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 .......................................... 5 % typical resistance change humidity aging ................................................ +85 c, 85 % r.h. 1000 hours ........................ 5 % typica l resistance change thermal shock ................................................ -40 c to +85 c, 10 times .............................. 10 % ty pical resistance change solvent resistance .......................................... mil-std-202, method 215 .............................. no change vibration .......................................................... mil-std-883c, method 2007.1, ..................... no change condition a test procedures and requirements for model mf-rx 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 v max. volts i max. amps i hold i trip initial resistance 1 hour (r 1 ) post-trip resistance max. time to trip tripped power dissipation amperes at 23 c ohms at 23 c ohms at 23 c amperes at 23 c seconds at 23 c watts at 23 c hold trip min. max. max. typ. mf-rx110 60 40 1.10 2.20 0.15 0.25 0.38 5.5 8.2 1.50 mf-rx135 60 40 1.35 2.70 0.12 0.19 0.30 6.75 9.6 1.70 mf-rx160 60 40 1.60 3.20 0.09 0.14 0.22 8.0 11.4 1.90 mf-rx185 60 40 1.85 3.70 0.08 0.12 0.19 9.25 12.6 2.10 mf-rx250 60 40 2.50 5.00 0.05 0.08 0.13 12.5 15.6 2.50 mf-rx300 60 40 3.00 6.00 0.04 0.06 0.10 15.0 19.8 2.80 mf-rx375 60 40 3.75 7.50 0.03 0.05 0.08 18.75 24.0 3.20 features radial leaded devices cured, ame retardant epoxy polymer insulating material meets ul 94v-0 requirements agency recognition: rohs compliant* mf-rx series - 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 x 110 0180t r the mf-rx series is currently available, although not recommended for new designs. the higher voltage rated mf-rx/72 series is preferred. thermal derating chart - i hold / i trip (amps) model ambient operating temperature -40 oc -20 oc 0 oc 23 oc 40 oc 50 oc 60 oc 70 oc 85 oc mf-rx110 1.71 / 3.42 1.50 / 3.00 1.31 / 2.62 1.10 / 2.20 0.89 / 1.78 0.79 / 1.58 0.69 / 1.38 0.59 / 1.18 0.44 / 0.88 mf-rx135 2.09 / 4.18 1.84 / 3.68 1.61 / 3.22 1.35 / 2.70 1.09 / 2.18 0.97 / 1.94 0.85 / 1.70 0.73 / 1.46 0.54 / 1.08 mf-rx160 2.48 / 4.96 2.18 / 4.36 1.90 / 3.80 1.60 / 3.20 1.30 / 2.60 1.15 / 2.30 1.01 / 2.02 0.86 / 1.72 0.64 / 1.28 mf-rx185 2.87 / 5.74 2.52 / 5.04 2.20 / 4.40 1.85 / 3.70 1.50 / 3.00 1.33 / 2.66 1.17 / 2.34 1.00 / 2.00 0.74 / 1.48 mf-rx250 3.88 / 7.76 3.40 / 6.80 2.98 / 5.96 2.50 / 5.00 2.03 / 4.06 1.80 / 3.60 1.58 / 3.16 1.35 / 2.70 1.00 / 2.00 mf-rx300 4.65 / 9.30 4.08 / 8.16 3.57 / 7.14 3.00 / 6.00 2.43 / 4.86 2.16 / 4.32 1.89 / 3.78 1.62 / 3.24 1.20 / 2.40 mf-rx375 5.81 / 11.6 5.10 / 10.2 4.46 / 8.92 3.75 / 7.50 3.04 / 6.08 2.70 / 5.40 2.36 / 4.72 2.03 / 4.06 1.50 / 3.00
mf-rx series - ptc resettable fuses product dimensions mf-rx series, rev. m, 05/11 additional features bulk packaging, tape and reel and ammo- pak available on most models resettable circuit protection applications almost anywhere there is a low voltage power supply, up to 60 v and a load to be protected, including: security and re alarm systems loud speakers power transformers model a b c d e physical characteristics max. max. nom. tol. ? min. max. style lead dia. material mf-rx110 13.0 18.0 5.1 0.7 7.6 3.1 1 0.81 sn/cu (0.512) (0.709) (0.201) (0.028) (0.299) (0.122) (0.032) mf-rx135 14.5 19.6 5.1 0.7 7.6 3.1 1 0.81 sn/cu (0.571) (0.772) (0.201) (0.028) (0.299) (0.122) (0.032) mf-rx160 16.3 21.3 5.1 0.7 7.6 3.1 1 0.81 sn/cu (0.642) (0.839) (0.201) (0.028) (0.299) (0.122) (0.032) mf-rx185 17.8 22.9 5.1 0.7 7.6 3.1 1 0.81 sn/cu (0.701) (0.902) (0.201) (0.028) (0.299) (0.122) (0.032) mf-rx250 21.3 26.4 10.2 0.7 7.6 3.1 1 0.81 sn/cu (0.839) (1.039) (0.402) (0.028) (0.299) (0.122) (0.032) mf-rx300 24.9 30.0 10.2 0.7 7.6 3.1 1 0.81 sn/cu (0.980) (1.181) (0.402) (0.028) (0.299) (0.122) (0.032) mf-rx375 28.4 33.5 10.2 0.7 7.6 3.1 1 0.81 sn/cu (1.118) (1.319) (0.402) (0.028) (0.299) (0.122) (0.032) packaging options: bulk: all models = 500 pcs. per bag. tape & reel: mf-rx110 ? mf-rx160 = 1500 pcs. per reel; mf-rx185 ? mf-rx375 = 1000 pcs. per reel ammo-pack: mf-rx110 ? mf-rx160 = 1000 pcs. per reel; mf-rx185 ? mf-rx375 = 500 pcs. per reel 0.81 (20awg) a e b d c note: kinked lead option is available for board standoff. contact factory for details. typical part marking represents total content. layout may vary. rx110 0180t manufacturer's trademark part identification lot no. (t = taiwan s = china) date code (first digit = last digit of year; next three digits = day of year) how to order mf - rx 110 - 0 - 99 multifuse ? product designator series rx = radial leaded component hold current, i hold 110-375 (1.10 amps - 3.75 amps) packaging options - __ = bulk packaging without part number suf? x option - 0-99 = bulk packaging with part number suf? x option - 2 = tape and reel without part number suf? x option* - 2-99 = tape and reel with part number suf? x option - ap = ammo-pak* - 0-14 = kinked leads where straight leads are standard - 0-17 = straight leads where kinked leads are standard part number suf? x option - 99 = as of date code april 1, 2005 all mf-rx models are rohs compliant. the suf? x ?-99? can be used if a new part number is required to reference the rohs compliance. examples: mf-rx110 ...............bulk packaging MF-RX110-0-99 ......bulk packaging with part number suf? x option mf-rx110-2 ............tape and reel packaging mf-rx110-2-99 ......tape and reel packaging with part number suf? x option *packaged per eia486-b typical time to trip at 23 ?c 0.01 0.001 1 10 100 0.1 1 10 100 1000 fault current (amps) time to trip (seconds) mf-rx110 mf-rx135 mf-rx160 mf-rx185 mf-rx250 mf-rx300 mf-rx375 speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-rx series - ptc resettable fuses
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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