features high power ratings compliant with aec-q200 rev-c- stress test quali cation for passive components in automotive applications low pro le compatible with pb and pb-free solder re ow pro les rohs compliant* and halogen free** surface mount packaging for automated assembly agency recognition: standard 7555 mm (2920 mils) footprint mf-lsmf series - ptc resettable fuses *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. **bourns is using the de nition that appears to be the prevalent de nition used as the industry standard at this time. the bourns de nition of ?alogen-free?is: bromine (br) content: 900 ppm; chlorine (cl) content: 900 ppm; total br + cl content: 1500 ppm. 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. environmental characteristics operating 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 -40 ?, 20 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 electrical characteristics model*** v max. volts i max. amps i hold i trip resistance max. time to trip tripped power dissipation amperes at 23 ? ohms at 23 ? amperes at 23 ? seconds at 23 ? watts at 23 ? hold trip r min. r 1max. typ. mf-lsmf185/33x 33.0 40 1.85 3.70 0.045 0.150 8.0 2.50 1.5 mf-lsmf260x 24.0 20 2.60 5.20 0.020 0.075 8.0 5.00 1.5 mf-lsmf300x 6.0 40 3.00 5.00 0.015 0.048 8.0 20.00 1.5 mf-lsmf300/24x 24.0 20 3.00 5.20 0.020 0.075 8.0 5.00 1.5 *** features multifuse free xpansion design for mf-lsmf series. test procedures and requirements for model mf-lsmf series test test conditions accept/reject criteria visual/mech. ......................................................... verify dimensions and materials ......................... .. per mf physical description resistance ............................................................ in still air @ 23 ? ................................... .............. rmin r r1max time to trip ........................................................... at speci ed current, 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 solderability .......................................................... ansi/j-std-002 ........................................ ........... 95 % min. coverage 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 50256634 http://www.tuvdotcom.com/ follow link to ?erti cate search? enter 50256634 *rohs compliant & aec approved
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-lsmf series - ptc resettable fuses product dimensions dimensions: mm (inches) applications automotive electronics industrial controls ieee ports portable electronics model abcde min. max. min. max. min. max. min. min. max. mf-lsmf185/33x 6.73 (0.265) 7.98 (0.312) 4.80 (0.189) 5.44 (0.214) 0.75 (0.030) 1.60 (0.063) 0.30 (0.012) 0.25 (.010) 2.00 (.079) mf-lsmf260x 6.73 (0.265) 7.98 (0.312) 4.80 (0.189) 5.44 (0.214) 0.75 (0.030) 1.60 (0.063) 0.30 (0.012) 0.25 (.010) 2.00 (.079) mf-lsmf300x 6.73 (0.265) 7.98 (0.312) 4.80 (0.189) 5.44 (0.214) 0.35 (0.014) 0.85 (0.033) 0.30 (0.012) 0.25 (.010) 2.00 (.079) mf-lsmf300/24x 6.73 (0.265) 7.98 (0.312) 4.80 (0.189) 5.44 (0.214) 0.75 (0.030) 1.60 (0.063) 0.30 (0.012) 0.25 (.010) 2.00 (.079) packaging: 3000 pcs. per reel. terminal material: electroless ni under immersion au termination pad solderability: standard au nish: meets ansi/j-std-002 category 2. recommended storage: 40 ? max./70 % rh max. typical time to trip at 23 ?c 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. top view bottom view side view recommended pad layout 9 x a b d e c 5.3 ?0.10 (.209 ?.004) 4.6 ?0.10 (.181 ?.004) 2.0 ?0.05 (.079 ?.002) 0 0 1 0 1 1 fault current (amps) 0.1 0.01 1 10 100 time to trip (seconds) mf-lsmf260x mf-lsmf300/24x mf-lsmf300x mf-lsmf185/33x
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. 3312 - 2 mm smd trimming potentiometer mf-lsmf series - ptc resettable fuses thermal derating chart - i hold (amps) model ambient operating temperature -40 ?c -20 ?c 0 ?c 23 ?c 40 ?c 50 ?c 60 ?c 70 ?c 85 ?c mf-lsmf185/33x 2.80 2.47 2.17 1.85 1.54 1.39 1.22 1.07 0.85 mf-lsmf260x 3.75 3.35 3.00 2.60 2.35 2.15 2.05 1.80 1.30 mf-lsmf300x 4.53 4.02 3.51 3.00 2.52 2.26 1.99 1.75 1.34 mf-lsmf300/24x 4.00 3.55 3.20 3.00 2.50 2.25 2.15 1.85 1.50 160?20 300 250 200 150 100 50 0 10?0 temperature ( c) 120 preheating soldering cooling time (seconds) solder re ow recommendations notes: ? mf-lsmf models cannot be wave soldered. please contact bourns for hand soldering recommendations. ?if re ow temperatures exceed the recommended pro le, devices may not meet the performance requirements. ? compatible with pb and pb-free solder re ow pro les. how to order mf - lsmf 185/33x - 2 multifuse product designator series lsmf = 7555 mm (2920 mils) surface mount component hold current, ihold 185-300 (1.85 amps - 3.00 amps) higher voltage option /24 = 24 volt rated /33 = 33 volt rated x = multifuse freexpansion design mf-lsmf series packaging packaged per eia 481-1 -2 = tape and reel typical part marking represents total content. layout may vary. mf-lsmf series, rev. b, 07/13 part identification examples: mf-lsmf185/33x = 9 mf-lsmf260x = e mf-lsmf300x = f mf-lsmf300/24x = j bi-weekly date code: weeks 47-48 = x e x
mf-lsmf185/33x, mf-lsmf260x, mf-lsmf300x mf-lsmf300/24x tape dimensions per eia 481-2 per eia 481-2 w 16.0 0.30 16.0 0.30 (0.630 0.012) (0.630 0.012) p 0 4.0 0.10 4.0 0.10 (0.157 0.004) (0.157 0.004) p 1 8.0 0.10 8.0 0.10 (0.315 0.004) (0.315 0.004) p 2 2.0 0.05 2.0 0.05 (0.079 0.002) (0.079 0.002) a 0 5.74 0.10 5.70 0.10 (0.226 0.004) (0.224 0.004) b 0 8.02 0.10 8.10 0.10 (0.316 0.004) (0.319 0.004) b 1 max. 12.1 12.1 (0.476) (0.476) d 0 1.5 + 0.10/-0.0 1.5 + 0.10/-0.0 (0.059 + 0.004/-0) (0.059 + 0.004/-0) f 7.5 0.05 7.5 0.05 (0.295 0.002) (0.295 0.002) e 1 1.75 0.10 1.75 0.10 (0.069 0.004) (0.069 0.004) e 2 min. 14.25 14.25 (0.561) (0.561) t max. 0.6 0.6 (0.024) (0.024) t 1 max. 0.1 0.1 (0.004) (0.004) k 0 0.91 0.10 1.70 0.10 (0.036 0.004) (0.067 0.004) leader min. 390 390 (15.35) (15.35) trailer min. 160 160 (6.30) (6.30) reel dimensions a max. 331 331 (13.03) (13.03) n min. 50 50 (1.97) (1.97) w 1 16.4 + 2.0/-0.0 16.4 + 2.0/-0.0 (0.646 + 0.079/-0.0) (0.646 + 0.079/-0.0) w 2 max. 22.4 22.4 (0.882) (0.882) mf-lsmf 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. b 1 n(hub dia.) (measured at hub) a t cover tape k 0 t 1 a 0 w 2 (measured at hub) w 1 p 1 b 0 f d 0 p 2 p 0 e 2 e 1 w dimensions: mm (inches) note: effective december 1, 2010 (product date code ??, the cover tape was changed to the new 3m universal cover tape (uct).
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