 53.6 1 70.1 21.4 0.102 1.5SMC56AT3G 56A 47.8 5 53.2 56 58.8 1 77 19.5 0.103 1.5SMC62AT3G 62A 53 5 58.9 62 65.1 1 85 17.7 0.104 1.5SMC68AT3G 68A 58.1 5 64.6 68 71.4 1 92 16.3 0.104 1.5SMC75AT3G 75A 64.1 5 71.3 75 78.8 1 103 14.6 0.105 1.5SMC82AT3G 82A 70.1 5 77.9 82 86.1 1 113 13.3 0.105 1.5SMC91AT3G 91A 77.8 5 86.5 91 95.5 1 125 12 0.106 6. A transient suppressor is normally selected according to the maximum working peak reverse voltage (V ), which should be equal RWM to or greater than the DC or continuous peak operating voltage level. 7. V measured at pulse test current I at an ambient temperature of 25°C. BR T 8. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data − 1500 Watt at the beginning of this group. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/18

TVS Diodes Surface Mount > 1500W > 1.5SMCxxAT3G Ratings and Characteristic Curves Figure 1. Pulse Rating Curve Figure 2. Pulse Waveform PULSE WIDTH (tP) IS DEFINED AS t≤ 10 s THAT POINT WHERE THE PEAK CURRENT DECAYS TO 50% OF 100 IPP. PEAK VALUE - IPP %) E ( U AL HALF VALUE - IPP V 2 50 tP 0 Figure 3. Pulse Derating Curve Figure 4. Dynamic Impedance 160 C °5 140 F2 N % O@ T= A 120 G IT NN 100 ULSE DERATIER OR CURRE 8600 PW PEAK K PO 40 A 20 E P 0 0 25 50 75 100 125 150 ° © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/18

TVS Diodes Surface Mount > 1500W > 1.5SMCxxAT3G Dimensions Soldering Footrpint HE E bD D mm inches A ORDERING INFORMATION L L1 c A1 Component Package Shipping Inches Millimeters SMC 2,500 / Dim 1SMCxxAT3G Min Nom Max Min Nom Max (Pb−Free) Tape & Reel A 0.075 0.084 0.095 1.90 2.13 2.41 A1 0.002 0.004 0.006 0.05 0.10 0.15 b 0.115 0.118 0.121 2.92 3.00 3.07 c 0.006 0.009 0.012 0.15 0.23 0.30 Flow/Wave Soldering (Solder Dipping) D 0.220 0.230 0.240 5.59 5.84 6.10 Peak Temperature : 260OC E 0.260 0.270 0.280 6.60 6.86 7.11 Dipping Time : 10 seconds H 0.305 0.313 0.320 7.75 7.94 8.13 E L 0.030 0.040 0.050 0.76 1.02 1.27 L1 0.020 REF 0.51 REF Physical Specifications NOTES Void-free, transfer-molded, thermosetting 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. Case plastic 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. Polarity Cathode indicated by polarity band 4. 403-01 THRU -02 OBSOLETE, NEW STANDARD 403-03. Part Marking System Mounting Position Any All external surfaces are corrosion Finish resistant and leads are readily solderable Modified L−Bend providing more contact Leads area to bond pads Specific Component Code Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/18