radial lead resettable polymer 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. sc6 series socay electronics co., ltd. www.socay.com sc6 series radial leaded ptcs are designed to provide resettable over-current protection for usb, low voltage electrical equipment applications. with maximum 6 volts and maximum 40-ampere short circuit rating. u rohs compliant, lead-free and halogen-free u 40a short circuit rating u 6v operating voltage u fast time-to-trip u meets all usb protection requirements u computers and peripherals u usb hubs ,ports and peripherals u power ports u general electronics 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 (m ) r max (m ) r 1max (m ) SC6-050 0.50 1.0 6 40 0.45 2.50 3.8 200 450 675 sc6-065 0.65 1.3 6 40 0.50 3.25 4.5 120 270 400 sc6-075 0.75 1.5 6 40 0.55 3.75 5.2 110 230 345 sc6-090 0.90 1.8 6 40 0.60 4.50 5.9 90 180 270 sc6-110 1.10 2.2 6 40 0.70 5.50 6.6 70 140 210 sc6-120 1.20 2.4 6 40 0.75 6.00 7.0 70 140 210 sc6-135 1.35 2.7 6 40 0.80 6.75 7.3 55 110 150 sc6-160 1.60 3.2 6 40 0.90 8.00 8.0 45 90 115 sc6-185 1.85 3.7 6 40 1.00 9.25 8.7 40 80 100 sc6-250 2.50 5.0 6 40 1.20 12.5 10.3 27 55 70 i hold = hold current: maximum current device will pass without tripping in 25 c still air. i trip = trip current: minimum current at which the device will trip in 25 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 25 c still air. r min = minimum resistance of device in initial (un-soldered) state. r max = maximum resistance of device in initial (un-soldered) state. r 1max = maximum resistance of device at 25 c measured one hour after tripping. caution: operation beyond the speci ? ed rating may result in damage and possible arcing and flame. electrical parameters description features applicable
radial lead resettable polymer 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. sc6 series socay electronics co., ltd. www.socay.com ambient operation temperature -40 c -20 c 0 c 25 c 40 c 50 c 60 c 70 c 85 c part number hold current (a) SC6-050 0.73 0.65 0.58 0.50 0.42 0.39 0.34 0.31 0.26 sc6-065 0.94 0.85 0.75 0.65 0.54 0.50 0.44 0.40 0.34 sc6-075 1.09 0.98 0.86 0.75 0.62 0.58 0.51 0.46 0.39 sc6-090 1.31 1.17 1.04 0.90 0.75 0.69 0.61 0.55 0.47 sc6-110 1.60 1.43 1.27 1.10 0.91 0.85 0.75 0.67 0.57 sc6-120 1.74 1.56 1.38 1.20 1.00 0.92 0.82 0.73 0.62 sc6-135 1.96 1.76 1.55 1.35 1.12 1.04 0.92 0.82 0.70 sc6-160 2.32 2.08 1.84 1.60 1.33 1.23 1.09 0.98 0.83 sc6-185 2.68 2.41 2.13 1.85 1.54 1.42 1.26 1.13 0.96 sc6-250 3.63 3.25 2.88 2.50 2.08 1.93 1.70 1.53 1.30 a=sc6-075 b=sc6-090 c=sc6-110 d=sc6-120 e=sc6-135 f=sc6-160 g=sc6-185 h=sc6-250 temperature rerating chart C i hold (a) temperature rerating curve average time current curves time in seconds current in amperes percentage of rated current temperature ( c)
radial lead resettable polymer 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. sc6 series socay electronics co., ltd. www.socay.com test test conditions accept/reject criteria resistance in still air @25 2 c r min r r max hold current 60 min, at i hold , in still air @25 2 c no trip time to trip specified current, v max , @25 2 c t maximum time to trip trip cycle life v max , i max ,100 cycles no arcing or burning trip endurance vmax,24hours no arcing or burning pre-heating zone refer to the condition recommended by the manufacturer. max. ramping rate should not exceed 4 c/sec soldering zone max. solder temperature should not exceed 260 c cooling zone cooling by natural convection in air lead material tin-plated copper clad steel soldering characteristics solder ability per mil-std-202, method 208e insulating material cured, ? ame retardant epoxy polymer meets ul 94v-0 requirements. device labeling marked with sc , voltage, current rating part numbering part marking soldering parameters t est procedures and requirement physical specifications
radial lead resettable polymer 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. sc6 series socay electronics co., ltd. www.socay.com figure1 figure2 a b c d lead (dia) inches mm inches mm inches mm inches mm part number figure max. max. max. max. typ. typ. max. max. inches mm packaging (bulk pack) SC6-050 figure1 0.236 6.0 0.445 11.3 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-065 figure1 0.236 6.0 0.472 12.0 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-075 figure1 0.276 7.0 0.472 12.0 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-090 figure2 0.256 6.5 0.453 11.5 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-110 figure2 0.276 7.0 0.472 12.0 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-120 figure1 0.283 7.2 0.480 12.2 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-135 figure2 0.256 6.5 0,591 14.5 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-160 figure2 0.346 8.8 0.543 13.8 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-185 figure2 0.346 8.8 0.610 15.5 0.200 5.1 0.118 3.0 0.020 0.5 1000 sc6-250 figure2 0.394 10.0 0.630 16.0 0.200 5.1 0.118 3.0 0.020 0.5 1000 u this product should not be used in an application where the maximum interrupt voltage or maximum interrupt current in a fault condition, operation beyond the maximum rating or improper use may result in device damage and possible electrical arcing and flame. u a pptc device is not a fuse, it is a nonlinear thermistor that limits current, because under a fault condition all pptc devices go into a high resistance state but not open circuit hazardous voltage may be present at pptc. u the devices are intended for protection against occasional over-current or over-temperature fault conditions and should not be used when repeated fault conditions or prolonged trip events. u in most application, power must be removed and the fault condition cleared in order to reset a pptc device. u pptc devices are not recommended to be installed in applications where the device is constrained such that its pptc properties are inhibited, for example in rigid potting materials or add devices surface coating, bundled devices ontology, which lack adequate clearance to accommodate device expansion. u contamination on of the pptc material with certain silicone-based oils or some aggressive solvents can adversely impact the performance of the devices. for example, organic solvents to cleaning. dimensions warning
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