TVS Diodes Surface Mount > 400W > 1SMA5.0AT3G Series Pb 1SMA5.0AT3G Series Description The 1SMA5.0AT3G 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 1SMA5.0AT3G series is supplied in the Littelfuse exclusive, cost-effective, highly reliable 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 Working Peak Reverse Voltage Range 5.0 V to 78 V Maximum Ratings and Thermal Characteristics Standard Zener Breakdown Voltage Range 6.7 V to 91.25 V Parameter Symbol Value Unit Peak Power 400 W 1 ms Peak Power Dissipation (Note 1) T = L P 400 W ESD Rating of Class 3 (> 16 kV) per Human Body Model PK 25C, Pulse Width = 1 ms Response Time is Typically < 1 ns Flat Handling Surface for Accurate Placement DC Power Dissipation T = 75C L W 1.0 Measured Zero Lead Length (Note 2) PD Package Design for Top Slide or Bottom Circuit Derate Above 75C 20 mW/C Board Mounting Thermal Resistance from Junction R JL 50 C/W toLead Low Profile Package Bi-directional These are PbFree Device DC Power Dissipation (Note 3) P 0.5 W D TA = 25C 4.0 mW/C Derate Above 25C Functional Diagram R Thermal Resistance from Junctionto C/W 250 0JA Ambient Cathode Anode Forward Surge Current (Note 4) TA I 40 A = 25C FSM Additional Information Operating and Storage Temperature -65 to T T C J, stg Range +150 Uni-directional Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may Samples Datasheet Resources occur and reliability may be affected. 1. 10 X 1000 s, nonrepetitive. 2. 1 square copper pad, FR4 board. 3. FR4 board, using Littelfuse minimum recommended footprint, as shown in 403D-02 case outline dimensions spec. 4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17TVS Diodes Surface Mount > 400W > 1SMA5.0AT3G Series I-V Curve Characteristics (T = 25C unless otherwise noted, V = 3.5 V Max. I = 30 A for all types) (Note 5) A F F Symbol Parameter I I Maximum Reverse Peak Pulse Current I PP F V Clamping Voltage I C PP V Working Peak Reverse Voltage RWM V V V C BR RWM I Maximum Reverse Leakage Current V R RWM V I V R F I T V Breakdown Voltage I BR T I Test Current T I Maximum Temperature Coefficient of V F BR I PP V Forward Voltage I F F 5. 1/2 sine wave or equivalent, PW = 8.3 ms, nonrepetitive duty cycle. 5. 1/2 sine wave or equivalent, PW = 8.3 ms nonrepetitive duty cycle 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17