9 revised: november 11, 2011 lo rho surface mount series the littelfuse lo rho surface mount pptc (polymer positive temperature coeffcient) series offers ultra low normal operating resistance while maintains the same performance of existing littelfuse pptc products. available in 8 hold current ratings, all devices are tuv and ul certifed and possess a maximum fault current rating of 40a. description features applications ? lo rho (low resistance at normal operating hold current) ? rohs compliant, lead free and halogen free ? fast response to fault currents ? compact design sav es board space ? thin-profle <0.75mm ? compatible with high temperature solders ? usb peripherals ? disk drives ? cd-roms ? pdas / digital cameras ? plug and play protection for motherboards and peripherals ? game console port protection agency agency file number e183209 r50119118 agency approvals electrical characteristics part number marking i hold (a) i trip (a) v max (vdc) i max (a) p d typ. (w) maximum time-to-trip resistance agency approvals current (a) time (sec.) r min () r 1max () 0805l075slyr -g 0.75 1.50 6 50 0.6 8.00 0.20 0.040 0.160 x x 0805L110SLYR -h 1. 10 1.80 6 50 0.6 8.00 0.30 0.030 0.130 x x 0805l150slyr -k 1.50 3.00 6 50 0.6 8.00 0.50 0.015 0.065 x x 1206l110slyr -h 1. 10 2.20 6 50 0.8 8.00 0.30 0.015 0.100 x x 1206l150slyr -k 1.50 3.00 6 50 0.8 8.00 0.30 0.010 0.065 x x 1206l300slwr -n 3.00 6.00 6 50 0.8 8.00 4.00 0.003 0.020 x x 1206l350slwr -t 3.50 7. 0 0 6 50 0.8 8.00 5.00 0.003 0.018 x x 1206l380slwr x 3.80 8.00 6 50 0.8 8.00 5.00 0.002 0.016 x x 1210l200slyr -l 2.00 4.00 6 50 0.8 8.00 3.00 0.005 0.024 x x 1210l350slwr -t 3.50 7. 0 0 6 50 0.8 17.50 2.00 0.003 0.018 x x 1210l380slyr x 3.80 8.00 6 50 1. 0 8.00 5.00 0.002 0.016 x x 1812l190slpr lf 19 1.90 4.90 6 50 1. 0 9.50 4.50 0.003 0.025 x x 1812l350slpr* lf-35 3.50 8.10 6 50 1. 0 17.50* 2.00* 0.003 0.025** 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 1max = maximum resistance of de vice 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. note: *1812l350 typical time-to-trip is 50a at 0.013-0.020 seconds and meets the 8a at 5 seconds maximum time-to-trip requirement. **1812l350 r1min=0.015ohm (resistance range 0.015-0.025ohm). poly-fuse ? resettable ptcs ? 2011 littelfuse, inc specifcations are subject to change without notice. please refer to www.littelfuse.com/series/lorho.html for current information. lo rho series surface mount > lo rho series lo rho series
10 revised: november 11, 2011 temperature rerating temperature rerating curve -40 -30 -20 -10 01 02 03 04 05 06 07 08 0 10% 30% 50% 70% 90% 110% 130% 150% 170% te mperature (c) percentage of rated current 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. ambient operation temperature -40c -20c 0c 20c 40c 60c 70c 85c part number hold current (a) 0805l075slyr 1.24 1.07 0.94 0.75 0.62 0.47 0.37 0.23 0805L110SLYR 1.93 1.65 1.38 1. 10 0.83 0.55 0.41 0.21 0805l150slyr 2.37 2.07 1.80 1.50 1.25 0.93 0.74 0.50 1206l110slyr 2.00 1.70 1.40 1. 10 0.83 0.56 0.44 0.24 1206l150slyr 2.67 2.32 1.95 1.50 1. 15 0.78 0.64 0.36 1206l300slwr 4.35 3.90 3.60 3.00 2.61 2.04 1. 74 1.05 1206l350slwr 5.53 4.79 4.20 3.50 2.91 2.19 1.96 1.44 1206l380slwr 6.00 5.13 4.56 3.80 3.15 2.47 1.98 1.60 1210l200slyr 3.26 2.87 2.50 2.00 1.70 1.29 1.09 0.78 1210l350slwr 5.00 4.60 4.05 3.50 2.80 2.00 1.60 1. 0 0 1210l380slyr 6.00 5.28 4.52 3.80 3.15 2.39 2.09 1.60 1812l190slpr 3.00 2.58 2.22 1.90 1.49 1. 14 0.93 0.61 1812l350slpr 5.43 4.73 4.13 3.50 2.80 2.10 1.75 1. 12 0.010 0.100 1.000 10.000 1.0 10.0 100.0 lorho series current in amperes time in seconds 0805l110sl 0805l150sl 0805l075sl 1206l110sl 1206l150sl 1210l200sl 1812l190sl 1812l350sl 1210l350sl 1206l300sl 1206l350sl 1206l380sl 1210l380sl environmental specifcations operating temperature -40c to +85c maximum device surface temperature in tripped state 125c passive aging +85c, 1000 hours -/+10% typical resistance change humidity aging +85c, 85% r.h.,100 hours -/+15% 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 sensitivity level 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. poly-fuse ? resettable ptcs ? 2011 littelfuse, inc. lo rho series specifcations are subject to change without notice. please refer to www.littelfuse.com/series/lorho.html for current information. surface mount > lo rho series
11 revised: november 11, 2011 soldering parameters profle feature pb-free assembly average ramp-up rate (t s(max) to t p ) 3c/second max pre heat: temperature min (t s(min) ) 150c temperature max (t s(max) ) 200c time (min to max) (t s ) 60 C 180 secs time maintained above: temperature (t l ) 217c temperature (t l ) 60 C 150 seconds peak / classifcation temperature (t p ) 260 +0/-5 c time within 5c of actual peak temperature (t p ) 20 C 40 seconds ramp-down rate 6c/second max time 25c to peak temperature (t p ) 8 minutes max. -- all temperature ref er to topside of the package, measured on the package body surface -- if refow temperature exceeds the recommended profle, devices may not meet the performance requirements -- recommended refow methods: ir, vapor phase oven, hot air oven, n 2 environment for lead -- recommended maximum paste thickness is 0.25mm (0.01 0 inch) -- devices can be cleaned using standard industry methods and solvents -- devices can be reworked using the standard industry practices dimensions part number device dimension solder pad layout a b c d e f g h mm mm mm mm mm mm mm mm min max min max min max min max min max 0805l075slyr 2.00 2.20 1.20 1.50 0.40 0.75 0.20 0.55 0.05 0.45 1. 0 0 1.20 1.50 0805L110SLYR 2.00 2.20 1.20 1.50 0.40 0.75 0.20 0.55 0.10 0.45 1. 0 0 1.20 1.50 0805l150slyr 2.00 2.20 1.20 1.50 0.40 0.75 0.20 0.55 0.10 0.45 1. 0 0 1.20 1.50 1206l110slyr 3.00 3.40 1.50 1.80 0.40 0.75 0.25 0.75 0.10 0.45 1. 0 0 1.80 1.80 1206l150slyr 3.00 3.40 1.50 1.80 0.40 0.70 0.25 0.75 0.10 0.45 1. 0 0 1.80 1.80 1206l300slwr 3.00 3.40 1.50 1.80 0.60 1. 0 0 0.25 0.75 0.05 0.45 1. 0 0 1.80 1.80 1206l350slwr 3.00 3.40 1.50 1.80 0.60 1. 0 0 0.25 0.75 0.05 0.45 1. 0 0 1.80 1.80 1206l380slwr 3.00 3.40 1.50 1.80 0.60 1. 0 0 0.25 0.75 0.05 0.45 1. 0 0 1.80 1.80 1210l200slyr 3.00 3.43 2.35 2.80 0.40 0.70 0.25 0.75 0.20 0.50 1. 0 0 2.00 2.50 1210l350slwr 3.00 3.43 2.35 2.80 0.60 1. 0 0 0.25 0.75 0.20 0.50 1. 0 0 2.00 2.50 1210l380slyr 3.00 3.43 2.35 2.80 0.40 0.65 0.25 0.75 0.10 0.50 1. 0 0 2.00 2.50 1812l190slpr 4.37 4.73 3.07 3.41 0.40 0.70 0.30 1.20 0.25 0.65 1.78 3.45 3.15 1812l350slpr 4.37 4.73 3.07 3.41 0.40 0.70 0.30 1.20 0.25 0.65 1.78 3.45 3.15 c to p view side view bot to m view d marking code v aries by device -- see electrical characteristics t able e a b ff solder pad layout device dimensions h g poly-fuse ? resettable ptcs ? 2011 littelfuse, inc specifcations are subject to change without notice. please refer to www.littelfuse.com/series/lorho.html for current information. lo rho series surface mount > lo rho series lo rho series
12 revised: november 11, 2011 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 specifcations tape and reel diagram tape specifications: eia-481-1 (mm) reel dimensions: eia-481-1 (mm) 0805l075sl 0805l110sl 0805l150sl 1206l110sl 1206l150sl 1206l300sl 1206l350sl 1206l380sl 1210l200sl 1210l350sl 1210l380sl 1812l190sl 1812l350sl 0805l075sl 0805l110sl 0805l150sl 1210l200sl 1210l350sl 1210l380sl 1206l110sl 1206l150sl 1206l300sl 1206l350sl 1206l380sl 1812p190sl 1812l350sl w 8.0+/- 0.10 8.15+0.15-0.30 8.0+/- 0.30 12.00+0.30-0.10 h 12.0+/- 0.05 16.0+/- 0.2 f 3.5+/- 0.05 3.50+/- 0.05 3.5+/- 0.05 5.50+/- 0.05 w 9.0+/- 0.5 13.2+/- 1.5 e 1 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 d ?60+0.5 ? 60.2+/?0.5 d 0 1.55+/- 0.05 1.55+/- 0.05 1.55+/- 0.05 1.50+0.10 f ?13.0+/- 0.2 ? 13.0+/- 0.5 d 1 1.0 (min) 1.00 (min) 1.0 (min) 1.50+0.25 c ?178+/- 1.0 ? 178+/- 1.0 p 0 4.0+/- 0.10 4.00+/- 0.10 4.0+/- 0.10 4.00+/- 0.10 h 1 11+/- 0.5 11+/- 0.5 p 1 4.0+/- 0.10 4.00+/- 0.10 4.0+/- 0.10 8.00+/- 0.10 w 1 2.2+/- 0.5 2.5+0.5 p 2 2.0+/- 0.05 2.00+/- 0.05 2.0+/- 0.05 2.00+/- 0.05 w 2 3.0+0.5 3.0+0.5 a 0 1.45+/- 0.10 1.95+/- 0.10 2.82+/- 0.10 3.58+/- 0.10 w 3 4.0+0.5 4.0+0.5 b 0 2.30+/- 0.10 3.65+/- 0.10 3.46+/- 0.10 4.93+/- 0.10 w 4 5.5+0.5 5.0+0.5 t 0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 k 0 0.74+/- 0.10 0.87+/- 0.10 1.00+/- 0.10 1.02+/- 0.10 leader min. 390 390 390 390 trailer min. 160 160 160 160 part ordering number system pa ckaging st yle size l: littelfuse surface mount pptc sl: lorho ptc series i hold hold current code quantity code r: tape & reel p: 2000 w: 3000 y: 4000 0805 l 110 sl y r series packaging part number i hold (a) i hold code packaging option uantity uantity packaging codes 0805l075slyr 0.75 075 tape & reel 4000 yr 0805L110SLYR 1. 10 110 4000 yr 0805l150slyr 1.50 150 4000 yr 1206l110slyr 1. 10 110 4000 yr 1206l150slyr 1.50 150 4000 yr 1206l300slwr 3.00 300 3000 wr 1206l350slwr 3.50 350 3000 wr 1206l380slwr 3.80 380 3000 wr 1210l200slyr 2.00 200 4000 yr 1210l350slwr 3.50 350 3000 wr 1210l380slwr 3.80 380 3000 wr 1812l190slpr 1.90 190 2000 pr 1812l350slpr 3.50 350 2000 rr poly-fuse ? resettable ptcs ? 2011 littelfuse, inc. lo rho series specifcations are subject to change without notice. please refer to www.littelfuse.com/series/lorho.html for current information. surface mount > lo rho series
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