TVS Diodes Surface Mount > 1500W > 1.5SMCxxAT3G Pb 1.5SMCxxAT3G 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) T = L ESD Rating of Class 3 (> 16 kV) per Human Body Model P 1500 W PK 25C, Pulse Width = 1 ms Low Leakage < 5 A Above 10 V DC Power Dissipation T = 75C L PD W 4.0 Maximum Temperature Coefficient Specified Measured Zero Lead Length (Note 2) Derate Above 75C 54.6 mW/C Response Time is Typically < 1 ns Bi-directional Thermal Resistance from Junctionto R 18.3 C/W JL Lead Bi-directional PbFree Packages are Available DC Power Dissipation (Note 3) T = A P 0.75 W D 25C Derate Above 25C Functional Diagram 6.1 mW/C Thermal Resistance from Junction R 165 C/W JA Cathode to Ambient Anode Cathode Anode Forward Surge Current (Note 4) I 200 A FSM T = 25C A Additional Information Operating and Storage -65 to Uni-directional T T C J, stg Temperature Range +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 Samples Datasheet Resources may affect component reliability. 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), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/18TVS Diodes Surface Mount > 1500W > 1.5SMCxxAT3G I-V Curve Characteristics (T = 25C 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 R RWM V 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, nonrepetitive duty cycle. 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/18