features 72 v rated radial leaded devices cured, ame retardant epoxy polymer insulating material meets ul 94 v-0 requirements rohs compliant* and halogen free** 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 and rohs recast 2011/65/eu june 8, 2011. ** bourns follows the prevailing de nition of ?alogen free?in the industry. bourns considers a product to be ?alogen free?if (a) the bromine (br) content is 900 ppm or less; (b) the chlorine (cl) content is 900 ppm or less; and (c) the total bromine (br) and chlorine (cl) content is 1500 ppm or less . speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users 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 trip tripped power dissipation amperes at 23 ? ohms at 23 ? ohms at 23 ? amperes at 23 ? seconds at 23 ? watts at 23 ? 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 ? to +85 ? maximum device surface temperature in tripped state .................................................. 125 ? passive aging ....................................................... +85 ?, 1000 hours ....................................... ........ ? % typical resistance change humidity aging...................................................... +85 ?, 85 % r.h. 1000 hours ............................. 5 % typical resistance change thermal shock ..................................................... +85 ? to -55 ?, 10 times ................................. ... ?0 % 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 ? ................................... .............. rmin r rmax time to trip ........................................................... 5 times ihold, vmax, 23 ? ............................ ....... 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 .................................................... e174545 http://www.ul.com/ follow link to certi cations, then ul file no., enter e174545 t?v certi cate number ....................................... r 02057213 http://www.tuvdotcom.com/ follow link to ?ther certi cates? enter file no. 2057213 r x 1 10 4 18 0 s *rohs compliant & **halogen free
speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users 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 0.51 (0.020) sn/cu mf-rx065/72 9.7 (0.382) 15.2 (0.598) 5.1 (0.201) 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. k, 10/15 typical time to trip at 23 ?c speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users 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 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 series tape and reel speci cations speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users 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) 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-r/600 h n 91 max. (3.58) box: mf-r, mf-rx, mf-r/90 62 355 345 nom. (2.44) (14.0) (13.6) 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-r/600 none empty places per reel: mf-r, mf-rx, mf-r/90 not speci ed empty places per reel: mf-r/600 0.1 % speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users 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 series tape and reel speci cations reel dimensions - figure 2
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