57 ?2009 littelfuse, inc. revised: november 30, 2009 polyfuse ? resettable ptcs 250s series surface mount > 250s series 250s series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/250s.html for current information. the 250s high voltage radial device is a polymer-based ptc suitable to protect telephony equipment against lightining and power cross strikes. the 250s series is fully compatible with telecommunications standards, and is offered in horizontal and new vertical surface mount package. agency approvals agency agency file number e183209 electrical characteristics part number device mounting layout i hold (a) i trip (a) v max (v int /v op ) i max (a) p d typ. (w) time to trip at 1a resistance agency approvals typical (sec.) maximum (sec.) r min ( ) r max ( ) r 1max ( ) 250s130 horizontal 0.13 0.26 250/60 3 1.2 0.9 4.0 4 13 20 C 250s130Cra 0.13 0.26 250/60 3 1.2 1.4 4.0 6.5 10 15 C 250s130Crb 0.13 0.26 250/60 3 1.2 0.7 4.0 9 13 20 C 250s130Crc 0.13 0.26 250/60 3 1.2 1.1 4.0 7 11 17 C 250s130v vertical 0.13 0.26 250/60 3 1.2 2.0 4.0 4 13 20 C i hold = hold current: maximum current device will pass without tripping in 23c still air. i trip = trip current: minimum current at which the device will trip in 23c still air. v int = maximum voltage the device can withstand without damage at rated current (i max) v op = the device regular operation voltage 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 23c 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 20c measured one hour after tripping. caution: operation beyond the speci?ed rating may result in damage and possible arcing and ?ame. description features applications ? rohs compliant, directive 2002/95/ec ? lead-free & halogen-free ? low resistance ? compatible with telecom standards ? helps meets itu k.20, k.21/telcordia standards ? excellent solder joint inspectability ? high voltage 250s series ? customer premises equipment (cpe) ? central of?ce (co)/ telecom centers ? lan/wan equipment ? access equipment
58 revised: november 30, 2009 ?2009 littelfuse, inc. polyfuse ? resettable ptcs surface mount > 250s series 250s series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/250s.html for current information. ambient operation temperature -40c -20c 0c 23c 40c 50c 60c 70c 85c part number hold current (a) 250s130 0.21 0.19 0.17 0.13 0.11 0.10 0.09 0.07 0.05 temperature rerating temperature rerating curve 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. 200.00 160.00 120.00 80.00 40.00 0.00 -40.00 0.00 40.00 80.00 120.00 device ambient temperature oc percentage of rated current % protection application guide region/ speci?cation application device selection south america/ asia/europe itu k.45 access network equipment remote terminal repeaters wan equipment cross Cconnect 250s130 250s130v 250s130-ra 250S130-RB 250s130-rc south america/ asia/europe itu k.21 customer and it equipment analog modems adsl, xdsl phone sets, pbx systems internet appliances pos terminals 250s130 250s130v 250s130-ra 250S130-RB 250s130-rc south america/ asia/europe itu k.20 central of?ce pots/isdn linecards t1/e1/j1 linecards adsl/vdsl splitters csu/dsu 250s130 250s130v 250s130-ra 250S130-RB 250s130-rc agency speci?cation selection guide for telecom and networking applications product lightning power cross 250s130 250s130v 250s130-ra 250S130-RB 250s130-rc itu k.20/21/45 C 1.5kv 10/700s itu k.20/21/45 C 230vac, 10 2 5 0s 0.10 1 10 100 1000 0.1 1 10 100 current in amperes time in seconds 0.13a
59 ?2009 littelfuse, inc. revised: november 30, 2009 polyfuse ? resettable ptcs 250s series surface mount > 250s series 250s series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/250s.html for current information. soldering parameters pro?le 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 / classi?cation 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 refer to topside of the package, measured on the package body surface -- if re?ow temperature exceeds the recommended pro?le, devices may not meet the performance requirements -- recommended re?ow methods: ir, vapor phase oven, hot air oven, n 2 environment for lead -- recommended maximum paste thickness is 0.25mm (0.010 inch) -- devices can be cleaned using standard industry methods and solvents -- devices can be reworked using the standard industry practices environmental speci?cations operating/storage temperature -40c to +85c maximum device surface temperature in tripped state 125c -/+10oc passive aging +85c, 1000 hours humidity aging +85c, 85%,r.h.,1000 hours thermal shock milCstdC202f, method 107g +125c to -55c 10 times solvent resistance milCstdC202, method 215f moisture sensitivity level level 1, jCstdC020c physical speci?cations terminal material solder-plated copper (solder material: matte tin(sn)) lead solderability meets eia speci?cation rs186-9e, ansi/ j-std-002 category 3.
60 revised: november 30, 2009 ?2009 littelfuse, inc. polyfuse ? resettable ptcs surface mount > 250s series 250s series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/250s.html for current information. dimensions part number abcde material fg h inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. 250s130 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 sn/ni/cu 0.18 4.6 0.07 1.8 0.24 6.1 250s130Cra 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 sn/ni/cu 0.18 4.6 0.07 1.8 0.24 6.1 250s130Crb 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 sn/ni/cu 0.18 4.6 0.07 1.8 0.24 6.1 250s130Crc 0.37 9.4 0.15 3.7 0.29 7.4 0.016 0.4 0.15 3.8 sn/ni/cu 0.18 4.6 0.07 1.8 0.24 6.1 a d c e b f h g g soldering pad layout part number ordering number i hold (a) i hold code packaging option quantity quantity & packaging code 250s130 250s130dr 0.13 130 tape and reel 1500 dr 250s130v 250s130vdr 0.13 130 tape and reel 1500 dr 250s130Cra 250s130Cradr 0.13 130 tape and reel 1500 dr 250s130Crb 250s130Crbdr 0.13 130 tape and reel 1500 dr 250s130Crc 250s130Crcdr 0.13 130 tape and reel 1500 dr packaging part ordering number system 2 5 0 s 130 -ra d r packaging style surface mount i hold current code (refer to electrical characteristics t able) quantity code: d =1 5 00 r: t ape & reel (blank) = horizontal / 4-13 resistance range v = vertical / 4-13 resistance range -ra = horizontal / 6. 5 -10 resistance range -rb = horizontal / 9-13 resistance range -rc = horizontal / 7-11 resistance range peak voltage rating option code part number abcdef material gh i j inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. max. 250s130v .24 6.1 .27 6.9 .13 3.2 .04 1.0 .07 1.9 .09 2.3 sn/ni/cu .09 2.3 .09 2.4 .25 6.4 .14 3.43 c c e b d a g i h h g j soldering pad layout f
61 ?2009 littelfuse, inc. revised: november 30, 2009 polyfuse ? resettable ptcs 250s series surface mount > 250s series 250s series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/250s.html for current information. tape specifications: eia-481-1 (mm) reel dimensions: eia-481-1 (mm) w 16 +/- 0.30 h 22.4 +/- 0.05 f 7.5 +/- 0.05 w 16.4 .0 +0/+2 e 1 1.75 +/- 0.10 d ?60+0.5 d 0 1.5 +/- 0.05 f ?13.0+/- 0.2 d 1 1.00(min) c ?340+/- 1.0 p 0 4.00 +/- 0.10 h 1 11+/- 0.5 p 1 12.00 +/- 0.10 w 1 2.2+/- 0.5 p 2 2.00 +/- 0.05 w 2 3.0+0.5 a 0 6.9 +/- 0.10 w 3 4.0+0.5 b 0 9.6 +/- 0.10 w 4 5.5+0.5 t max 0.4 +/- 0.10 k 0 3.4 +/- 0.15 leader min. 300 trailer min. 300 tape and reel speci?cations tape and reel diagram 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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