features radial leaded devices fast tripping resettable ptcs binned and sorted narrow resistance ranges available rohs compliant* agency recognition: applications customer premise equipment (cpe) central of ce / telecom centers (co) access equipment mf-rx/250 series - telecom ptc resettable fuses *rohs directive 2002/95/ec jan 27, 2003 including annex. speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. *rohs compliant rx012 24001k environmental characteristics operating/storage temperature ........................... -40 c to +85 c maximum device surface temperature in tripped state ................................................ 125 c passive aging ....................................................... +85 c, 1000 hours .............................................. 15 % typical resistance change .......................................................................... +60c, 1000 hours ................................................ 15 % typical resistance change humidity aging ..................................................... +85 c, 85 % r.h. 500 hours ............................... 15 % typical resistance change thermal shock ..................................................... mil-std-202f, method 107g, ............................. 10 % typical resistance change .......................................................................... +125 c to -55 c,10 times ........................ .......... 15 % typical resistance change solvent resistance ............................................... mil-std-202, method 215b ................................ no c hange lead solerability ................................................... ansi/j-std-002 ........................................... ........ >95 % coverage flammability ......................................................... iec 695-2-2 ............................................. ............. no flame for 60 secs. vibration ............................................................... mil-std-883c, method 2007.1, condition a ...... 5 % ty pical resistance change test procedures and requirements for model mf-rx/250 series test test conditions accept/reject criteria visual/mech. .................................................... verify dimensions and materials ...................... per mf p hysical description resistance ....................................................... in still air @ 23 c ........................................ ..... rmin r rmax time to trip ...................................................... 5 times ihold, vmax, 23 c .............................. t max. time to trip (seconds) hold current .................................................... 30 min. at ihold ............................................. ... no trip trip cycle life .................................................. vmax, imax, 100 cycles ................................... no arcing or burning trip endurance ................................................ vmax, 48 hours ................................................ n o arcing or burning ul file number ............................................... e 174545s csa file number ............................................. ca 110338 tv file number ............................................. r2057213 electrical characteristics model max. operating voltage (vdc) max. interrupt ratings hold current initial resistance one hour post-trip resistance volts (vrms) amps (a) amps at 23 c ohms at 23 c ohms at 23 c ohms at 23 c max. max. i h min. max. max. mf-rx012/250 60 250 3.0 0.12 4.0 8.0 16.0 mf-rx012/250-a 60 250 3.0 0.12 7.0 9.0 16.0 mf-rx012/250-c 60 250 3.0 0.12 5.5 7.5 14.0 mf-rx012/250-f 60 250 3.0 0.12 6.0 10.5 16.0 mf-rx012/250-1 60 250 3.0 0.12 6.0 9.0 16.0 mf-rx012/250-2 60 250 3.0 0.12 8.0 10.5 16.0 mf-rx012/250-t 60 250 3.0 0.12 7.0 12.0 16.0 mf-rx012/250u 60 250 3.0 0.12 6.0 10.0 16.0 mf-rx014/250 60 250 3.0 0.145 3.0 6.0 14.0 mf-rx014/250-a 60 250 3.0 0.145 3.0 5.5 12.0 mf-rx014/250-b 60 250 3.0 0.145 4.5 6.0 14.0 mf-rx014/250-t 60 250 3.0 0.145 5.4 7.5 14.0 mf-rx014/250u 60 250 3.0 0.145 3.5 6.5 12.0 mf-rx018/250 60 250 10.0 0.18 0.8 2.0 4.0 mf-rx018/250u 60 250 10.0 0.18 0.8 2.0 4.0 ?u? suf? x indicates product without insulation coating.
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-rx/250 series - telecom ptc resettable fuses additional features ability to withstand ac power cross conditions assists equipment with meeting itu-t k.20/k.21/k.45 assists equipment with meeting telcordia gr-1089-c intrabuilding product dimensions a b c d e physical characteristics model max. max. nom. min. max. lead dia. style material mf-rx012/250 6.5 11.0 5.1 0.7 4.7 4.6 0.65 1 sn/cu (0.256) (0.433) (0.201 0.028) (0.185) (0.181) (0.026) mf-rx012/250u 6.0 10.0 5.1 0.7 4.7 3.8 0.65 2 sn/cu (0.236) (0.394) (0.201 0.028) (0.185) (0.150) (0.026) mf-rx014/250 6.5 11.0 5.1 0.7 4.7 4.6 0.65 1 sn/cu (0.256) (0.433) (0.201 0.028) (0.185) (0.181) (0.026) mf-rx014/250u 6.0 10.0 5.1 0.7 4.7 3.8 0.65 2 sn/cu (0.236) (0.394) (0.201 0.028) (0.185) (0.150) (0.026) mf-rx018/250 11.0 13.6 5.1 0.7 4.7 4.6 0.65 1 sn/cu (0.433) (0.535) (0.201 0.028) (0.185) (0.181) (0.026) mf-rx018/250u 10.4 12.6 5.1 0.7 4.7 3.8 0.65 2 sn/cu (0.409) (0.496) (0.201 0.028) (0.185) (0.150) (0.026) packaging options: bulk: 500 pcs. per bag. tape & reel: 1500 pcs. per reel (available binned). dimensions: mm (inches) typical part marking represents total content. layout may vary. thermal derating chart - i hold (amps) model ambient operating temperature -40 oc -20 oc 0 oc 23 oc 40 oc 50 oc 60 oc 70 oc 85 oc mf-rx012/250 0.186 0.165 0.143 0.120 0.099 0.088 0.077 0.066 0.050 mf-rx014/250 0.225 0.199 0.172 0.145 0.119 0.106 0.093 0.080 0.060 mf-rx018/250 0.269 0.240 0.211 0.180 0.153 0.138 0.123 0.109 0.087 i trip is approximately two times i hold . c d b e a d b e a c style 1 style 2 rx012 24001k manufacturer's trademark note: uncoated parts have no part marking. marking is on label only. part identification date code (first digit = last digit of year; second digit = month, as follows: 1-9 = jan-sept x,y,z = oct-dec) batch/location (3 digits = batch code; k = korea s = china)
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-rx/250 series - telecom ptc resettable fuses how to order mf - rx 012/250 u - a 5 - 2 multifuse ? product designator series rx = radial leaded component hold current, i hold 008-018 (0.08-0.18 amps) max. interrupt voltage, v 250 (250 volts) telecom options u = uncoated (radial parts only) resistance sorted narrow resistance ranges - see resistance options chart resistance bins of 0.5 ohms 05 = 0.5 ohm binned parts (epoxy coated) 5 = 0.5 ohm binned parts (uncoated) packaging options - 0 = bulk packaging - 2 = tape and reel* (available with binned option) *packaged per eia486-b typical time to trip at 23 ?c mf-rx/250, rev. j, 05/11 resistance options model initial resistance values r1max bin ohms @ 23 ?c ohms @ 23 ?c min. max. max. mf-rx012/250 4.0 8.0 16.0 0.5 mf-rx012/250-a05 7.0 9.0 16.0 0.5 mf-rx012/250-c05 5.5 7.5 14.0 0.5 mf-rx012/250-f05 6.0 10.5 16.0 0.5 mf-rx012/250-105 6.0 9.0 16.0 0.5 mf-rx012/250-205 8.0 10.5 16.0 0.5 mf-rx012/250-t05 7.0 12.0 16.0 0.5 mf-rx012/250u 6.0 10.0 16.0 0.5 mf-rx014/250 3.0 6.0 14.0 0.5 mf-rx014/250-a05 3.0 5.5 12.0 0.5 mf-rx014/250-b05 4.5 6.0 14.0 0.5 mf-rx014/250u 3.5 6.5 12.0 0.5 1000 100 10 1 0.10 0.01 0 fault current (amps) time to trip (seconds) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 mf-rx018/250, mf-rx018/250u mf-rx012/250 & mf-rx012/250u mf-rx014/250 & mf-rx014/250u
iec eia dimensions dimension description mark mark dimensions tolerance carrier tape width w w 18 -0.5/+1.0 (.709) (-0.02/+.039) hold down tape width w 4 11 min. w 0 (.433) hold down tape no protrusion top distance between tape edges w 2 w 6 3 max. (.118) sprocket hole position w 1 w 5 9 -0.5/+0.75 (.354) (-0.02/+0.03) sprocket hole diameter d 0 d 0 4 ?.2 (.157) (?0078) abscissa to plane (straight lead) h h 18.5 ?.0 (.728) (?118) abscissa to plane (kinked lead) h 0 h 0 16 ?.5 (.63) (?02) abscissa to top (straight lead) h 1 h 1 38.0 max. (1.496) abscissa to top (kinked lead) h 1 h 1 32.2 max. (1.268) overall width w/lead protrusion (straight lead) c 1 55.0 max. (2.165) overall width w/lead protrusion (kinked lead) c 1 43.2 max. (1.7) overall width w/o lead protrusion (straight lead) c 2 54.0 max. (2.126) overall width w/o lead protrusion (kinked lead) c 2 42.5 max. (1.673) lead protrusion i 1 l 1 1.0 max. (.039) protrusion of cutout l l 11 max. (.433) protrusion beyond hold-down tape i 2 i 2 not speci ed sprocket hole pitch p 0 p 0 12.7 ?.3 (0.5) (?012) pitch tolerance 20 consecutive ? (?039) device pitch: mf-r005?f-r160, mf-r/90, mf-rx110/72?f-rx185/72 12.7 ?.3 (0.5) (?012) device pitch: mf-r185?f-r400, mf-rx110?f-rx375 mf-r/600, mf-rx250/72?f-rx375/72 25.4 ?.6 (1.0) (?024) tape thickness t t 0.9 max. (.035) tape thickness with splice: mf-r010?f-r160, t 1 max. mf-rx110/72?f-rx185/72 1.5 (.059) tape thickness with splice: mf-r250?f-r1100, t 1 max. mf-rx110?f-rx375, mf-r/90, mf-rx250/72-mf-rx375/72 2.3 (.091) splice sprocket hole alignment 0 ?.3 (?012) body lateral deviation h h 0 ?.0 (?039) body tape plane deviation p p 0 ?.3 (?051) mf-r, mf-r/90, mf-r/600, mf-rx, mf-rx/72 & mf-rx/250 series tape and reel speci cations speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. devices taped using eia468?/iec286-2 standards. see table below and figures 1 and 2 for details. dimensions: mm (inches)
h w h f d reel upper side tape lower side user direction of feed t user direction of feed cross section a - b p p h h 1 reference plane w 0 h 0 w 1 w a b f d 0 p 0 i 1 i 2 l h 1 p 1 h h iec eia dimensions dimension description mark mark dimensions tolerance lead spacing: mf-r, mf-r/90, mf-r/600, mf-rx, mf-rx/72 f f 5.08 ?.2 (0.2) (?.008) lead spacing: mf-rx/250 f f 5.08 -0.5/+0.6 (0.2) (-.020/+.024) reel width w w 2 56.0 max. (2.205) reel diameter d a 370.0 max. (14.57) space between anges less device 4.75 ?.25 w 1 h (.187) (?128) arbor hole diameter f c 26.0 ?2.0 (1.024) (?472) core diameter: mf-r, mf-rx, mf-r/90 h n 80 max. (3.15) core diameter: mf-rx/250, mf-r/600 h n 91 max. (3.58) box: mf-r, mf-rx, mf-r/90 56 372 372 max. (2.2) (14.6) (14.6) box: mf-rx/250 67 372 362 max. (2.64) (14.6) (14.25) box: mf-r/600 64 372 362 max. (2.52) (14.6) (14.25) consecutive missing places: mf-r, mf-rx, mf-r/90 3 max. consecutive missing places: mf-rx/250, mf-r/600 none empty places per reel: mf-r, mf-rx, mf-r/90 not speci ed empty places per reel: mf-rx/250, mf-r/600 0.1 % speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications. taped component dimensions - figure 1 dimensions: mm (inches) mf-r, mf-r/90, mf-r/600, mf-rx, mf-rx/72 & mf-rx/250 series tape and reel speci cations reel dimensions - figure 2
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