environmental characteristics operating temperature .................................... -20 c to +85 c humidity aging................................................. +85 c, 85 % r.h. 1000 hours .........................r min r r1 max passive aging .................................................. +85 c, 1000 hours ...........................................r min r r1 max vibration .......................................................... mil-std-883c, method 2007.1,.......................no chang e condition a solvent resistance .......................................... mil-std-202, method 215 ...............................no change test procedures and requirements for model mf-rm series item test conditions accept/reject criteria visual/mechanical ............................................ verify dimensions and material .........................per mf physical description resistance ....................................................... in still air @ 23 c ........................................ .....r min r r1 max time to trip ...................................................... 240 vac, speci? ed current ................................t max. time to trip hold current .................................................... at ihold ..............................................................no trip trip cycle life .................................................. 240 vac, i max , 100 cycles ................................no arcing or burning trip endurance ................................................ a) 240 vac, i max , 24 hours ..............................no arcing or burning b) 265 vac, i max , 30 mins. solderability ..................................................... mil-std-202, method 208 ...............................95 % min. coverage ul file number ............................................... e174545 electrical characteristics model typical current trip limit v max i max initial resistance one hour post-trip resistance max. time to trip tripped power dissipation i hold at 23 ? i trip at 23 ? operating voltage interrupt voltage interrupt current r min. at 23 ? r 1 max. at 23 ? at 23 ? pd typ. at 23 ? (a) (a) (vac) (vac) (a) (ohms) (ohms) (a) (sec.) (w) mf-rm005/240 0.05 0.12 240 265 1.0 18.50 65.00 0.25 10.0 0.9 mf-rm008/240 0.08 0.19 240 265 1.2 7.40 26.00 0.40 10.0 0.9 mf-rm012/240 0.12 0.30 240 265 1.2 3.00 12.00 0.60 15.0 1.0 mf-rm016/240 0.16 0.37 240 265 2.0 2.50 7.80 0.80 15.0 1.4 mf-rm025/240 0.25 0.56 240 265 3.5 1.30 3.80 1.25 18.5 1.5 mf-rm033/240 0.33 0.74 240 265 4.5 0.77 2.60 1.65 21.0 1.7 mf-rm040/240 0.40 0.90 240 265 5.5 0.60 1.90 2.00 24.0 2.0 mf-rm055/240 0.55 1.25 240 265 7.0 0.45 1.45 2.75 26.0 3.4 features radial leaded devices cured, ame retardant epoxy polymer insulating material meets ul 94v-0 requirements bulk packaging, tape and reel available resettable circuit protection agency recognition: rohs compliant* applications food blenders, coffee machines hvac electric fans, blowers ac adaptors mf-rm series - ptc resettable fuses *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. *rohs compliant rm055 0220s
mf-rx series - ptc resettable fuses product dimensions advantages resettable feature with overtemperature and overcurrent protection can save expensive components from having to be replaced after tripping, e.g., transformers with built in thermal fuses faster than bimetallic switch designs that take on average approximately 30 seconds to cool down and reset generally lower electromagnetic interference than bimetallic switches bene ts reduced repair and replacement costs reduced nuisance tripping combined overcurrent and overtemperature protector in one device model a b c d e physical characteristics max. max. nom. tol. ?min. max. style lead dia. material mf-rm005/240 8.3 12.9 5.1 0.7 7.6 3.8 1 0.51 sn/cu (0.327) (0.508) (0.201) (0.028) (0.299) (0.150) (0.020) mf-rm008/240 8.3 12.9 5.1 0.7 7.6 3.8 1 0.51 sn/cu (0.327) (0.508) (0.201) (0.028) (0.299) (0.150) (0.020) mf-rm012/240 8.3 12.9 5.1 0.7 7.6 3.8 1 0.51 sn/cu (0.327) (0.508) (0.201) (0.028) (0.299) (0.150) (0.020) mf-rm016/240 9.9 13.8 5.1 0.7 7.6 3.8 1 0.51 sn/cu (0.390) (0.543) (0.201) (0.028) (0.299) (0.150) (0.020) mf-rm025/240 10.0 20.0 5.1 0.7 7.6 3.8 2 0.65 sn/cu (0.394) (0.787) (0.201) (0.028) (0.299) (0.150) (0.026) mf-rm033/240 11.4 20.0 5.1 0.7 7.6 3.8 2 0.65 sn/cu (0.449) (0.787) (0.201) (0.028) (0.299) (0.150) (0.026) mf-rm040/240 11.5 20.9 5.1 0.7 7.6 3.8 2 0.65 sn/cu (0.453) (0.823) (0.201) (0.028) (0.299) (0.150) (0.026) mf-rm055/240 14.0 22.4 5.1 0.7 7.6 4.1 2 0.81 sn/cu (0.551) (0.882) (0.201) (0.028) (0.299) (0.161) (0.032) packaging options: bulk: 500 pcs. per bag. tape & reel: 2000 pcs. per reel (mf-rm005/240~mf-rm040/240); 1000 pcs. per reel (mf-rm055/240) d b e lead dia. c a d b e lead dia. c a typical part marking represents total content. layout may vary. rm055 0220s manufacturer's trademark part identification date code (first digit = last digit of year; next three digits = day of year) country of manufacture (t = taiwan s = china) speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-rm series - ptc resettable fuses thermal derating chart - i hold (amps) model ambient operating temperature -20 ? 0 ? 23 ? 40 ? 50 ? 60 ? 70 ? 85 ? mf-rm005/240 0.08 0.06 0.05 0.04 0.04 0.03 0.03 0.02 mf-rm008/240 0.12 0.10 0.08 0.07 0.06 0.05 0.04 0.03 mf-rm012/240 0.18 0.15 0.12 0.10 0.09 0.07 0.06 0.04 mf-rm016/240 0.24 0.20 0.16 0.13 0.11 0.10 0.08 0.05 mf-rm025/240 0.38 0.32 0.25 0.21 0.18 0.15 0.13 0.09 mf-rm033/240 0.50 0.42 0.33 0.27 0.23 0.20 0.17 0.11 mf-rm040/240 0.61 0.51 0.40 0.33 0.28 0.24 0.20 0.14 mf-rm055/240 0.80 0.68 0.55 0.46 0.40 0.35 0.29 0.22 0.51 (24awg) 0.65 (22awg) 0.81 (20awg) style 1 style 2 dimensions: mm (inches)
mf-rm series, rev. a, 08/12 how to order mf - rm 005 / 240 - 2 multifuse product designator series rm = radial leaded component hold current, i hold 005-055 (0.05 amps - 0.55 amps) operating voltage, v max 240 = 240 vac packaging options - 0 = bulk packaging - 2 = tape and reel *packaged per eia486-b typical time to trip at 23 ?c 100 10 1 0.1 0.1 fault current (amps) time to trip (seconds) 110 a = mf-rm005/240 b = mf-rm008/240 c = mf-rm012/240 d = mf-rm016/240 e = mf-rm025/240 f = mf-rm033/240 g = mf-rm040/240 h = mf-rm055/240 a b c d e f g h speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications mf-rm series - ptc resettable fuses asia-paci c: tel: +886-2 2562-4117 ?fax: +886-2 2562-4116 europe: tel: +41-41 768 5555 ?fax: +41-41 768 5510 the americas: tel: +1-951 781-5500 ?fax: +1-951 781-5700 www.bourns.com
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) (?079) abscissa to plane (mf-rm005/240~mf-rm016/240) h h 18.5 ?.0 (.728) (?118) abscissa to plane (mf-rm025/240~mf-rm055/240) h 0 h 0 16 ?.5 (.63) (?02) abscissa to top (mf-rm005/240~mf-rm016/240) h 1 h 1 32.2 max. (1.268) abscissa to top (mf-rm025/240~mf-rm055/240) h 1 h 1 45.0 max. (1.772) overall width w/lead protrusion (mf-rm005/240~mf-rm016/240) c 1 43.2 max. (1.701) overall width w/lead protrusion (mf-rm025/240~mf-rm055/240) c 1 56.0 max. (2.205) overall width w/o lead protrusion (mf-rm005/240~mf-rm016/240) c 2 42.5 max. (1.673) overall width w/o lead protrusion (mf-rm025/240~mf-rm055/240) c 2 56.0 max. (2.205) 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 (.500) (?012) pitch tolerance 20 consecutive ? (?039) device pitch (mf-rm005/240-mf-rm040/240) 12.7 ?.3 (.500) (?012) device pitch (mf-rm055/240) 25.4 ?.6 (1.00) (?024) tape thickness t t 0.9 max. (.035) tape thickness with splice (mf-rm005/240~mf-rm040/240) t 1 1.5 max. (.059) tape thickness with splice (mf-rm055/240) 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 (?012) lead seating plane deviation p 1 p 1 3.81 ?.7 (.015) (?028) lead spacing f f 5.08 +0.8/-0.5 (.200) (+.031/-.020) mf-rm 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)
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 (mf-rm005/240~mf-rm040/240) w w 2 56.0 max. (2.20) reel width (mf-rm055/240) w w 2 63.5 max. (2.50) reel diameter d a 370.0 max. (14.57) space between anges (mf-rm005/240~mf-rm040/240) h w 1 48.0 max. (1.89) space between anges (mf-rm055/240) h w 1 55.0 max. (2.17) arbor hole diameter f c 26.0 ?2.0 (1.02) (?472) core diameter h n 91.0 max. (3.58) box 64 372 372 max. (2.5) (14.6) (14.6) consecutive missing places 3 max. empty places per reel 0.1 % max. mf-rm 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. taped component dimensions - figure 1 reel dimensions - figure 2 h w h f d reel upper side tape lower side user direction of feed dimensions: mm (inches)
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