Fuse Datasheet 881F Series High-Current Fast Opening SMD Fuse RoHS Pb Description This high-current SMD fuse is a small, square, surface mount fuse that is designed as supplemental overcurrent protection for high- current circuits in various applications. This faster opening version enhances protection of the product from overload and short circuit current events in the application. Features & Benefits A vailable in 70A, 80A, and Single fuse solution f or high 100A ratings current applications High interrupting rating - Suitable for a wide variety 1500A 75Vdc of voltage requirement and application With faster opening time response Guaranteed protection against overload and short Surface mountable high circuit current events current fuse Additional Information Compatible with high volume Robust and solderless fuse assembly requirements design Enhanced product reliability Lead-free, Halogen-free, and and performance RoHS compliant Conforms to IEC/EN 60127-1 UL Recognized to and IEC/EN 60127-7 UL/CSA/NMX 248-1 Resources Accessories Samples Applications Blade Servers Routers High-power Battery Systems Power Factor Correction (PFC) in high wattage power supplies Power Distribution Units (PDUs) Agency Approvals Electrical Characteristics for Series Agency Agency File Number Ampere Range % of Ampere Rating Opening Time E71611 70A 100A 100% 1 Hour, Min. J50501628 70A 100A 200% 60 Seconds, Max. Electrical Specifications by Item Agency Approvals Nominal Cold Nominal Ampere Max Voltage Interrupting Nominal Voltage Amp Code Resistance Melting ** Rating (A) Rating (V) Rating Drop * (mV) 2 2 (mOhms) I t (A sec) 70 070. 0.82 89 1050 X X 80 080. 75Vdc 1500A 75Vdc 0.63 86 2000 X X 100 100. 0.52 96 4800 X X 2 * Nominal Voltage Drop measured at 100% rated Current. ** Nominal Melting I t measured at 1500A. Thermal Characteristics Typical Case Temperature Rise (C) * Ampere Rating I (A) n 50%I 75%I 100%I n n n 70 16 38 73 80 25 58 88 100 32 60 127 * Typical values based on tests conducted with fuse mounted on FR-4 circuit board of 0.062 (1.6 mm) thickness with 6 oz. (210 m) Cu. 2021 Littelfuse, Inc. 6 Specifications are subject to change without notice. Revised: GD. 05/31/21100A 80A 70A Fuse Datasheet 881F Series High-Current Fast Opening SMD Fuse Average Time Current Curves Temperature Re-rating Curve 100 160 140 10 120 1 100 0.1 80 25C 60 0.01 40 0.001 -60C -40C -20C 0C 20C 40C 60C 80C 100C 120C 10 1001000 10000 -76F -40F -4F 32F 68F 104F 140F 176F 212F 248F Current in Amperes AMBIENT TEMPERATURE Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. Example: For continuous operation at 70C, the fuse should be re-rated as follows: I = (0.75)(0.90)I = (0.675)I n n 2. The temperature re-rating curve represents nominal conditions. For questions about the temperature re- rating curve, please consult Littelfuse technical support assistance. Soldering Parameters Reflow Condition Pb Free assembly t P - Temperature Min (T ) 150C s(min) T P Critical Zone Pre Heat - Temperature Max (T ) 200C Ramp-up T to T s(max) L P - Time (Min to Max) (t ) 60 180 secs s T L t L Average ramp up rate (Liquidus Temp (T ) to peak 5C/second max. L T S(max) T to T - Ramp-up Rate 5C/second max. S(max) L Ramp-down - Temperature (T ) (Liquidus) 217C L Preheat Reflow T S(min) - Temperature (t ) 60 150 seconds L t S +0/5 Peak Temperature (T ) 260 C P Time within 5C of actual peak Temperature (t ) 20 40 seconds p 25 time to peak temperature Ramp-down Rate 5C/second max. Time (t 25C to peak) Time 25C to peak Temperature (T ) 8 minutes max. P Do not exceed 260C 2021 Littelfuse, Inc. 7 Specifications are subject to change without notice. Revised: GD. 05/31/21 Time in second PERCENT OF RATING Temperature