Surface Mount Fuses 2 NANO > Very Fast-Acting Fuse > 451/453 Series PS RoHS 451/453 Series Fuse E Description 2 The Nano SMF Fuse is a very small, Wire-in-Air (WIA) square shape surface mount fuse that was designed for secondary side circuit over-current protection applications. These fuses are designed for PCB using surface mount technology. Features Very fast-acting UL Listed and Recognized to UL/CSA/ Small size NMX UL 248-1 and UL/ Wide range of current CSA/NMX UL 248-14 Agency Approvals rating available (see Agency Approvals) (0.062A to 20A) Conforms to DENANs Agency Agency File Number Ampere Range Wide operating Appendix 3 E10480 6.3A - 20A temperature range Conforms to EN 60127-1 29862 0.062A - 15A RoHS compliant and and EN 60127-7 1A, 1.25A, 2A, 2.5A, Halogen Free J50446731 3.15A, 4A, 5A, 7A, 8A, 10A, 12A, 20A NBK030205-E10480A 1A-1.6A Applications PS E NBK030205-E10480B 2A-5A NBK101105-E184655 6.3A - 10A Notebook PC Storage system E10480 0.062A - 5A LCD/PDP TV Telecom system 1A, 1.25A, 2A, 2.5A, NA 3.15A, 4A, 5A, 7A, 8A, LCD monitor Wireless basestation 10A, 12A, 20A LCD/PDP panel White goods LCD backlight inverter Game console Electrical Characteristics for Series Portable DVD player Office Automation equipment % of Ampere Rating Ampere Rating Opening Time Power supply Battery charging circuit 100% 0.062 20 4 hours, Minimum Networking protection 0.062 10 5 sec., Maximum 200% PC server 12 20 20 sec., Maximum Industrial equipment Cooling fan system Additional Information Datasheet Samples Resources 451 Series 451 Series 451 Series Datasheet Resources Samples 453 Series 453 Series 453 Series 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 11/05/20Surface Mount Fuses 2 NANO > Very Fast-Acting Fuse > 451/453 Series Electrical Specifications by Item Max Agency Approvals Ampere Nominal Cold Nominal Voltage Interrupting Rating Amp Code Resistance Melting Rating Rating PS 2 2 E (A) (Ohms) I t (A sec) (V) .062 .062 125 5.5000 0.00019 - x - x - - .080 .080 125 4.0500 0.00033 - x - x - - .100 .100 125 3.1000 0.00138 - x - x - - .125 .125 125 1.7000 0.00286 - x - x - - .160 .160 125 1.2157 0.0048 - x - x - - .200 .200 125 0.8372 0.0089 - x - x - - .250 .250 125 0.5765 0.0158 - x - x - - .315 .315 125 0.3918 0.0311 - x - x - - 50A 125VAC/VDC .375 .375 125 0.4541 0.0442 - x - x - - 300A 32VDC PSE: 100A 100VAC .400 .400 125 0.4233 0.0551 - x - x - - .500 .500 125 0.3046 0.0824 - x - x - - .630 .630 125 0.2022 0.1381 - x - x - - .750 .750 125 0.1444 0.2143 - x - x - - .800 .800 125 0.1355 0.2654 - x - x - - 1.00 001. 125 0.0780 0.6029 - x x x x x 1.25 1.25 125 0.0780 0.664 - x x x x x 1.50 01.5 125 0.0630 0.853 - x x x - - 1.60 01.6 125 0.0580 1.060 - x x x - - 2.00 002. 125 0.0367 0.530 - x x x x x 2.50 02.5 125 0.0286 1.029 - x x x x x 50A 125VAC/VDC 3.00 003. 125 0.0227 1.650 - x x x - - 10,000A 75VDC 3.15 3.15 125 0.0215 1.920 - x x x x x 300A 32VDC 3.50 03.5 125 PSE: 100A 100VAC 0.0200 2.469 - x x x - - 4.00 004. 125 0.0160 3.152 - x x x x x 5.00 005. 125 0.0125 5.566 - x x x x x 6.30 06.3 125 0.0096 9.170 x x x - - - 50A 125VAC/VDC 7.00 007. 125 400A 32VDC 0.0090 10.32 x x x - x x PSE: 100A 100VAC 8.00 008. 125 0.0077 20.23 x x x - x x 35A 125 VAC/ 50A 125 VDC 10.0 010. 125 0.0056 26.46 x x x - x x 400A 32 VDC PSE: 100A 100VAC 12.0 012. 65 0.0049 47.97 x x - - x x 150A 65VDC 15.0 015. 65 100A 65VAC 0.0037 97.82 x x - - - - 400A 32VDC 20.0 020. 65 0.00244 154 x - - - x x Notes: 2 - l t calculated at 8ms. - Resistance is measured at 10% of rated current, 25C 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 11/05/20