Surface Mount Fuses NANO2® > Very Fast-Acting Fuse > 451/453 Series 451/453 Series Fuse RoHS PS E Description The Nano2® SMF Fuse is a very small, Wire-in-Air (WIA) square shape surface mount fuse which is very suitable for the secondary side circuit over-current protection applications and is designed for PCB using surface mount technology. Features • Very fast acting • Small size Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 6.3A - 20A 29862 0.062A - 15A NBK030205-E10480A/B NBK101105-E184655 1A - 5A 6.3A - 15A E10480 0.062A - 5A PS E Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time 100% 0.062 – 20 4 hours, Minimum 0.062 – 10 5 sec., Maximum 12 – 20 20 sec., Maximum 200% • Wide range of current rating available (0.062A to 20A) • Low temperature rerating • RoHS compliant and Halogen Free • Wide operating temperature range Applications • Notebook PC • Storage system • LCD/PDP TV • Telecom system • LCD monitor • Wireless basestation • LCD/PDP panel • White goods • LCD backlight inverter • Game console • Portable DVD player • Office Automation equipment • Power supply •Networking • PC server • Cooling fan system • Battery charging circuit protection • Industrial equipment Additional Information Datasheet 451 Series Resources 451 Series Samples 451 Series Datasheet 453 Series Resources 453 Series Samples 453 Series © 2015 Littelfuse, Inc. Specifications are subject tostrongly change without notice. Specifications are subject to change without notice. Application testing is recommended. Revised: 09/10/15 Surface Mount Fuses NANO2® > Very Fast-Acting Fuse > 451/453 Series Electrical Specifications by Item Ampere Rating (A) Amp Code 0.062 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.375 0.400 0.500 0.630 0.750 0.800 1.00 1.25 1.50 1.60 2.00 2.50 3.00 3.15 3.50 4.00 5.00 6.30 .062 .080 .100 .125 .160 .200 .250 .315 .375 .400 .500 .630 .750 .800 001. 1.25 01.5 01.6 002. 02.5 003. 3.15 03.5 004. 005. 06.3 Max Voltage Rating (V) 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 7.00 007. 125 8.00 008. 125 Interrupting Rating 50A @125VAC/VDC 300A @32VDC PSE: 100A @100VAC 50A @125VAC/VDC 10,000A @75VDC 300A @32VDC PSE: 100A @100VAC 50A @125VAC/VDC 400A @32VDC PSE: 100A @100VAC 10.0 010. 125 35A @125 VAC/ 50A @125 VDC 400A @32 VDC PSE: 100A @100VAC 12.0 15.0 20.0 012. 015. 020. 65 65 65 150A @65VDC 100A @65VAC 400A @32VDC Notes: - l2t calculated at 8ms. - Resistance is measured at 10% of rated current, 25ºC © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/10/15 Nominal Cold Resistance (Ohms) 5.5000 4.0500 3.1000 1.7000 1.2157 0.8372 0.5765 0.3918 0.6100 0.5600 0.4200 0.3050 0.2450 0.2120 0.1530 0.0780 0.0630 0.0580 0.0367 0.0286 0.0227 0.0215 0.0200 0.0160 0.0125 0.0096 Agency Approvals Nominal Melting I2t (A2sec) 0.00019 0.00033 0.00138 0.00286 0.0048 0.0089 0.0158 0.0311 0.0442 0.0551 0.0824 0.1381 0.2143 0.2654 0.6029 0.664 0.853 1.060 0.530 1.029 1.650 1.920 2.469 3.152 5.566 9.170 PS E x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 0.0090 10.32 x x x 0.0077 20.23 x x x 0.0056 26.46 x x x 0.0049 0.0037 0.00244 47.97 97.82 154 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Surface Mount Fuses NANO2® > Very Fast-Acting Fuse > 451/453 Series Temperature Re-rating Curve Average Time Current Curves 62mA 80mA 100mA 125mA 160mA 200mA 250mA 315mA 375mA 400mA 500mA 630mA 750mA 800mA 1A 1.25A 1.5A 1.6A 2A 2.5A 3A 3.15A 3.5A 4A 5A 6.3A 7A 8A 10A 12A 15A 20A Fast Acting Series TC Curve 100 10 TIME IN SECONDS 1 0.1 Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.01 0.001 0.01 0.1 1 10 100 1000 10000 CURRENT IN AMPS Soldering Parameters Pre Heat Pb – Free assembly - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 120 secs Average ramp up rate (Liquidus Temp (TL) to peak 5°C/second max. TS(max) to TL - Ramp-up Rate 5°C/second max. Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 90 seconds Critical Zone TL to TP Ramp-up TL TS(max) tL Ramp-down TS(min) Preheat tS 25 Peak Temperature (TP) 260 Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds +0/–5 tP TP Temperature Reflow Condition time to peak temperature (t 25ºC to peak) Time °C Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Wave Soldering Parameters 260°C Peak Temperature, 10 seconds max. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/10/15 Surface Mount Fuses NANO2® > Very Fast-Acting Fuse > 451/453 Series Product Characteristics Body: Ceramic Terminations: Gold-Plated Caps / Sn-dipped Silver Plated Caps (451 RoHS/HF series) SnPb Plated Caps (for 451 Non-RoHS series, 375mA-15A) Silver-plated Caps (451MR RoHS ratings below 375mA and 453 RoHS Series) Materials Brand, Ampere Rating Product Marking Operating Temperature Moisture Sensitivity Level Thermal Shock MIL-STD-202, Method 107, Test Condition B, 5 cycles, -65°C / +125°C, 15 minutes @ each extreme Mechanical Shock MIL-STD-202, Method 213, Test I: Deenergized. 100G’s pk amplitude, sawtooth wave 6ms duration, 3 cycles XYZ+xyz = 18 shocks Vibration MIL-STD-202, Method 201: 0.03” amplitude, 10-55 Hz in 1 min. 2hrs each XYZ=6hrs Moisture Resistance MIL-STD-202, Method 106, 10 cycles Salt Spray MIL-STD-202, Method 101, Test Condition B (48hrs) Resistance to Soldering Heat MIL-STD-202, Method 210, Test condition B (10 sec at 260°C) –55°C to 125°C Level 1, J-STD-020 Solderability MIL-STD-202, Method 208 Insulation Resistance (after Opening) MIL-STD-202, Method 302, Test Condition A (10,000 ohms minimum) Dimensions Part Numbering System 6.10 ± .20 (.240") F 7A 0451 001. M R L 2.69 ± .25 (.106") 2.69 ± .25 (.106") 1.45 (.057") 451 = Gold / SnPb / Silver Plated Caps 453 = Silver Plated Caps AMP Code Refer to Electrical characteristics table 6.86 (.270") QUANTITY Code 3.15 (.124") 1.96 (.077") SERIES M = 1000 pcs N = 5000 pcs 2.95 (.116") PACKAGING Code R = Tape and Reel L-RoHS Compliant & Halogen Free (Gold Plated Caps) Recommended pad layout SN-RoHS Compliant & Halogen Free (Sn-dipped Caps) NOTE: “L” suffix applies to 451 series only - 451 series may be ordered as either “RoHS and HF” (“L” suffix) or non-RoHS (no suffix) version. - 453 series is available only as RoHS compliant version and does not require “L” suffix. Please do not include “L” suffix within 453 series ordering instructions. Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code 12mm Tape and Reel EIA RS-481-2 (IEC 286, part 3) 5000 NR 12mm Tape and Reel EIA RS-481-2 (IEC 286, part 3) 1000 MR © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/10/15