n single blow fuse for overcurrent protection n 1005 (eia 0402) miniature footprint n slow blow fuse (fusing time 5 seconds at 250 % rated current) n ul 248-14 listed n surface mount packaging for automated assembly n multilayer smd design n rohs compliant* and halogen free** electrical characteristics sf-0402sxxxm series - slow blow multilayer surface mount fuses * rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. ** bourns considers a product to be halogen 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. singlfuse is a trademark of bourns, inc. specifcations 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 performance may vary over time. users should verify actual device performance in their specifc applications. model rated current (amps) fusing time resistance () typ.*** rated voltage breaking capacity typical i 2 t (a 2 s) **** sf-0402s050m-2 0.50 open within 5 sec. at 250 % rated current 0.380 dc 24 v dc 24 v 35 a 0.004 sf-0402s075m-2 0.75 0.210 0.007 sf-0402s100m-2 1.00 0.120 0.014 sf-0402s150m-2 1.50 0.056 0.050 sf-0402s200m-2 2.00 0.035 0.070 sf-0402s300m-2 3.00 0.021 0.110 SF-0402S400M-2 4.00 0.014 0.210 reliability testing singlfuse ? sf-0402sxxxm series features operating temperature ........................................... -55 c to +125 c storage conditions temperature .......................................................... +5 c to +35 c humidity.................................................................... 40 % to 75 % shelf life ..................................... 2 years from manufacturing date moisture sensitivity level .................................................................. 1 esd classifcation (hbm) ........................................................ class 6 environmental characteristics *** resistance value measured with 10 % rated current at 25 c ambient. ****melting i 2 t calculated at 0.001 second pre-arcing time. no. test requirement test condition test reference 1 soldering heat resistance dcr change 10 % no mechanical damage one dip at 260 c for 60 seconds mil-std-202 method 210 2 solderability minimum 95 % coverage one dip at 245 c for 5 seconds mil-std-202 method 208 3 thermal shock dcr change 10 % no mechanical damage 100 cycles between -65 c and +125 c mil-std-202 method 107 4 moisture resistance dcr change 15 % no excessive corrosion 10 cycles mil-std-202 method 106 5 salt spray dcr change 10 % no excessive corrosion 48 hour exposure, 5 % salt solution mil-std-202 method 101 6 mechanical vibration dcr change 10 % no mechanical damage 0.4 inch d.a. or 30 g between 5-3000 hz mil-std-202 method 204 7 mechanical shock dcr change 10 % no mechanical damage 1500 g, 0.5 ms, half-sine shocks mil-std-202 method 213 8 life no electrical opens during testing. voltage drop change shall be less than 20 % of initial value. 80 % rated current (75 % for 1 a fuses) for 2000 hours at ambient temperature +20 c ~ +30 c refer to stp document 9 terminal strength no mechanical damage 0.5 kg pushing force refer to stp document *rohs compliant lead free *rohs compliant & **halogen free lead free versions are rohs compliant* ul file number .................................................... e198545 http://www.ul.com/ follow link to online certifcates directory, then enter ul file no. e198545, or click here agency recognition asia-pacifc: tel: +886-2 2562-4117 ? email: asiacus@bourns.com emea: tel: +36 88 520 390 ? email: eurocus@bourns.com the americas: tel: +1-951 781-5500 ? email: americus@bourns.com www.bourns.com
n portable memory n lcd monitors n disk drives n pdas n digital cameras n mp3 players n cell phones n rechargeable battery packs n battery chargers n set-top boxes n industrial controllers n battery management systems (bms) n led lighting n power tools sf-0402sxxxm series - slow blow multilayer surface mount fuses product dimensions recommended pad layout dimensions: mm (inches) current rating thermal derating curve construction singlfuse ? sf-0402sxxxm series applications specifcations 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 performance may vary over time. users should verify actual device performance in their specifc applications. typical part marking ................ no part marking for this series how to order sf - 0402 s 050 m - 2 singlfuse? product designator smd footprint 0402 = 1005 (eia 0402) size fuse blow type s = slow blow rated current 050 ~ 400 (0.50 a ~ 4.00 a) structure type m = multilayer packaging type - 2 = tape & reel 105 80 70 60 55 65 75 85 90 95 100 50 -55 -35 -15 5 maximum operating temperature (c) derating (%) 25 45 65 85 105 125 1.00 0.10 (.039 .004) 0.25 0.10 (.010 .004) 0.70 (.028) 0.51 0.10 (.020 .004) 1.60 (.063) 0.40 (.016) 0.51 0.10 (.020 .004) 0.51 0.10 (.020 .004) ceramic body fuse element termination 1.00 0.10 (.039 .004) 0.25 0.10 (.010 .004) 0.70 (.028) 0.51 0.10 (.020 .004) 1.60 (.063) 0.40 (.016) 0.51 0.10 (.020 .004) 0.51 0.10 (.020 .004) 1.00 0.10 (.039 .004) 0.25 0.10 (.010 .004) 0.70 (.028) 0.51 0.10 (.020 .004) 1.60 (.063) 0.40 (.016) 0.51 0.10 (.020 .004) 0.51 0.10 (.020 .004) packaging quantity ................... 10,000 pieces per 7 inch reel
solder refow recommendations sf-0402sxxxm series - slow blow multilayer surface mount fuses average pre-arcing time vs. current curves average i 2 t vs. t curves rev. b 02/18/18 specifcations 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 performance may vary over time. users should verify actual device performance in their specifc applications. profle feature pb-free assembly preheat / soak: temperature min. (t smin ) temperature max. (t smax ) time (t s ) from (t smin to t smax ) 150 c 200 c 60~120 seconds ramp up rate (t l to t p ) 3 c / second max. liquidous temperature (t l ) time (t l ) maintained above t l 217 c 60~150 seconds peak package body temperature (t p ) 260 c time (t p )* within 5 c of the specifed classifcation temperature (t c ) 30 seconds* ramp down rate (t p to t l ) 6 c / second max. time 25 c to peak temperature 8 minutes max. *tolerance for peak profle temperature (t p ) is defned as a supplier minimum and a user maximum. 10 1 0.1 0.01 0.001 0.0001 0.1 11 0 current (a) pre-arcing time (s) 100 1.50 a 1.00 a 0.75 a 0.50 a 2.00 a 3.00 a 4.00 a 4.00 a 3.00 a 2.00 a 1.50 a 1.00 a 0.75 a 0.50 a 1000 100 10 1 0.1 0.01 0.001 0.0001 0.1 0.01 0.001 0.0001 11 0 time (s) i 2 t (a 2 s) time temperature (c) t l time 25 c to peak t p t s t smax t smin t p t l 25 t c -5 c preheat area max. ramp up rate = 3 c/s max. ramp down rate = 6 c/s
sf-0402sxxxm series tape and reel specifcations sf-0402sxxxm series t ape dimensions per eia 481-2 w 8.10 0.10 (.319 .004) p 0 4.0 0.10 (.157 .004) p 1 2.0 0.05 (.079 .002) p 2 2.0 0.05 (.079 .002) a 0 0.67 0.10 (.026 .004) b 0 1.17 0.10 (.046 .004) f 3.5 0.05 (.138 .002) e 1 1.75 0.10 (.069 .004) d 0 1.50 + 0.10 (.059 + .004) t 0.63 0.10 (.025 .004) dimensions: mm (inches) direction of unreeling d o a o t cover tape p o 10 p o p 2 p 1 e 1 b 0 w f 60.20 0.50 (2.370 .020) dia. 13.20 +0.3/-0.2 (.520 +.012/-.008) dia. 178.00 1.00 (7.008 .039) dia. 0.2 0.4 0.6 0.8 0.2 0.4 0.6 0.8 13.40 0.50 (.539 .020) 1.40 0.20 (.055 .008) 1.20 0.20 (.047 .008) 2.20 0.30 (.087 .012) packaging: paper tape, 10,000 pcs. per reel specifcations 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 performance may vary over time. users should verify actual device performance in their specifc applications.
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