TVS Diodes Surface Mount > 1500W > SZ1.5SMC Series SZ1.5SMC Series Pb e3 RoHS Description The SZ1.5SMC 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. The SZ1.5SMC series is supplied in the exclusive, cost-effective, highly reliable Littelfuse package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications. Features Zener Transient Recognized to UL 497B Overvoltage Suppressors as an Isolated Loop Circuit Agency Approvals Protector Working Peak Reverse Voltage Range 5.8 V to Agency Agency File Number Maximum Temperature 77.8 V Coefficient Specified E128662 Standard Zener Response Time is Typically Breakdown Voltage Range < 1 ns 6.45 V to 95.5V Maximum Ratings and Thermal Characteristics PbFree Packages are Peak Power 1500 W 1 Available ms Parameter Symbol Value Unit SZ Prefix for Automotive ESD Rating of Class 3 (> and Other Applications Peak Power Dissipation (Note 1) T = L P 1500 W PK 16 KV) per Human Body 25C, Pulse Width = 1 ms Requiring Unique Site Model and Control Change DC Power Dissipation T = 75C L Requirements AEC Measured Zero Lead Length (Note 2) P 4.0 W Maximum Clamp Voltage D Derate Above 75C 54.6 mW/C Q101 Qualified and PPAP Peak Pulse Current Thermal Resistance from Junctionto R 18.3 C/W JL Capable Lead Low Leakage < 5 A Above 10 V DC Power Dissipation (Note 3) T = A P 0.75 W D 25C Derate Above 25C 6.1 mW/C Thermal Resistance from Junctionto R 165 C/W JA Functional Diagram Ambient Bi-directional Forward Surge Current (Note 4) TA I 200 A FSM = 25C Cathode Anode Operating and Storage Temperature -65 to T T C J, stg Range +150 Uni-directional Stresses exceeding Maximum Ratings may damage the device. 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 may affect device reliability. Additional Information 1. 10 x 1000 s, nonrepetitive. 2. 1 in square copper pad, FR4 board. 3. FR4 board, using Littelfuse minimum recommended footprint, as shown in 403-03 case outline dimensions spec. 4. 1/2 sine wave (or equivalent square wave), P = 8.3 ms, duty cycle = 4 pulses per W minute maximum. Samples Datasheet Resources 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 01/08/21TVS Diodes Surface Mount > 1500W > SZ1.5SMC Series I-V Curve Characteristics (T = 25C unless otherwise noted, V = 3.5 V Max I = 100 A) (Note 5) A F F Symbol Parameter For Uni-directional 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 R RWM V Breakdown Voltage I BR T V 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, nonrepetitive duty cycle. Electrical Characteristics (T = 25C unless otherwise noted) A (Note 8) Breakdown Voltage V I C PP V I MV BR RWM R (Note 6) Device V TYP. (Note 7) RWM V (V) I V I Device BR T C PP Marking Volts A Min Nom Max mA Volts Amps %/ C SZ1.5SMC6.8AT3G 6V8A 5.8 1000 6.45 6.8 7.14 10 10.5 143 0.057 SZ1.5SMC7.5AT3G 7V5A 6.4 500 7.13 7.5 7.88 10 11.3 132 0.061 SZ1.5SMC10AT3G 10A 8.55 10 9.5 10 10.5 1 14.5 103 0.073 SZ1.5SMC12AT3G 12A 10.2 5 11.4 12 12.6 1 16.7 90 0.078 SZ1.5SMC13AT3G 13A 11.1 5 12.4 13 13.7 1 18.2 82 0.081 SZ1.5SMC15AT3G 15A 12.8 5 14.3 15 15.8 1 21.2 71 0.084 SZ1.5SMC16AT3G 16A 13.6 5 15.2 16 16.8 1 22.5 67 0.086 SZ1.5SMC18AT3G 18A 15.3 5 17.1 18 18.9 1 25.2 59.5 0.088 SZ1.5SMC20AT3G 20A 17.1 5 19 20 21 1 27.7 54 0.09 SZ1.5SMC22AT3G 22A 18.8 5 20.9 22 23.1 1 30.6 49 0.092 SZ1.5SMC24AT3G 24A 20.5 5 22.8 24 25.2 1 33.2 45 0.094 SZ1.5SMC27AT3G 27A 23.1 5 25.7 27 28.4 1 37.5 40 0.096 SZ1.5SMC30AT3G 30A 25.6 5 28.5 30 31.5 1 41.4 36 0.097 SZ1.5SMC33AT3G 33A 28.2 5 31.4 33 34.7 1 45.7 33 0.098 SZ1.5SMC36AT3G 36A 30.8 5 34.2 36 37.8 1 49.9 30 0.099 SZ1.5SMC39AT3G 39A 33.3 5 37.1 39 41 1 53.9 28 0.1 SZ1.5SMC43AT3G 43A 36.8 5 40.9 43 45.2 1 59.3 25.3 0.101 SZ1.5SMC47AT3G 47A 40.2 5 44.7 47 49.4 1 64.8 23.2 0.101 SZ1.5SMC51AT3G 51A 43.6 5 48.5 51 53.6 1 70.1 21.4 0.102 SZ1.5SMC56AT3G 56A 47.8 5 53.2 56 58.8 1 77 19.5 0.103 SZ1.5SMC62AT3G 62A 53 5 58.9 62 65.1 1 85 17.7 0.104 SZ1.5SMC68AT3G 68A 58.1 5 64.6 68 71.4 1 92 16.3 0.104 SZ1.5SMC75AT3G 75A 64.1 5 71.3 75 78.8 1 103 14.6 0.105 SZ1.5SMC82AT3G 82A 70.1 5 77.9 82 86.1 1 113 13.3 0.105 SZ1.5SMC91AT3G 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 to RWM or greater than the DC or continuous peak operating voltage level. 7. V measured at pulse test current I at an ambient temperature of 25C. 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. 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 01/08/21