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39 revised: june 3, 2012 poly-fuse ? resettable ptcs ? 2012 littelfuse, inc 1812l series surface mount > 1812l series 1812l series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/1812l.html for current information. 1812l series 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 xx 1812l010/60 lf010-60 0.10 0.30 60 10 0.8 0.50 1.50 1.600 15.000 xx 1812l014 lf014 0.14 0.34 60 10 0.8 1.50 0.15 1.500 6.000 xx 1812l020 lf020 0.20 0.40 30 100 0.8 8.00 0.02 0.800 5.000 xx 1812l020/60 lf020-60 0.20 0.40 60 40 0.8 1.00 2.00 1.400 4.400 xx 1812l035/30 lf035-30 0.35 0.75 30 100 0.8 8.00 0.15 0.400 1.700 xx 1812L050 1 lf050 0.50 1.00 15 100 0.8 8.00 0.15 0.150 1.000 xx 1812L050/30 lf050-30 0.50 1.00 30 100 0.8 8.00 0.15 0.150 1.000 xx 1812l075 1 lf075 0.75 1.50 13.2 100 0.8 8.00 0.20 0.100 0.450 xx 1812l075/24 lf075-24 0.75 1.50 24 100 0.8 8.00 0.20 0.110 0.290 xx 1812l075/33 lf075-33 0.75 1.50 33 20 0.8 8.00 0.20 0.110 0.400 xx 1812l110 1 lf110 1.10 2.20 8 100 0.8 8.00 0.30 0.040 0.210 xx 1812l110/16 lf110-16 1.10 1.95 16 100 0.8 8.00 0.30 0.060 0.180 xx 1812l110/24 lf110-24 1.10 1.95 24 20 0.8 8.00 0.50 0.060 0.200 xx 1812l110/33 lf110-33 1.10 1.95 33 20 0.8 8.00 0.50 0.060 0.200 xx 1812l125/6 lf125-6 1.25 2.50 6 100 0.8 8.00 0.40 0.050 0.140 xx 1812l125 /16 lf125 1.25 2.50 16 100 0.8 8.00 0.40 0.050 0.140 xx 1812l150 1 lf150 1.50 3.00 8 100 0.8 8.00 0.30 0.040 0.110 xx 1812l150/12 lf150-12 1.50 3.00 12 100 0.8 8.00 0.50 0.040 0.110 xx 1812l150/24 lf150-24 1.50 3.00 24 20 0.8 8.00 1.50 0.040 0.120 xx 1812l160 1 lf160 1.60 2.80 8 100 0.8 8.00 1.00 0.030 0.100 xx 1812l160/12 lf160-12 1.60 2.80 12 100 0.8 8.00 1.00 0.030 0.100 xx 1812l200th 1 lf200 2.00 3.50 8 100 0.8 8.00 2.00 0.020 0.070 xx 1812l200/12 lf200-12 2.00 3.50 12 100 1.0 8.00 2.00 0.020 0.070 xx 1812l260th 1 lf260 2.60 5.00 8 100 0.8 8.00 2.50 0.015 0.047 xx 1812l260/12 lf260-12 2.60 5.00 12 100 0.8 8.00 5.00 0.015 0.055 xx 1812l300 lf300 3.00 5.00 6 100 0.8 8.00 4.00 0.012 0.040 xx description applications t1mvhboeqmb zqspufdujpo for motherboards and peripherals t64#qfsjqifsbmt t1$*dbset t(bnfdpotpmfqpsu protection agency approvals agency agency file number e183209 r50119118 features t3 p)4dpnqmjbou mfbegsff boeibmphfogsff t'btusftqpotf t$pnqbdueftjho t-pxsftjtubodf t-pxqspmmf t$pnqbujcmfxjuiijhi temperature solders * hold )pmedvssfounbyjnvndvssfouefwjdfxjmmqbttxjuipvuusjqqjohjo?$tujmmbjs * trip 5sjqdvssfounjojnvndvssfoubuxijdiuifefwjdfxjmmusjqjo?$tujmmbjs v max .byjnvnwpmubhfefwjdfdboxjuituboexjuipvuebnbhfbusbufedvssfou *nby
* max .byjnvngbvmudvssfouefwjdfdboxjuituboexjuipvuebnbhfbusbufewpmubhf 7 max
p d 1pxfsejttjqbufegspnefwjdfxifojouifusjqqfetubufbu?$tujmmbjs 3 min .jojnvnsftjtubodfpgefwjdfjojojujbm votpmefsfe
tubuf 3 uzq 5zqjdbmsftjtubodfpgefwjdfjojojujbm votpmefsfe
tubuf 3 1max .byjnvnsftjtubodfpgefwjdfbu?$nfbtvsfepofipvsbgufsusjqqjohpssfnpx tpmefsjohpg?$gpstfd caution: 0qfsbujpocfzpoeuiftqfdjmfesbujohnbzsftvmujoebnbhfboeqpttjcmfbsdjohboenbnf 1 4pnfpmefssfgfsfodftupuiftfefwjdftnbzjodmvefi Cc ijouif1bsu/vncfs5ifiCc itipvmecfpnjuufexifoqmbdjohofxpsefstgpsuifefwjdf
40 revised: june 3, 2012 poly-fuse ? resettable ptcs ? 2012 littelfuse, inc. surface mount > 1812l series 1812l series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/1812l.html for current information. ambient operation temperature ?$ ?$ ?$ ?$ ?$ ?$ ?$ ?$ ?$ part number hold current (a) 1812l010 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.03 1 812l010/60 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 1.00 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 1.00 0.95 0.90 0.75 0.53 1812l125/16 2.00 1.75 1.52 1.25 1.00 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 1.00 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 1.67 1.50 1.45 1.29 1812l200/12 2.82 2.60 2.36 2.00 1.74 1.44 1.40 1.20 1.00 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 1812l300 4.13 3.75 3.30 3.00 2.61 2.43 2.25 2.00 1.78 temperature rerating temperature rerating curve -40 -30 -20 -10 0 10 20 30 40 5 06070808 5 10% 30% 50% 70% 90% 110 % 130% 1 50% 170% temperature (c) percentage of rated current environmental speci?cations operating/storage temp. ?$up?$ max. device surface temp. in tripped state ?$ passive aging ?$ ipvst uzqjdbmsftjtubodfdibohf humidity aging ?$ 3) ipvst uzqjdbmsftjtubodfdibohf thermal shock .*-o45%o .fuipe( ?$?$ujnft uzqjdbmsftjtubodfdibohf solvent resistance .*-o45%o .fuipe /pdibohf vibration .*-o45%o$ .fuipe $poejujpo" /pdibohf moisture level sesitivity -fwfm +o45%o$ physical speci?cations terminal material 4pmefs1mbufe$pqqfs 4pmefs.bufsjbm .buuf5jo 4o

lead solderability .ffut&*"4qfdjmdbujpo34& "/4* +45%$bufhpsz
41 revised: june 3, 2012 poly-fuse ? resettable ptcs ? 2012 littelfuse, inc 1812l series surface mount > 1812l series 1812l series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/1812l.html for current information. average time current curves 5ifbwfsbhfujnfdvssfoudvswftboe5fnqfsbuvsf3fsbujohdvswfqfsgpsnbodfjtbggfdufe czbovncfspswbsjbcmft boeuiftfdvswftqspwjefebthvjebodfpomz$vtupnfsnvtu wfsjgzuifqfsgpsnbodfjouifjsbqqmjdbujpo soldering parameters condition 3fnpx peak temp/ duration time ?$4fd time above liquids (tal) 220c 60 sec ~ 100 sec preheat 120c~ 180c 50 sec ~ 150 sec storage condition ?$_?$ < = 3) t3fdpnnfoefesfnpxnfuipet*3 wbqpsqibtfpwfo ipubjs pwfo / 2 fowjsponfougpsmfbeogsff t3fdpnnfoefenbyjnvnqbtufuijdlofttjtnn jodi
t%fwjdftdbocfdmfbofevtjohtuboebsejoevtusznfuipetboe solvents. note: *gsfnpxufnqfsbuvsftfydffeuifsfdpnnfoefeqspmmf efwjdftnbzopunffuuifqfsgpsnbodfsfrvjsfnfout preheating 120 180 220 260 0 60 to 100 temperature (c) soldering cooling 120 50 to 150 time(s) 1812l 0.01 0.1 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 3.00a 1812l 0.01 0.1 1 10 100 0.1 1 10 100 current in amperes time in seconds 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
42 revised: june 3, 2012 poly-fuse ? resettable ptcs ? 2012 littelfuse, inc. surface mount > 1812l series 1812l series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/1812l.html for current information. part number a bcde 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 1 812l010/60 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 0.8 1.20 0.01 0.05 0.3 1.2 0.006 0.03 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 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 view pad layout side view bot tom v iew 3.15 mm (.124) 3.45 mm (.135) 1.78mm (.070) d marking code varies with amperage and voltage rating (see electrical characteristics table) shown are: - 1.1a/6v rating (left) - 1.1a/33v rating (right) e a b 110 110 110 -33
43 revised: june 3, 2012 poly-fuse ? resettable ptcs ? 2012 littelfuse, inc 1812l series surface mount > 1812l series 1812l series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/1812l.html for current information. packaging part ordering number system packaging style device size code (0.18 x 0.12 inch) l: littelfuse surface mount pptc i hold hold current code (refer to electrical characteristics table) special voltage rating item (not applicable to all parts. refer to electrical characteristics table for additional information) quantity code: m=1000 d=1500 p or z =2000 r: tape & reel series 1812 l xxx /xx th y r low profile device indicator (required, for l200 and l260 device orders only. refer to c in dimensions section.) part number ordering number halogen free i hold (a) i hold code voltage option packaging option quantity quantity & packaging code 1812l010 -%3 yes 0.10 010 5bqfboe3ffm 1500 %3 1812l010/60 -%3 yes 0.10 010 /60 1500 %3 1812l014 -%3 yes 0.14 014 1500 %3 1812l020 -13 yes 0.20 020 2000 13 1812l020/60 -%3 yes 0.20 020 /60 1500 %3 1812l035/30 -%3 yes 0.35 035 /30 1500 %3 1812L050 -13 yes 0.50 050 2000 13 1812L050/30 -13 yes 0.50 050 /30 2000 13 1812l075 -13 yes 0.75 075 2000 13 1812l75/24 -%3 yes 0.75 075 /24 1500 %3 1812l75/33 -%3 yes 0.75 075 /33 1500 %3 1812l110 -13 yes 1.10 110 2000 13 1812l110/16 -%3 yes 1.10 110 /16 1500 %3 1812l110/24 -%3 yes 1.10 1.10 /24 1500 %3 1812l110/33 -.3 yes 1.10 110 /33 1000 .3 1812l125/6 -13 yes 1.25 125 /6 2000 13 1812l125/16 -%3 yes 1.25 125 /16 1500 %3 1812l150 -;3 yes 1.50 150 2000 ;3 1812l150/12 -%3 yes 1.50 150 /12 1500 %3 1812l150/24 -.3 yes 1.50 150 /24 1000 .3 1812l160 -13 yes 1.60 160 2000 13 1812l160/12 -%3 yes 1.60 160 /12 1500 %3 1812l200th -5)13 yes 2.00 200 2000 13 1812l200/12 -%3 yes 2.00 200 /12 1500 %3 1812l260th -5)%3 yes 2.60 260 1500 %3 1 812l260/12 -.3 yes 2.60 260 /12 1000 .3 1812l300 -.3 yes 3.00 300 1000 .3
44 revised: june 3, 2012 poly-fuse ? resettable ptcs ? 2012 littelfuse, inc. surface mount > 1812l series 1812l series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/1812l.html for current information. 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 1812l260 1812l110/33 1812l150/24 1812l260/12 1812l300 w h f w e 1 d ? d 0 f ? d 1 .*/
.*/
c ? p 0 h 1 p 1 w 1 p 2 w 2 a 0 w 3 b 0 w 4 t k 0 leader min. 390 390 390 trailer min. 160 160 160 tape and reel speci?cations 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

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