SZ1.5SMC33AT3G Littelfuse

1.5SMC6.8AT3G Series, SZ1.5SMC6.8AT3G Series 1500 Watt Peak Power Zener Transient Voltage Suppressors 1.5SMC6.8AT3G Series, SZ1.5SMC6.8AT3G Series MAXIMUM RATINGS Rating Symbol Value Unit Peak Power Dissipation (Note 1) T = 25C, Pulse Width = 1 ms P 1500 W L PK DC Power Dissipation T = 75C P 4.0 W L D Measured Zero Lead Length (Note 2) Derate Above 75C 54.6 mW/C Thermal Resistance, JunctiontoLead R 18.3 C/W JL DC Power Dissipation (Note 3) T = 25C P 0.75 W A D Derate Above 25C 6.1 mW/C Thermal Resistance from JunctiontoAmbient R 165 C/W JA Forward Surge Current (Note 4) T = 25C I 200 A A FSM Operating and Storage Temperature Range T , T 65 to +150 C J stg 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 occur and reliability may be affected. 1. 10 X 1000 s, nonrepetitive 2. 1 in. square copper pad, FR4 board 3. FR4 board, using ON Semiconductor minimum recommended footprint, as shown in 403 case outline dimensions spec. 4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. ELECTRICAL CHARACTERISTICS (T = 25C unless A I otherwise noted, V = 3.5 V Max. I (Note 5) = 100 A) F F I F Symbol Parameter I Maximum Reverse Peak Pulse Current PP V Clamping Voltage I C PP V V V V Working Peak Reverse Voltage C BR RWM RWM V I V R F I Maximum Reverse Leakage Current V I R RWM T V Breakdown Voltage I BR T I Test Current T V Maximum Temperature Coefficient of V BR I BR PP I Forward Current F V Forward Voltage I UniDirectional TVS F F 5. 1/2 sine wave or equivalent, PW = 8.3 ms nonrepetitive duty cycle