Blade Fuses ATOF Blade Fuses Rated 32V Developed by Littelfuse for the automotive industry, the ATOF fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications. Specifications ATOF ATO Ag (Tin Plated) (Silver Plated) Voltage Rating: 32 VDC 32 VDC ATOF Blade Fuses Interrupting Rating: 1000A 32 VDC 1000A 32 VDC *Recommended Environmental Temperature: -40C to +125C -40C to +125C Terminals Material: Tin plated zinc alloy Silver plated zinc alloy Housing Material: PA66 PA66 (U.L. 94 Flammability rating V2) (U.L. 94 Flammability rating V2) Net Weight Per Fuse: 1.45% gr 1.45% gr Complies with: SAE J1284,ISO 8820-3 SAE J1284,ISO 8820-3 UL Listed: File AU1410 File AU1410 CSA Certified: File No. 29862 File No. 29862 ATO Ag (Silver plated) Blade Fuses *Tin platings temperature limit is 130C, Silver plating allows up to 150C at the terminal interface. Ordering Information Time-Current Characteristics Current Opening Time Part Package % of Rating Rating Number Size Rating Min / Max (s) 100 35A & 40A 360,000 / ATOF (Tin Plated) 110 1A-40A 360,000 / 0287xxx.PXCN 1 - 40 2000 1A & 2A 0.35 / 600 0287xxx.U 1 - 40 500 135 3A-40A 0.750 / 600 Time-Current 0287xxx.H 1 - 40 100 160 1A-40A 0.250 / 50 Characteristic Curves 0287xxx.L 1 - 40 50 1A & 2A 0.1 / 5 200 3A-40A 0.15 / 5 ATO Ag (Silver Plated) 1 00 00 1A & 2A 0.02 / 0.5 0287xxx.PXS 1 - 40 2000 350 3A-40A 0.80 / 0.5 1A-30A 0.1 max 600 35A & 40A 0.15 max 1 00 0 Ratings . Test Cable Typ. Voltage Typ.Cold 2 Current Rating Housing Typ.I t Part Number Size Drop Resistance 2 (A) Material Color (A s) 2 1 00 (mm ) (mV) (m) 0287001. 1 0.5 176 123 0.4 0287002. 2 0.5 141 53.5 1.4 1 0 0287003. 3 0.5 137 31.1 7.4 0287004. 4 0.5 136 22.8 14 0287005. 5 0.5 128 17.85 26 028707.5 7.5 0.75 116 10.91 60 1 0287010. 10 1 109 7.70 115 0287015. 15 1.5 102 4.80 340 0287020. 20 2.5 98 3.38 520 0 .1 0287025. 25 2.5 92 2.52 1,000 0287030. 30 4 84 1.97 1,500 0287035. 35 6 87 1.61 2,300 0 .0 1 1 1 0 1 00 1 00 0 0287040. 40 6 96 1.44 3,300 CCuurrrreenntt AA 2 The typical I t is an average value calculated from the breaking capacity tests by using the melting time before the arcing occurs. REV07272021 Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse . littelfuse.com 11 TTiimmee ss 1A 2A 3A 4A 5A 7.5A 10A 15A 20A 25A 30A 35A 40ABlade Fuses ATOF Blade Fuses Rated 32V Dimensions Temperature Table Dimensions in mm for reference only. See outline drawing for dimensions and tolerances. max. allowed current load A at ambient temperature (typical derating) -40C 0C 20C 65C 85C 110C 125C 5.1 19.1 1 1 1 1 1 1 1 1A 2 2 2 2 2 1 1 2A 3A 3 3 3 3 2 2 2 4A 4 4 4 3 3 3 2 18.8 5 5 5 4 4 3 3 5A 6.5 8 7 7 6 5 5 4 7.5A 10 10 10 8 7 6 5 10A 0.65 4.1 15 15 14 12 11 9 8 15A 20 19 18 15 14 12 10 20A 14.5 25 25 23 19 18 15 13 25A 30 29 27 23 21 18 15 30A 35 35 35 29 27 22 19 35A 40 39 37 31 28 24 20 40A Typical Derating of Fuse Melting Element Temperature Security Margin is 20% Wire Cross Section And Fixture Test Set Up Refer To ISO 8820-3 Please Contact Littelfuse For Details Regarding Derating Test Set Up 50 1A 2A 45 3A 4A 5A 40 7.5A 10A Max Recommended 15A Environmental 35 20A Temperature 25A 30A 30 35A 40A 25 20 15 10 5 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 1 00 1 10 1 20 1 30 1 40 1 50 1 60 1 70 1 80 Ambient Temperature C Derating curves may change depending on the final condition of the application (terminals characteristics, wire size etc..). Please ask Littelfuse for more information. REV07272021 Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse . littelfuse.com 12 Max. Allowed Current Load A