surface mount resettable ptcs revision september 12, 2013 1 / 4 @ socay electronics co., ltd. 2013 specifications are subject to change without notice. please refer to www.socay.com for current information. scf0805 series socay electronics co., ltd. www.socay.com the scf0805 series ptc provides surface mount over-current protection for applications where space is at a premium and resettable protection is desired. u rohs compliant, lead-free and halogen-free u fast time-to-trip u compact design saves board space u low resistance u low-profile u pc motherboard - plug and play protection u mobile phones - battery and port protection u game console port protection u usb peripherals u disk drive u pdas / digital cameras u power ports u general electronics hold current trip current rated voltage max current typical power maximum time to trip resistance part number i hold (a) i trip (a) v max (vdc) i max (a) p dtyp. (w) current (a) time (sec.) r min ( ) r 1max ( ) scf010-0805-r 0.10 0.30 15 100 0.5 0.50 1.50 0.700 6.000 scf020-0805-r 0.20 0.50 9 100 0.5 8.00 0.02 0.400 3.500 scf035-0805-r 0.35 0.75 6 100 0.5 8.00 0.10 0.250 1.200 scf050-0805r 0.50 1.00 6 100 0.5 8.00 0.10 0.150 0.850 scf050-9-0805r 0.50 1.00 9 100 0.5 8.00 0.10 0.150 0.850 scf075-0805r 0.75 1.50 6 40 0.6 8.00 0.20 0.090 0.350 SCF100-0805R 1.00 1.95 6 40 0.6 8.00 0.30 0.060 0.210 i hold = hold current: maximum current device will pass without tripping in 23 c still air. i trip = trip current: minimum current at which the device will trip in 23 c 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 dtyp. = power dissipated from device when in the tripped state at 23 c still air. r min = minimum resistance of device in initial (un-soldered) state. r 1max = maximum resistance of device at 23 c measured one hour after tripping. caution: operation beyond the speci ? ed rating may result in damage and possible arcing and flame. electrical param eters applicable description features
surface mount resettable ptcs revision september 12, 2013 2 / 4 @ socay electronics co., ltd. 2013 specifications are subject to change without notice. please refer to www.socay.com for current information. scf0805 series socay electronics co., ltd. www.socay.com profile feature pb-free assembly average ramp-up rate (t s max to t p ) 3 c/second max. preheat : temperature min (t s min) temperature max (t s max) time ( t s min to t s max) 150 c 200 c 60 - 180 seconds time maintained above: temperature(t l ) time (t l ) 217 c 60-150 seconds peak/classification temperature(t p ): 260 c time within 5 c of actual peak: temperature 20-40 seconds ramp-down rate: 6 c/ second max. time 25 c to peak temperature 8 minutes max. note: all temperatures refer to of the package, measured on the package body surface. solder reflow due to lead free nature, temperature and dwelling time for the soldering zone is higher than those for regular. this may cause damage to other components. 1. recommended max past thickness > 0.25mm. 2. devices can be cleaned using standard methods and aqueous solvent. 3. rework use standard industry practices. 4. storage environment : < 30/ 60%rh caution: 1. if reflow temperatures exceed the recommended profile, devices may not meet the performance requirements. 2. devices are not designed to be wave soldered to the bottom side of the board. a= scf010-0805-r b= scf020-0805-r c= scf035-0805-r d= scf050-0805r/ scf050-9-0805r e= scf075-0805r f= SCF100-0805R terminal pad material pure tin soldering characteristics meets eia specification rs 186-9e, ansi/j-std-002 category 3 temperature rerating chart C i hold (a) soldering parameters temperature rerating curve average time current curves material specifications ramp-down preheat critical zone t l to t p time to peak temperature (t 25 to peak) t p t l t s(max) t s(min) 25 temperature ramp-up time ambient temperature ( c) fault current (a)
surface mount resettable ptcs revision september 12, 2013 3 / 4 @ socay electronics co., ltd. 2013 specifications are subject to change without notice. please refer to www.socay.com for current information. scf0805 series socay electronics co., ltd. www.socay.com a b c device nominal nominal nominal 0805 series 1.20 1.00 1.50 the dimension in the table below provide the recommended pad layout for each scf0805 device a b c d e part number min. max. min. max. min. max. min. max. min. max. scf010-0805-r 2.00 2.30 1.20 1.50 0.30 1.00 0.20 0.60 0.10 0.45 scf020-0805-r 2.00 2.30 1.20 1.50 0.30 1.00 0.20 0.60 0.10 0.45 scf035-0805-r 2.00 2.30 1.20 1.50 0.25 0.75 0.20 0.60 0.10 0.45 scf050-0805r 2.00 2.30 1.20 1.50 0.55 1.25 0.20 0.60 0.10 0.45 scf050-9-0805r 2.00 2.30 1.20 1.50 0.55 1.25 0.20 0.60 0.10 0.45 scf075-0805r 2.00 2.30 1.20 1.50 0.55 1.25 0.20 0.60 0.10 0.45 SCF100-0805R 2.00 2.30 1.20 1.50 0.75 1.80 0.20 0.60 0.10 0.45 dimensions unit: mm part numbering part marking pad layouts unit: mm scf xxx C xx C 0805 C r device size code voltage rating current rating socay product code f x part identification logo f1 example f1= scf010-0805-r f2= scf020-0805-r f3= scf035-0805-r f5= scf050-0805r fa= scf050-9-0805r f7= scf075-0805r f0= sc f100 - 0805r
surface mount resettable ptcs revision september 12, 2013 4 / 4 @ socay electronics co., ltd. 2013 specifications are subject to change without notice. please refer to www.socay.com for current information. scf0805 series socay electronics co., ltd. www.socay.com part number packaging option quantity scf010-0805-r tape & reel -8mm/7 tape 4000 scf020-0805-r tape & reel -8mm/7 tape 4000 scf035-0805-r tape & reel -8mm/7 tape 4000 scf050-0805r tape & reel -8mm/7 tape 3000 scf050-9-0805r tape & reel -8mm/7 tape 3000 scf075-0805r tape & reel -8mm/7 tape 3000 SCF100-0805R tape & reel -8mm/7 tape 3000 u operation beyond the specified maximum ratings or improper use may result in damage and possible electrical arcing and/or flame. u pptc device are intended for occasional over-current protection. application for repeated over-current condition and/or prolonged trip are not anticipated. u avoid contact of pptc device with chemical solvent. prolonged contact will damage the device performance. packaging warning tape and reel s pecificat ions direction of feed 0.33 (8.4) 0.512(13.0) arbor hole diameter 7.0 (177.8) 0. 212 (5.4) 0. 157 (4.0) 0.059 (1.5) diameter cover tape 0. 314 (8.0) 0. 157 (4.0) dimensions are in inches (and millimeters)
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