features tip & ring line protection with two devices in one package surface mount device high voltage surge capabilities assists in meeting itu-t k.20/k.21/k.45 speci cations as well as telcordia gr-1089 intra-building rohs compliant* applications used as a secondary overcurrent protection device in: customer premise equipment (cpe) central of ce (co) subscriber line interface cards (slic) mf-sd/250 series - telecom 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. environmental characteristics operating temperature .................................... -45 c to +85 c maximum device surface temperature in tripped state ............................................ 125 c passive aging .................................................. +85 c, 1000 hours ............................................... 15 % typical resistance change ..................................................................... +60 c, 1000 hours ............................................... 15 % typical resistance change humidity aging ................................................ +85 c, 85 % r.h. 1000 hours ............................. 15 % typical resistance change thermal shock ................................................ mil-std-202f, method 107g, ............................. 10 % typ ical resistance change +125 c to -55 c,10 times 15 % typical resistance change solvent resistance .......................................... mil-std-202, method 215b ................................ no change lead solerability .............................................. ansi/j-std-002 flammability .................................................... iec 695-2-2 .................................................. ........ no flame for 60 secs. vibration .......................................................... mil-std-883c, method 2007.1, condition a ...... no change test procedures and requirements for model mf-sd/250 series test test conditions accept/reject criteria visual/mech. .................................................... verify dimensions and materials ...................... per mf p hysical description resistance ....................................................... in still air @ 23 c ........................................ ..... rmin r rmax time to trip ...................................................... at speci? ed current, vmax, 23 c ................... t max. time to trip (seconds) hold current .................................................... 30 min. at ihold ............................................. ... no trip primary test test conditions protection mains power contact - itu-t k.20, k.21 ........ 230 v rms, 10 ohms, t = 15 min. ..................... none power induction - itu-t k.20, k.21 ................ 600v rms, 600 ohms, t = 0.2 seconds ............. none power induction - itu-t k.20, k.21 ................ 600 v rms, 600 ohms, t = 1 second. ............... gdt lightning surge - itu-t k.20, k.21 ................. 1.5 kv, 10/700 s ............................................. none lightning surge ............................................... 4.0 kv, 10/700 s ............................................. gdt electrical characteristics model max. operating voltage volts max. interrupt ratings ihold itrip initial resistance 1 hour (r 1 ) post-trip resistance* nominal time to trip tripped power dissipation volts (v) amps (a) amperes at 23 c ohms at 23 c ohms at 23 c amps at 23 c seconds at 23 c watts at 23 c hold trip min. max. max. typ. MF-SD013/250 60 250 3.0 0.13 0.26 2.0 7.0 10.0 1 2.0 1.5 * r 1 value is measured 24 hours post re? ow. resistance matched in housing: 1.0 ohm measured 24 hours after re? ow installation. model ambient operating temperature -40 c -20 c 0 c 23 c 40 c 50 c 60 c 70 c 85 c MF-SD013/250 0.21 0.18 0.16 0.13 0.10 0.09 0.08 0.07 0.05 thermal derating chart -i hold (amps) *rohs compliant 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
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-sd/250 series - telecom ptc resettable fuses product dimensions recommended pad layout dimensions: mm (inches) typical part marking solder re ow recommendations 160?20 300 250 200 150 100 50 0 10?0 temperature ( c) 120 preheating soldering cooling time (seconds) solder re ow: recommended re? ow methods: ir, vapor phase oven, hot air oven. devices are not designed to be wave soldered to the bottom side of the board. gluing the devices is not recommended. recommended maximum paste thickness is 0.25 mm (.010 inch). devices can be cleaned using standard industry methods and solvents. packaging: tape & reel = 400 pcs. per reel how to order mf - sd 013/250 - 2 multifuse ? product designator series sd = surface mount dual package hold current, ihold 013 (0.13 amps) max. interrupt voltage, v 250 = 250 volts packaging - 2 = tape and reel* *packaged per eia481-2 8.90 (.350) max. max. max. 7.2 (.283) 3.9 (.154) 0.5 (.020) 2 plcs. 10.2 (402) 2.4 (.094) 7.2 (.283) max. 8.90 (.350) max. 3.2 (.126) 2.0 (.079) 2.4 (.094) 6.3 (.248) 3.9 (.154) 8.2 (.323) 1 2 3 4 sd013 manufacturer's trademark part identification 0.01 0.1 1 10 100 1000 0 0.5 1 1.5 2 2.5 3 fault current (amps) time to trip (seconds) note: if re? ow temperatures exceed the recommended pro? le, devices may not meet the performance requirements. rework: a device should not be reworked. typical time to trip at 23 ?c 1 2 3 4 schematic
mf-sd/250 series - telecom ptc resettable fuses storage recommendations the recommended long term storage conditions for multifuse ? polymer ptc devices are 40 c maximum and 70 % rh maximum. all devices should remain in the original sealed packaging prior to use. devices may not conform with data sheet speci? cations if these storage recommendations are exceeded. devices stored in this manner have an inde? nite shelf life. packaging dimensions mf-sd/250 series tape dimensions per eia 481-2 w 24.0 0.5 (0.945 0.020) p 0 4.0 (0.157) p 16.0 (0.630) p 2 2.0 (0.079) a 0 7.5 0.2 (0.295 0.008) b 0 9.0 0.2 (0.354 0.008) d 1.5 (0.059) f 11.5 (0.453) e 1.75 (0.069) t 0.5 0.15 (0.020 0.006) k 0 10.0 0.2 (0.394 0.008) leader min. 390 (15.35) trailer min. 160 (6.30) dimensions: mm (inches) a 0 p p 0 t k 0 b 0 f e w p 2 -0.4 (-.016) d speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mf-sd/250, rev. b 08/11 13.2 +0.2/-0 (.520 +.008/-0 100 1.5 (3.94 .059) dia. 24.4 (.961) 30.4 (1.197) max. min. 330 -2/+0 (12.99 -.079/+0) dia.
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