? 2013 littelfuse, inc. specifcations are subject to change without notice. revised: 11/05/13 the 1812l series ptc provides surface mount overcurrent protection for applications where resettable protection is desired. electrical characteristics part number marking i hold (a) i trip (a) v max (vdc) i max (a) p d typ. (w) max. time to trip resistance agency approvals current (a) time (sec.) r min () r 1max () 1812l010 lf010 0.10 0.30 30 100 0.8 0.50 1.50 1.600 15.000 x x 1812l010/60 lf010-60 0.10 0.30 60 10 0.8 0.50 1.50 1.600 15.000 x x 1812l014 lf014 0.14 0.34 60 10 0.8 1.50 0.15 1.500 6.000 x x 1812l020 lf020 0.20 0.40 30 100 0.8 8.00 0.02 0.800 5.000 x x 1812l020/60 lf020-60 0.20 0.40 60 40 0.8 1. 0 0 2.00 1.400 4.400 x x 1812l035/30 lf035-30 0.35 0.75 30 100 0.8 8.00 0.15 0.400 1.700 x x 1812l050 1 lf050 0.50 1. 0 0 15 100 0.8 8.00 0.15 0.150 1.000 x x 1812l050/30 lf050-30 0.50 1. 0 0 30 100 0.8 8.00 0.15 0.150 1.000 x x 1812l075 1 lf075 0.75 1.50 13.2 100 0.8 8.00 0.20 0.100 0.450 x x 1812l075/24 lf075-24 0.75 1.50 24 100 0.8 8.00 0.20 0.110 0.290 x x 1812l075/33 lf075-33 0.75 1.50 33 20 0.8 8.00 0.20 0.110 0.400 x x 1812l110 1 lf110 1. 10 2.20 8 100 0.8 8.00 0.30 0.040 0.210 x x 1812l110/16 lf110-16 1. 10 1.95 16 100 0.8 8.00 0.30 0.060 0.180 x x 1812l110/24 lf110-24 1. 10 1.95 24 20 0.8 8.00 0.50 0.060 0.200 x x 1812l110/33 lf110-33 1. 10 1.95 33 20 0.8 8.00 0.50 0.060 0.200 x x 1812l125/6 lf125-6 1.25 2.50 6 100 0.8 8.00 0.40 0.050 0.140 x x 1812l125 /16 lf125 1.25 2.50 16 100 0.8 8.00 0.40 0.050 0.140 x x 1812l150 1 lf150 1.50 3.00 8 100 0.8 8.00 0.30 0.040 0.110 x x 1812l150/12 lf150-12 1.50 3.00 12 100 0.8 8.00 0.50 0.040 0.110 x x 1812l150/24 lf150-24 1.50 3.00 24 20 0.8 8.00 1.50 0.040 0.120 x x 1812l160 1 lf160 1.60 2.80 8 100 0.8 8.00 1. 0 0 0.030 0.100 x x 1812l160/12 lf160-12 1.60 2.80 12 100 0.8 8.00 1. 0 0 0.030 0.100 x x 1812l200th 1 lf200 2.00 3.50 8 100 0.8 8.00 2.00 0.020 0.070 x x description applications ? plug and play protection for motherboards and peripherals ? usb peripherals ? pci cards ? game console port protection agency approvals agency agency file number e183209 r50119118 features ? rohs compliant, lead-free and halogen-free ? fast response ? compact design ? low resistance ? low-profle ? compatible with high temperature solders i hold = hold current: maximum current device will pass without tripping in 20c still air. i trip = trip current: minimum current at which the device will trip in 20c still air. v max = maximum voltage device can withstand without damage at rated current (i max) i max = maximum fault current device can withstand without damage at rated voltage (v max ) p d = power dissipated from device when in the tripped state at 20c still air. r min = minimum resistance of device in initial (un-soldered) state. r typ = typical resistance of device in initial (un-soldered) state. r 1max = maximum resistance of device at 20c measured one hour after tripping or refow soldering of 260c for 20 sec. caution: operation beyond the specifed rating may result in damage and possible arcing and fame. 1 some older references to these devices may include Cc in the part number. the Cc should be omitted when placing new orders for the device. continues on next page. 1812l series r ohs poly-fuse ? resettable ptcs 1812l series surface mount > 1812l series
? 2013 littelfuse, inc. specifcations are subject to change without notice. revised: 11/05/13 ambient operation temperature -40c -20c 0c 20c 40c 50c 60c 70c 85c part number hold current (a) 1812l010 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.03 1812l010/60 0.14 0.13 0.11 0.10 0.09 0.08 0.07 0.07 0.05 1812l014 0.23 0.19 0.17 0.14 0.12 0.10 0.09 0.08 0.06 1812l020 0.29 0.26 0.23 0.20 0.17 0.15 0.14 0.12 0.10 1812l020/60 0.30 0.27 0.23 0.20 0.17 0.14 0.13 0.11 0.08 1812l035/30 0.50 0.45 0.40 0.35 0.30 0.26 0.24 0.20 0.16 1812l050 0.77 0.68 0.59 0.50 0.44 0.40 0.37 0.33 0.29 1812l050/30 0.77 0.68 0.59 0.50 0.44 0.40 0.37 0.33 0.29 1812l075 1. 15 1. 01 0.88 0.75 0.65 0.60 0.55 0.49 0.43 1812l075/24 1.06 0.95 0.84 0.75 0.60 0.55 0.50 0.45 0.37 1812l075/33 1. 10 1. 0 0 0.88 0.75 0.66 0.60 0.56 0.47 0.36 1812l110 1.59 1.43 1.26 1. 10 0.95 0.87 0.80 0.71 0.60 1812l110/16 1.58 1.43 1.27 1. 10 0.95 0.85 0.77 0.71 0.58 1812l110/24 1.55 1.40 1.25 1. 10 0.93 0.83 0.73 0.63 0.50 1812l110/33 1.55 1.40 1.25 1. 10 0.93 0.83 0.73 0.63 0.50 1812l125/6 2.00 1.75 1.52 1.25 1. 0 0 0.95 0.90 0.75 0.53 1812l125/16 2.00 1.75 1.52 1.25 1. 0 0 0.95 0.90 0.75 0.53 1812l150 2.06 1.93 1.79 1.50 1.28 1. 10 1.02 0.80 0.68 1812l150/12 2.04 1.88 1.68 1.50 1.25 1. 10 1. 0 0 0.80 0.60 1812l150/24 2.05 1.87 1.67 1.50 1.25 1.08 0.95 0.77 0.60 1812l160 2.20 2.06 1.91 1.60 1.36 1. 17 1.09 0.85 0.72 1812l160/12 2.20 2.06 1.91 1.60 1.36 1. 17 1.09 0.85 0.72 1812l200th 2.60 2.44 2.22 2.00 1,78 1.67 1.50 1.45 1.29 1812l200/12 2.80 2.60 2.36 2.00 1.72 1.56 1.40 1.20 1.04 1812l200/16 2.80 2.60 2.36 2.00 1.72 1.56 1.40 1.20 1.04 1812l260th 3.40 3.16 3.00 2.60 2.30 2.15 2.00 1.85 1.63 1812l260/12 3.40 3.16 3.00 2.60 2.30 2.15 2.00 1.85 1.63 1812l260/16 3.66 3.30 2.96 2.60 2.23 2.06 1.89 1.61 1.30 1812l300 4.13 3.75 3.30 3.00 2.61 2.43 2.25 2.00 1.78 temperature rerating notes: the temperature rerating data is only for reference, please contact littelfuse technical support for detail temperature rerating information. electrical characteristics part number marking i hold (a) i trip (a) v max (vdc) i max (a) p d typ. (w) max. time to trip resistance agency approvals current (a) time (sec.) r min () r 1max () 1812l200/12 lf200-12 2.00 3.50 12 100 1. 0 8.00 2.00 0.020 0.070 x x 1812l200/16 lf200-16 2.00 3.50 16 100 1. 0 8.00 2.00 0.020 0.070 x x 1812l260th 1 lf260 2.60 5.00 8 100 0.8 8.00 2.50 0.015 0.047 x x 1812l260/12 lf260-12 2.60 5.00 12 100 0.8 8.00 5.00 0.015 0.055 x x 1812l260/16 lf260-16 2.60 5.00 16 100 1. 2 8.00 5.00 0.015 0.050 x x 1812l300 lf300 3.00 5.00 6 100 0.8 8.00 4.00 0.012 0.040 x x i hold = hold current: maximum current device will pass without tripping in 20c still air. i trip = trip current: minimum current at which the device will trip in 20c still air. v max = maximum voltage device can withstand without damage at rated current (i max) i max = maximum fault current device can withstand without damage at rated voltage (v max ) p d = power dissipated from device when in the tripped state at 20c still air. r min = minimum resistance of device in initial (un-soldered) state. r typ = typical resistance of device in initial (un-soldered) state. r 1max = maximum resistance of device at 20c measured one hour after tripping or refow soldering of 260c for 20 sec. caution: operation beyond the specifed rating may result in damage and possible arcing and fame. 1 some older references to these devices may include Cc in the part number. the Cc should be omitted when placing new orders for the device. poly-fuse ? resettable ptcs surface mount > 1812l series
? 2013 littelfuse, inc. specifcations are subject to change without notice. revised: 11/05/13 temperature rerating curve -40 -30 -20 -1 00 10 20 30 40 50 60 70 80 85 10 % 30% 50% 70% 90% 11 0% 1 30% 1 50% 1 70% t emperature (c) percentage of rated current environmental specifcations operating/storage temp. -40c to +85c max. device surface temp. in tripped state 125c passive aging +85c, 1000 hours -/+5% typical resistance change humidity aging +85c, 85% r.h.,1000 hours -/+5% typical resistance change thermal shock milCstdC202, method 107g +85c/-40c 20 times -30% typical resistance change solvent resistance milCstdC202, method 215, no change vibration milCstdC883c, method 2007.1, condition a, no change moisture level sesitivity level 1, jCstdC020c physical specifcations terminal material solder-plated copper (solder material: matte tin (sn)) lead solderability meets eia specifcation rs186-9e, ansi/ j-std-002 category 3. soldering parameters condition refow 260c / 10 sec 60 sec ~ 100 sec preheat 120c~ 180c 50 sec ~ 150 sec storae condition 0c~35c, < = 70%rh ? recommended refow methods: ir, vapor phase oven, hot air oven, n 2 environment for leadCfree ? recommended maximum paste thickness is 0.25mm (0.010 inch) ? devices can be cleaned using standard industry methods and solvents. note: if refow temperatures exceed the recommended profle, devices may not meet the performance requirements. preheating 120 18 0 220 260 0 60 to 100 t emperature ( c) soldering cooling 120 50 to 150 time(s) poly-fuse ? resettable ptcs 1812l series surface mount > 1812l series
? 2013 littelfuse, inc. specifcations are subject to change without notice. revised: 11/05/13 average time current curves the average time current curves and temperature rerating curve performance is affected by a number or variables, and these curves provided as guidance only. customer must verify the performance in their application. 1812l 0.01 0.1 1 10 100 0.1 1 10 100 current in amperes time in seconds 1812l 0.01 0.1 10 100 0.1 1 10 100 current in amperes time in seconds 0.50a 0.75a 1.10a/16v 1.25a/16v 1.50a/12v 1.10a 1.25a/6v 1.50a 1.60a 2.00a 2.60a, 2.60a/12v 2.60a/16v 3.00a 0.10 0.10/60 0.14 0.20/60 0.20 0.35/30 0.50/30 0.75/33 0.75/24 1.10/33 1.10/24 1.50/24 2.00/12 1812l 0.01 0.1 1 10 100 0.1 1 10 100 current in amperes time in seconds 1812l 0.01 0.1 10 100 0.1 1 10 100 current in amperes time in seconds 0.50a 0.75a 1.10a/16v 1.25a/16v 1.50a/12v 1.10a 1.25a/6v 1.50a 1.60a 2.00a 2.60a, 2.60a/12v 2.60a/16v 3.00a 0.10 0.10/60 0.14 0.20/60 0.20 0.35/30 0.50/30 0.75/33 0.75/24 1.10/33 1.10/24 1.50/24 2.00/12 poly-fuse ? resettable ptcs surface mount > 1812l series
? 2013 littelfuse, inc. specifcations are subject to change without notice. revised: 11/05/13 part number a b c d e inches mm inches mm inches mm inches mm inches mm min max min max min max min max min max min max min max min max min max min max 1812l010 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l010/60 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1. 2 0.006 0.03 0.15 0.65 1812l014 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.08 0.75 1.95 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l020 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.55 1 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l020/60 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1. 2 0.006 0.03 0.15 0.65 1812l035/30 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.6 1.25 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l050 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.5 0.75 0.01 0.05 0.3 1. 2 0.01 0.02 0.15 0.5 1812l050/30 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.5 1 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l075 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.5 0.75 0.01 0.05 0.3 1. 2 0.01 0.02 0.15 0.5 1812l075/24 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.06 0.75 1.55 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l075/33 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.06 0.75 1.55 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l110 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.5 0.71 0.01 0.05 0.3 1. 2 0.01 0.02 0.15 0.5 1812l110/24 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.5 1.07 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l110/16 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l110/33 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.05 0.08 1. 2 2 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l125/6 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.45 0.75 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l125/16 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1. 2 0.01 0.02 0.15 0.5 1812l150 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.4 0.71 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l150/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l150/24 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.07 0.8 1. 8 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l160 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.03 0.4 0.75 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l160/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.75 1.25 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l200th 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.008 0.024 0.2 0.6 0.01 0.05 0.3 1. 2 0.01 0.02 0.15 0.5 1812l200/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.80 1.20 0.012 0.047 0.30 1.20 0.006 0.026 0.15 0.65 1812l200/16 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.80 1.20 0.012 0.047 0.30 1.20 0.006 0.026 0.15 0.65 1812l260th 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.02 0.04 0.5 1. 0 0.01 0.05 0.3 1. 2 0.01 0.02 0.15 0.5 1812l260/12 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.05 0.8 1.34 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 1812l260/16 0.18 0.19 4.54 4.90 0.12 0.14 3.16 3.50 0.05 0.08 1.20 2.00 0.012 0.047 0.30 1.20 0.006 0.026 0.15 0.65 1812l300 0.17 0.19 4.37 4.73 0.12 0.13 3.07 3.41 0.03 0.06 0.8 1.50 0.01 0.05 0.3 1. 2 0.01 0.03 0.15 0.65 dimensions c to p v iew pa d layout side v iew bot tom v iew 3.1 5 mm (.1 24?) 3.45 mm (.1 35?) 1 .78mm (.070?) d marking code v aries with ampera ge and vo lt a ge ra ting (s ee electrical characteristics t able) sho wn are: - 1 .1a/6v ra ting (left) - 1 .1a/33v ra ting (right) e a b 110 110 110 -33 poly-fuse ? resettable ptcs 1812l series surface mount > 1812l series
? 2013 littelfuse, inc. specifcations are subject to change without notice. revised: 11/05/13 packaging part number ordering number halogen free i hold (a) i hold code voltage option packaging option quantity quantity & packaging code 1812l010 1812l010dr ye s 0.10 010 tape and reel 1500 dr 1812l010/60 1812l010/60dr ye s 0.10 010 /60 1500 dr 1812l014 1812l014dr ye s 0.14 014 1500 dr 1812l020 1812l020pr ye s 0.20 020 2000 pr 1812l020/60 1812l020/60dr ye s 0.20 020 /60 1500 dr 1812l035/30 1812l035/30dr ye s 0.35 035 /30 1500 dr 1812l050 1812l050pr ye s 0.50 050 2000 pr 1812l050/30 1812l050/30pr ye s 0.50 050 /30 2000 pr 1812l075 1812l075pr ye s 0.75 075 2000 pr 1812l75/24 1812l075/24dr ye s 0.75 075 /24 1500 dr 1812l75/33 1812l075/33dr ye s 0.75 075 /33 1500 dr 1812l110 1812l110pr ye s 1. 10 110 2000 pr 1812l110/16 1812l110/16dr ye s 1. 10 110 /16 1500 dr 1812l110/24 1812l110/24dr ye s 1. 10 1. 10 /24 1500 dr 1812l110/33 1812l110/33mr ye s 1. 10 110 /33 1000 mr 1812l125/6 1812l125/6pr ye s 1.25 125 /6 2000 pr 1812l125/16 1812l125/16dr ye s 1.25 125 /16 1500 dr 1812l150 1812l150zr ye s 1.50 150 2000 zr 1812l150/12 1812l150/12dr ye s 1.50 150 /12 1500 dr 1812l150/24 1812l150/24mr ye s 1.50 150 /24 1000 mr 1812l160 1812l160pr ye s 1.60 160 2000 pr 1812l160/12 1812l160/12dr ye s 1.60 160 /12 1500 dr 1812l200th 1812l200thpr ye s 2.00 200 2000 pr 1812l200/12 1812l200/12dr ye s 2.00 200 /12 1,500 dr 1812l200/16 1812l200/16dr ye s 2.00 200 1,500 dr 1812l260th 1812l260thdr ye s 2.60 260 1500 dr 1812l260/12 1812l260/12mr ye s 2.60 260 /12 1000 mr 1812l260/16 1812l260/16mr ye s 2.60 260 1,000 mr 1812l300 1812l300mr ye s 3.00 300 1000 mr part ordering number system pa ckaging st yle size l: littelfuse surface mount pptc i hold hold current code (refer to electrical characteristics table) /xx: special voltage rating (not applicable to all parts. refer to electrical characteristics table) quantity code: k=10,000 y=4,000 w=3,000 p=2,000 r: tape & reel series 1206 l 380 /12 th y r thin profile (not applicable to all parts) poly-fuse ? resettable ptcs surface mount > 1812l series
? 2013 littelfuse, inc. specifcations are subject to change without notice. revised: 11/05/13 tape and reel specifcations tape specifications: eia-481-1 (mm) reel dimensions: eia-481-1 (mm) 1812l020 1812l035/30 1812l050 1812l075 1812l110 1812l125/6 1812l150 1812l160 1812l200 1812l010 1812l010/60 1812l014 1812l020/60 1812l050/30 1812l075/24 1812l075/33 1812l110/16 1812l110/24 1812l125/16 1812l150/12 1812l160/12 1812l200/12 1812l200/16 1812l260 1812l110/33 1812l150/24 1812l260/12 1812l260/16 1812l300 w 12.00 +0.30/-0.10 12.00 0.30 12.00 0.30 h 16.0+/- 0.02 f 5.50 0.05 5.50 0.05 5.50 0.05 w 13.2+/- 1.5 e 1 1.75 0.10 1.75 0.10 1.75 0.10 d ?60.2+0.5 d 0 1.50+0.10 1.55+/- 0.05 1.55 0.05 f ?13.0 +/- 0.5 d 1 1.50+0.25 1.50 (min) 1.50 (min) c ?178 +/- 1.0 p 0 4.00 0.10 4.00 0.10 4.00 0.10 h 1 11+/- 0.5 p 1 8.00 0.10 8.00 0.10 8.00 0.10 w 1 2.5+/- 0.5 p 2 2.00 0.05 2.00 0.05 2.00 0.05 w 2 3.0+0.5 a 0 3.58 0.10 3.58 0.10 3.58 0.10 w 3 4.0+0.5 b 0 4.93 0.10 4.93 0.10 4.93 0.10 w 4 5.0+0.5 t 0.25 0.10 0.25 0.10 0.25 0.10 k 0 0.87 0.06 1.25 0.10 2.10 0.10 leader min. 390 390 390 trailer min. 160 160 160 w 4 w 2 w 3 w 1 f h 1 w c d h d 2 k 0 b 0 a 0 t f w e 1 p 2 d 0 p 0 p 1 tape and reel diagram poly-fuse ? resettable ptcs 1812l series surface mount > 1812l series
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