features 72 v rated radial leaded devices cured, ame retardant epoxy polymer insulating material meets ul 94v-0 requirements rohs compliant* agency recognition: applications almost anywhere there is a low voltage power supply, up to 72 v and a load to be protected, including: security and re alarm systems loudspeakers power transformers mf-rx/72 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. 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 tr i p 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-rx020/72 72 40 0.20 0.40 1.50 2.84 4.40 1.0 2.2 0.40 mf-rx025/72 72 40 0.25 0.50 1.00 1.95 3.00 1.25 2.5 0.45 mf-rx030/72 72 40 0.30 0.60 0.76 1.36 2.10 1.5 3.0 0.50 mf-rx040/72 72 40 0.40 0.80 0.52 0.86 1.29 2.0 3.9 0.55 mf-rx050/72 72 40 0.50 1.00 0.41 0.77 1.17 2.5 4.0 0.75 mf-rx065/72 72 40 0.65 1.30 0.27 0.48 0.72 3.25 5.3 0.90 mf-rx075/72 72 40 0.75 1.50 0.18 0.40 0.60 3.75 6.3 0.90 mf-rx090/72 72 40 0.90 1.80 0.14 0.31 0.47 4.5 7.2 1.00 mf-rx110/72 72 40 1.10 2.20 0.15 0.25 0.38 5.5 8.2 1.50 mf-rx135/72 72 40 1.35 2.70 0.12 0.19 0.30 6.75 9.6 1.70 mf-rx160/72 72 40 1.60 3.20 0.09 0.14 0.22 8.0 11.4 1.90 mf-rx185/72 72 40 1.85 3.70 0.08 0.12 0.19 9.25 12.6 2.10 mf-rx250/72 72 40 2.50 5.00 0.05 0.08 0.13 12.5 15.6 2.50 mf-rx300/72 72 40 3.00 6.00 0.04 0.06 0.10 15.0 19.8 2.80 mf-rx375/72 72 40 3.75 7.50 0.03 0.05 0.08 18.75 24.0 3.20 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 % typical resistance change thermal shock ..................................................... +85 c to -55 c, 10 times ................................. .. 10 % typical 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/72 series test test conditions accept/reject criteria visual/mech. ......................................................... verify dimensions and materials ......................... .. per mf physical 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 ............................................ ......... no arcing or burning ul file number .................................................... e 174545 r x 1 10 4 18 0 s *rohs compliant
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-rx/72 series - ptc resettable fuses product dimensions model a b c d e physical characteristics max. max. nom. tol. min. max. style lead dia. material mf-rx020/72 7.4 (0.291) 12.7 (0.5) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 0.51 (0.020) sn/cufe mf-rx025/72 7.4 (0.291) 12.7 (0.5) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 0.51 (0.020) sn/cufe mf-rx030/72 7.4 (0.291) 13.4 (0.528) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 0.51 (0.020) sn/cufe mf-rx040/72 7.4 (0.291) 13.7 (0.539) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 0.51 (0.020) sn/cufe mf-rx050/72 7.9 (0.311 13.7 (0.539) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 1 0.51 (0.020) sn/cu mf-rx065/72 9.7 (0.382) 15.2 (0.598) 10.2 (0.402) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 0.51 (0.020) sn/cu mf-rx075/72 10.4 (0.409) 16.0 (0.630) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 0.51 (0.020) sn/cu mf-rx090/72 11.7 (0.461) 16.70 (0.657) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 1 0.51 (0.020) sn/cu mf-rx110/72 10.84 (0.427) 16.84 (0.662) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 2 0.81 (0.032) sn/cu mf-rx135/72 12.26 (0.483) 18.26 (0.718) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 2 0.81 (0.032) sn/cu mf-rx160/72 13.94 (0.549) 19.94 (0.785) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 2 0.81 (0.032) sn/cu mf-rx185/72 15.18 (0.598) 21.18 (0.833) 5.1 (0.201) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 2 0.81 (0.032) sn/cu mf-rx250/72 17.84 (0.702) 23.84 (0.938) 10.2 (0.402) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 2 0.81 (0.032) sn/cu mf-rx300/72 20.67 (0.814) 26.67 (1.050) 10.2 (0.402) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 2 0.81 (0.032) sn/cu mf-rx375/72 23.51 (0.926) 29.51 (1.161) 10.2 (0.402) 0.7 (0.028) 7.6 (0.30) 3.1 (0.122) 2 0.81 (0.032) sn/cu additional features resettable circuit protection bulk packaging, tape and reel and ammo-pak available on most models dimensions: mm (inches) packaging options: bulk: 500 pcs. per bag. tape & reel: mf-rx020/72-2 ~ mf-rx090/72-2 = 3000 pcs. per reel; mf-rx110/72-2 ~ mf-rx160/72-2 = 1500 pcs. per reel; mf-rx185/72-2 - mf-rx375/72-2 = 1000 pcs. per reel. ammo-pack: mf-rx020/72-ap ~ mf-rx090/72-ap = 2000 pcs. per pack; mf-rx110/72-ap ~ mf-rx160/72-ap = 1000 pcs. per pack; mf-rx185/72-ap - mf-rx375/72-ap = 500 pcs. per pack. how to order mf - rx 110/72 - 2 multifuse ? product designator series rx = radial leaded component hold current, ihold 020-375 (0.20 amps - 3.75 amps) maximum voltage, vmax 72 (72 volts) packaging options - 0 = bulk packaging - 2 = tape and reel* - ap = ammo-pak* *packaged per eia 486-b typical part marking represents total content. layout may vary. a e b d c style 1 a e b d c style 2 rx110 4180s manufacturer's trademark part identification lot no. (s = china) date code (first digit = last digit of year; next three digits = day of year)
mf-rx/72 series, rev. f, 04/10 typical time to trip at 23 ?c speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-rx/72 series - ptc resettable fuses 100 10 1 0.1 0.01 0.001 0.1 1 10 100 fault current (amps) time to trip (seconds) mf-rx040 mf-rx075 mf-rx020 mf-rx050 mf-rx065 mf-rx090 mf-rx025 mf-rx030 0.01 0.001 1 10 100 0.1 1 10 100 1000 fault current (amps) time to trip (seconds) mf-rx110 /72 mf-rx135 /72 mf-rx160 /72 mf-rx185 /72 mf-rx250 /72 mf-rx300 /72 mf-rx375 /72 the time to trip curves represent typical performance of a device in a simulated application environment. actual performance in speci c customer applications may differ from these values due to the in uence of other variables. thermal derating chart - i hold (amps) model ambient operating temperature -40 c -20 c0 c 23 c 40 c 50 c 60 c 70 c 85 c mf-rx020/72 0.31 0.27 0.24 0.20 0.16 0.14 0.13 0.11 0.08 mf-rx025/72 0.39 0.34 0.30 0.25 0.20 0.18 0.16 0.14 0.10 mf-rx030/72 0.47 0.41 0.36 0.30 0.24 0.22 0.19 0.16 0.12 mf-rx040/72 0.62 0.54 0.48 0.40 0.32 0.29 0.25 0.22 0.16 mf-rx050/72 0.78 0.68 0.60 0.50 0.41 0.36 0.32 0.27 0.20 mf-rx065/72 1.01 0.88 0.77 0.65 0.53 0.47 0.41 0.35 0.26 mf-rx075/72 1.16 1.02 0.89 0.75 0.61 0.54 0.47 0.41 0.30 mf-rx090/72 1.40 1.22 1.07 0.90 0.73 0.65 0.57 0.49 0.36 mf-rx110/72 1.71 1.50 1.31 1.10 0.89 0.79 0.69 0.59 0.44 mf-rx135/72 2.09 1.84 1.61 1.35 1.09 0.97 0.85 0.73 0.54 mf-rx160/72 2.48 2.18 1.90 1.60 1.30 1.15 1.01 0.86 0.64 mf-rx185/72 2.87 2.52 2.20 1.85 1.50 1.33 1.17 1.00 0.74 mf-rx250/72 3.88 3.40 2.98 2.50 2.03 1.80 1.58 1.35 1.00 mf-rx300/72 4.65 4.08 3.57 3.00 2.43 2.16 1.89 1.62 1.20 mf-rx375/72 5.81 5.10 4.46 3.75 3.04 2.70 2.36 2.03 1.50
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 0 w 4 11 min. (.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-r/72, mf-rx110/72-mf-rx185/72 12.7 ?.3 (0.5) (?012) device pitch: 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-r/72, mf-rx110/72-mf-rx185/72 t 1 1.5 max. (.059) tape thickness with splice: mf-rx250/72?f-rx375/72 t 1 2.3 max. (.091) splice sprocket hole alignment 0 ?.3 (?012) body lateral deviation h h 0 ? (?039) body tape plane deviation p p 0 ?.3 (?051) lead seating plane deviation p 1 p 1 3.81 ?.7 (.015) (?028) lead spacing: mf-r/72, mf-rx110/72-mf-rx185/72 f f 5.08 -0.2/+0.8 (0.2) (-0.006/+0.031) lead spacing: mf-rx250/72?f-rx375/72 f f 10.2 -0.2/+0.8 (0.402) (-0.006/+0.031) mf-r/72 & mf-rx/72 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?/iec60286-2 standards. see table below and figures 1 and 2 for details. dimensions: mm (inches)
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications mf-r/72 & mf-rx/72 series tape and reel speci cations 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 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 h n 80 max. (3.15) box 64 372 372 max. (2.52) (14.6) (14.6) consecutive missing places 3 max. empty places per reel not speci ed taped component dimensions - figure 1 reel dimensions - figure 2 dimensions: mm (inches)
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