page 1 of 3 revised: 19-mar-12 smd smd smd smd power inductor power inductor power inductor power inductor c252012/ds description ? multilayer power inductor. ? magnetically shielded. ? l w h: 2.65 2.15 1.2 mm max. ? product weight: 28mg (ref.) ? moisture sensitivity level: 1 ? rohs compliance. ? halogen free available. environmental data ? operating temperature range: -30 +85 (including coils self temperature rise) ? storage temperature range: -30 +85 ? solder reflow temperature: 260 peak. packaging ? carrier tape and reel packaging. applications ? ideally used in dc/dc converters for smart phones, cell phones, other portable instruments, hdd, and ssd. halogen free rohs dimension - [mm] land pattern and schematics - [mm] electrical characteristics 2.50.15 2 . 0 0 . 1 5 1.2 max. 1 . 8 0 . 2 0.460.2 1.3 2.5 2 . 0 0.6 900 1200 320 4.7 c252012wb-4r7 1000 1300 230 3.3 C252012WB-3R3 1400 1500 130 2.2 c252012wb-2r2 1700 1600 105 1.5 c252012wb-1r5 1900 2000 80 1.0 c252012wb-1r0 2300 2300 50 0.47 c252012wb-r47 temperature rise current (ma) 3 saturation current (ma) 2 d.c.r. (m ) 25% l( h) 20% 1 part no. 1. inductance measuring condition: at 3mhz. 2. saturation current: the value of d.c. current wh en the inductance decreases to 70% of its nominal v alue. 3. temperature rise current: the value of d.c. curr ent when the temperature rise is t 40 (ta 25 ).
page 2 of 3 revised: 19-mar-12 smd smd smd smd power inductor power inductor power inductor power inductor c252012/ds 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.0 0.4 0.8 1.2 1.6 2.0 2.4 0 10 20 30 40 50 60 0.0 0.4 0.8 1.2 1.6 2.0 2.4 0.0 0.4 0.8 1.2 1.6 2.0 0 10 20 30 40 50 60 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.3 0.6 0.9 1.2 1.5 0 10 20 30 40 50 60 0 1 2 3 4 5 6 0.0 0.3 0.6 0.9 1.2 1.5 0 10 20 30 40 50 60 0 1 2 3 4 5 6 0.0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 saturation current & temperature rise graph 1. c252012wb-4r7 t ( ) l ( h) 2. C252012WB-3R3 t ( ) l ( h) 3. c252012wb-2r2 l ( h) dc (a) 5. c252012wb-1r0 t ( ) l ( h) 4. c252012wb-1r5 t ( ) dc (a) dc (a) dc (a) dc (a) t ( ) l ( h) l (20 ) t
page 3 of 3 revised: 19-mar-12 smd smd smd smd power inductor power inductor power inductor power inductor c252012/ds solder reflow condition 170 10 ,60~120s 40s 230 245 peak heat endurance temperature chart 300 60 120 180 240 0 0 100 150 200 250 300 50 10 t () t (s) 60 260 230 0 100 150 200 250 300 50 t () 300 120 180 240 0 t (s) 60 neumarkt obernzell chicago tel.+49-9181-4509-110 fax. +49-9181-4509-310 infocomp@eu.sumida.com tel.+49-8591-937-0 fax. +49-8591-937-103 contact@sumida-eu.com tel.+1-847-545-6700 fax. +1-847-545-6720 sales@us.sumida.com taipei shenzhen shanghai hong kong tel.+1-408-321-9660 fax.+1-408-321-9308 sales@us.sumida.com tel.+65-6296-3388 fax.+65-6296-3390 sales@sg.sumida.com tel.+82-2-6237-0777 fax.+82-2-6237-0778 sales@kr.sumida.com tel.+81-3-5202-7112 fax.+81-3-5202-7105 sales@jp.sumida.com san jose singapore seoul tokyo please refer to the sales offices on our website - http://www.sumida.com tel.+886-2-8751-2737 fax.+886-2-8751-2738 sales@tw.sumida.com tel.+86-755-8291-0228 fax.+86-755-8291-0338 shenzhen.sales@cn.sumida.com tel.+86-021-5836-3299 fax.+86-021-5836-3266 shanghai.sales@cn.sumida.com tel.+852-2880-6688 fax.+852-2565-9600 sales@hk.sumida.com
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