fuses / sicherungen PFMU resettable fuses www.schurter.com 11 surface mount ptc-fuses t ype PFMU 2,8 x 3,4 mm fast tripping packaged per eia 481-1 agency recognition: ul, csa, t?v t ypical time to trip at 23 ?c fault current (a) time to trip (s) dimensions solder pad layouts applications pc motherboards pc modems usb general electronics: phones, fax machines, televisions, printers, video equipment, pda t est procedures and requirements for model PFMU series test / test test conditions / bedingungen accept/reject criteria v isual/mech. / visuell/mech. v erify dimensions and materials / kontrolle abmess./mat. per mf physical description resistance / widerstand in still air @ 23 ? / bei ruhiger luft 23 ? r min r r max time to trip / trip-zeit at specified current, v max 23 ? / bei entspr. strom t max. time to trip / tr (sec.) hold current / haltestrom 30 min. at i hold / bei haltestrom no trip trip cycle life / trip-zyklen v max , i max , 100 cycles / zyklen no arcing or burning t rip endurance / zeit im tripzustand v max , 48 hours / stunden no arcing or burning environmental characteristics operating/storage temperature / einsatz/lagertemp. -40 ? to +85 ? maximum device surface temperature in tripped state / 125 ? passive aging / passive alterung +85 ?, 1000 hours / std. 5% typ. resist. change humidity aging / feuchtigkeitsalterung +85 ?, 85% r.h. 1000 hours / std. 10% typ. resist. change thermal shock / thermischer schock +85 ?/?0 ? 20 times / zyklen 10% t yp. resist. change solvent resistance / l?sungsmittel-best?ndigkeit mil-std-202, method 215 no change v ibration mil-std-883c, method 2007.1, no change condition a t ypical part marking layout may vary manufacturer s t rademark part identification date code week 1 of 2000 = 0a (year and week) week 27 of 2000 = a0 (week and year) 50 75 100 1 01 10 100 10 1 0.01 0.001 0.1 0.1 1 10 PFMU.050.2 p fm u .01 0.2 PFMU.005.2 PFMU.110.2 PFMU.075.2 1.1 0.1 (.043 .004) 1.1 0.1 (.043 .004) 1.1 0.1 (.043 .004) 2.6 0.1 (.102 .004) min. ac b d 1.7 0.1 (.067 .004) ? PFMU.035.2 PFMU.020.2
www.schurter.com 12 t ype / typ i max v max i hold i trip initial 1 hour (r1) post- max. time tripped power resistance / reflow resistance / to trip at 23 ?c/8a / dissipation amperes at 23 ?c / ohms at 23 ?c amperes / seconds / watts at 23 ?c / av hold trip r min. r 1 max. at / bei 23 ?c at / bei 23 ?c PFMU.005.2 10 30 0.05 0.15 2.80 50.0 0.25 1.5 0.8 PFMU.010.2 10 30 0.10 0.30 0.80 15.0 0.5 0.6 0.8 PFMU.020.2 10 30 0.20 0.40 0.40 5.0 8.0 0.2 0.8 PFMU.035.2 40 6 0.35 0.75 0.20 1.30 8.0 0.2 1.0 PFMU.050.2 40 13.2 0.50 1.00 0.18 0.90 8.0 0.1 1.0 PFMU.075.2 40 6 0.75 1.50 0.07 0.45 8.0 0.1 1.2 PFMU.110.2 40 6 1.10 2.20 0.05 0.21 8.0 0.1 1.2 electrical characteristics / elektrische daten model / modell ab cd min. max. min. max. min. max. min. PFMU.005.2 3.00 3.43 2.35 2.80 0.38 0.62 0.30 (0.118) (0.135) (0.092) (0.110) (0.015) (0.025) (0.012) PFMU.010.2 3.00 3.43 2.35 2.80 0.38 0.62 0.30 (0.118) (0.135) (0.092) (0.110) (0.015) (0.025) (0.012) PFMU.020.2 3.00 3.43 2.35 2.80 0.38 0.62 0.30 (0.118) (0.135) (0.092) (0.110) (0.015) (0.025) (0.012) PFMU.035.2 3.00 3.43 2.35 2.80 0.38 0.62 0.30 (0.118) (0.135) (0.092) (0.110) (0.015) (0.025) (0.012) PFMU.050.2 3.00 3.43 2.35 2.80 0.38 0.62 0.30 (0.118) (0.135) (0.093) (0.110) (0.015) (0.024) (0.012) PFMU.075.2 3.00 3.43 2.35 2.80 0.38 0.62 0.30 (0.118) (0.135) (0.092) (0.110) (0.015) (0.025) (0.012) PFMU.110.2 3.00 3.43 2.35 2.80 0.38 0.62 0.30 (0.118) (0.135) (0.092) (0.110) (0.015) (0.025) (0.012) dimensions soldering profile how to order pf mu .xxx .x ptc-fuse style mu = 1210 surface mount component hold current, i hold 005-110 (0.05 a - 1.10 a) packaging packaged per eia 481-1 2 = t ape and reel / note PFMU models can be wave soldered and reworked. thermal derating chart-i hold (amps) t ype / typ ambient operating temperature e40 ?c e20 ?c 0 ?c 23 ?c 40 ?c 50 ?c 60 ?c 70 ?c 85 ?c PFMU.005.2 0.08 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.02 PFMU.010.2 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.04 PFMU.020.2 0.32 0.28 0.24 0.20 0.16 0.14 0.12 0.10 0.06 PFMU.035.2 0.47 0.45 0.40 0.35 0.33 0.28 0.24 0.21 0.18 PFMU.050.2 0.76 0.67 0.58 0.50 0.43 0.40 0.36 0.32 0.28 PFMU.075.2 1.00 0.97 0.86 0.75 0.64 0.59 0.54 0.48 0.40 PFMU.110.2 1.60 1.42 1.26 1.10 0.94 0.86 0.80 0.70 0.58 fuses / sicherungen PFMU resettable fuses packaging: 3000 pcs. per reel / maximum package body temperature (220 ?c) melting temperature of solder (183 ?c) 2 minutes or more preheat flux activation reflow cool 10? to 20 c per second less than 120 ?c per second 300 250 200 150 100 50 0 0 30 60 100 150 200 250 t emperature (? c) time (second) (s) dimensions in mm/inches
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