0603SFS400F/32-2

SURFACE-MOUNT FUSES Slow-Blow Chip Fuses Available in industry standard 1206 and 0603 chip sizes, Littelfuse slow-blow chip fuses help provide overcurrent protection on systems that experience large and frequent current surges as part of their normal operation. The slow-blow chip fuse’s monolithic, multilayer design helps provide some of the highest current ratings available in the 1206 and 0603 footprints and enhances high-temperature performance in a wide range of circuit protection designs. The devices’ small size, high reliability and strong arc suppression characteristics make them suitable for overcurrent protection of power supplies, capacitor filter banks, Liquid Crystal Display (LCD) backlight inverters, electric motors and portable electronics. BENEFITS APPLICATIONS • Time-delayed design prevents nuisance openings in pulsed and high inrush current applications • Small motors systems • Small size with high-current ratings • Input power ports • Strong arc suppression characteristics • Power over Ethernet (PoE) • Portable electronics • Test equipment FEATURES • POL converter protection • Lead-free materials and RoHS compliant • Computer drives • Halogen free (refers to: Br900ppm, Cl900ppm, Br+Cl1500ppm) • Displays • Printers • Monolithic multilayer design • High-temperature performance • -55°C to +125°C operating temperature range RoHS Compliant, ELV Compliant HF Halogen Free Specifications subject to change without notice. ©2016 Littelfuse, Inc. 107 Surface Mount Fuses Slow-Blow Chip Fuses Shape and Dimensions in (mm) 0.063±0.008 (1.60±0.20) 0.126±0.008 (3.20±0.20) Table FS1 — Clear Time Characteristics 0603SFS Series 1206SFS Series 0.038±0.008 Clear Time(0.97±0.20) at 25°C % of Rated Current 100% 4 hrs (min) 200% 800% (1.0A-1.5A) Recommended Pad Layout 800% (2.0A-5.0A) in (mm) Clear Time at 25°C 100% 4 hrs (min) 1 s (min) 120 s (max) 200% 1 s (min) 120 s (max) (min) 3 s (max) 300% 0.1 s (min) 3 s (max) 0.0005 s (min) 0.05 s (max) 800% (1.0A-1.5A) 0.0016 s (min) 0.05 s (max) 0.001 s (min) 0.05 s (max) 800% (2.0A-8.0A) 0.002 s (min) 0.05 s (max) 0.020±0.010 (0.51±0.25) 0.1 s 300% % of Rated Current — 0.173 (4.40) 0.059 (1.50) — 0.071 (1.80) Table FS2 — Typical Electrical Characteristics, Dimensions and Recommended Pad Layout 0.057 (1.45) 0603 (1608 mm) Slow-Blow Chip Fuses Shape and Dimensions in (mm) 0.031±0.006 (0.80±0.15) Typical Electrical Characteristics 0.063±0.006 (1.60±0.15) Part Number Current (A) 1.0 0.200 0.093 32 50 1.5 0.100 0.18 32 50 0603SFS200F/32 2.0 0.052 0.32 32 50 0603SFS250F/32 2.5 0.041 0.63 32 50 0.110 (2.80) 0603SFS300F/32 3.0 0.031 0.87 32 50 0.024 (0.60) 0603SFS350F/32 3.5 0.021 1.20 32 50 0603SFS400F/32 4.0 0.017 2.30 32 50 0603SFS450F/32 4.5 0.015 2.70 32 50 0603SFS500F/32 5.0 0.013 3.20 32 50 0.039 (1.00) 0.043 (1.09) 1206 (3216 mm) Slow-Blow Chip Fuses 0.063±0.008 (1.60±0.20) Typical Electrical Characteristics 0.126±0.008 (3.20±0.20) Part Number Rated Current (A) Nominal Nominal Cold DCR I 2t (Ω)* (A2sec)† Max Interrupt Ratings Voltage (VDC) Current (A) 1206SFS100F/63 1.0 0.360 0.11 63 50 1206SFS125F/63 1.25 0.200 0.22 63 50 1206SFS150F/63 1.5 0.150 0.23 63 50 1206SFS200F/63 2.0 0.088 0.63 63 50 1206SFS250F/32 2.5 0.065 0.90 32 50 1206SFS300F/32 3.0 0.034 1.20 32 50 1206SFS350F/32 3.5 0.028 1.60 32 50 0.173 (4.40) 1206SFS400F/32 4.0 0.024 2.20 32 50 0.059 (1.50) 1206SFS450F/32 4.5 0.020 3.60 32 50 1206SFS500F/32 5.0 0.016 5.30 32 50 1206SFS550F/24 5.5 0.014 6.40 24 50 1206SFS600F/24 6.0 0.011 8.50 24 60 1206SFS700F/24 7.0 0.010 10.00 24 60 1206SFS800F/24 8.0 0.009 16.90 24 60 0.038±0.008 (0.97±0.20) 0.020±0.010 (0.51±0.25) Recommended Pad Layout in (mm) Voltage (VDC) 0603SFS150F/32 0.014±0.006 (0.36±0.15) Shape and Dimensions in (mm) Nominal Nominal Cold DCR I 2t (Ω)* (A2sec)† 0603SFS100F/32 0.031±0.006 (0.80±0.15) Recommended Pad Layout in (mm) Rated Current (A) Max Interrupt Ratings 0.071 (1.80) 0.057 (1.45) * Measured at ≤10% of rated current and 25°C ambient temperature. † Melting I2t at 0.001 sec clear time. Shape and Dimensions in (mm) 0.031±0.006 (0.80±0.15) 0.063±0.006 (1.60±0.15) 0.031±0.006 (0.80±0.15) 108 Specifications subject to change without notice. ©2016 Littelfuse, Inc. 0.014±0.006 (0.36±0.15) HF Halogen Free RoHS Compliant, ELV Compliant Surface Mount Fuses Slow-Blow Chip Fuses Figures FS1-FS4 — Family Performance Curves Figure FS1 A 2. 5 3.0A A 3.5 A 4.0 A 4.5 A 5.0 A 2. 0 1.5 A 1.0 A 0603SFS Average Time Current Curves 100 Clear Time (s) 10 1 0.1 0.01 0.001 1 10 100 Current (A) Figure FS2 0603SFS I²t vs. t Curves 0603SFS Family I2T vs. Clear Time 10,000 10,000 5.0A 4.5A 5.0A 4.0A 4.5A 3.5A 4.0A 3.0A 3.5A 2.5A 3.0A 2.0A 2.5A 2.0A 1.5A 1000 1000 1.5A 1.0A 1.0A I2t (A I2t2Sec) (A2s) 100 100 10 10 1 1 0.1 0.1 0.01 0.010.001 0.00001 0.0001 0.01 0.001 0.1 0.01 Time (s) Time (Sec) 0.1 1 1 10 10 100 100 Note: Curves are nominal. RoHS Compliant, ELV Compliant HF Halogen Free Specifications subject to change without notice. ©2016 Littelfuse, Inc. 109 Surface Mount Fuses Slow-Blow Chip Fuses Figures FS1-FS4 — Family Performance Curves (Cont’d) Figure FS3 A A 3.0 3 . 5A 4.0A 4.5A 5.0 A 5 . 5A 6 .0 A 7.0 A A 8 .0 A 2. 5 2. 0 1. 2 5A 1.5 A 1.0 A 1206SFS Average Time Current Curves 100 10 Clear Time (s) 1 0.1 0.01 0.001 1 10 1000 100 Current (A) Figure FS4 1206SFS I²t vs. t Curves 100000 8.0A 7.0A 6.0A 5.5A 5.0A 4.5A 4.0A 3.5A 3.0A 2.5A 2.0A 1.5A 1.25A 1.0A 10000 1000 I2t (A2s) 100 10 1 0.1 0.01 0.001 0.01 0.1 1 10 100 Time (s) Note: Curves are nominal. 110 Specifications subject to change without notice. ©2016 Littelfuse, Inc. HF Halogen Free RoHS Compliant, ELV Compliant Surface Mount Fuses Slow-Blow Chip Fuses Notice: 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. RoHS Compliant, ELV Compliant HF Halogen Free Specifications subject to change without notice. ©2016 Littelfuse, Inc. 111