page 1 of 4 revised: 7-jan-14 smd smd smd smd power inductor power inductor power inductor power inductor cdrh4d28c/ld description ? ferrite drum core construction. ? magnetically shielded. ? l w h:5.1 5.1 3.0 mm max. ? product weight: 0.21g(ref.) ? moisture sensitivity level: 1 ? rohs compliance. ? halogen free available. environmental data ? operating temperature range: -40 ~+105 (including coils self temperature rise) ? storage temperature range: -40 +105 ? solder reflow temperature: 260 peak. packaging ? carrier tape and reel packaging ? 12.9diameter reel ? 2000pcs per reel applications ? ideally used in mobile phone,pda,mp3,hdd, dsc/dvc, note book pc, etc as dc-dc converter inductors. halogen free rohs dimension - [mm] land pattern and schematics - [mm] 1.0 h 6.8 h 10 h 100 h 4 . 0 6 . 5 2 . 0 4 5 4.9 0.2 max.3.0 1 2 4 . 9 0 . 2 1 . 4 0 . 2 4 . 4 0 . 3 m a x . 6 . 2
page 2 of 4 revised: 7-jan-14 smd smd smd smd power inductor power inductor power inductor power inductor cdrh4d28c/ld electrical characteristics 0.61 0.30 520(416) 100 25% l CDRH4D28CLDnp-101pc 0.72 0.36 366(293) 68 25% k CDRH4D28CLDnp-680pc 0.86 0.43 272(218) 47 25% j CDRH4D28CLDnp-470pc 0.92 0.55 223(179) 33 25% i CDRH4D28CLDnp-330pc 1.25 0.65 140(112) 22 25% h CDRH4D28CLDnp-220pc 1.6 0.81 93.4(75) 15 25% g CDRH4D28CLDnp-150pc 1.8 0.90 67.5(54) 10 25% f CDRH4D28CLDnp-100pc 2.4 1.2 48.8(39) 6.8 25% e CDRH4D28CLDnp-6r8pc 2.9 1.5 36.3(29) 4.7 25% d CDRH4D28CLDnp-4r7pc 3.2 1.6 28.9(23) 3.3 25% c CDRH4D28CLDnp-3r3pc 3.6 2.0 23.8(19) 2.2 25% b CDRH4D28CLDnp-2r2pc 4.9 3.0 17.5(14) 1.0 25% a CDRH4D28CLDnp-1r0pc temperature rise current (a) 3 saturation current (a) 2 d.c.r (m ) max. (typ.) ( 20 ) inductance ( h) [within] 1 stamp part no. 1. inductance measuring condition: at 100khz. 2. saturation current: the value of d.c. current wh en the inductance decreases to 65% of its nominal value. 3. temperature rise current: the value of d.c. curr ent when the temperature rise is t 40 (ta 20 ).
page 3 of 4 revised: 7-jan-14 smd smd smd smd power inductor power inductor power inductor power inductor cdrh4d28c/ld 0 20 40 60 80 100 120 0.0 0.2 0.4 0.6 0.8 0 10 20 30 40 50 60 0 15 30 45 60 75 90 0.0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 0 10 20 30 40 50 60 0.0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 0 6 12 18 24 30 36 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 10 20 30 40 50 60 0 5 10 15 20 25 30 0.0 0.3 0.6 0.9 1.2 1.5 0 10 20 30 40 50 60 0 3 6 9 12 15 18 0.0 0.4 0.8 1.2 1.6 2.0 0 10 20 30 40 50 60 0 2 4 6 8 10 12 0.0 0.4 0.8 1.2 1.6 2.0 2.4 0 10 20 30 40 50 60 0.0 1.5 3.0 4.5 6.0 7.5 9.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 20 30 40 50 60 0 1 2 3 4 5 6 0.0 0.6 1.2 1.8 2.4 3.0 3.6 0 10 20 30 40 50 60 0.0 0.6 1.2 1.8 2.4 3.0 3.6 0 1 2 3 4 0 10 20 30 40 50 60 0.0 0.4 0.8 1.2 1.6 2.0 2.4 0 1 2 3 4 5 0 10 20 30 40 50 60 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 1 2 3 4 5 6 0 10 20 30 40 50 60 saturation current & temperature rise graph 1. CDRH4D28CLDnp-1r0pc t ( ) l ( h) dc (a) dc (a) 2. CDRH4D28CLDnp-2r2pc t ( ) l ( h) t ( ) 3. CDRH4D28CLDnp-3r3pc l ( h) dc (a) t ( ) 4. CDRH4D28CLDnp-4r7pc l ( h) dc (a) t ( ) 5. CDRH4D28CLDnp-6r8pc l ( h) dc (a) t ( ) 6. CDRH4D28CLDnp-100pc l ( h) dc (a) t ( ) 7. CDRH4D28CLDnp-150pc l ( h) dc (a) t ( ) 8. CDRH4D28CLDnp-220pc l ( h) dc (a) dc (a) t ( ) 9. CDRH4D28CLDnp-330pc l ( h) l (20 ) t l (100 ) t ( ) 10. CDRH4D28CLDnp-470pc l ( h) dc (a) t ( ) 11. CDRH4D28CLDnp-680pc l ( h) dc (a) dc (a) t ( ) 12. CDRH4D28CLDnp-101pc l ( h)
page 4 of 4 revised: 7-jan-14 smd smd smd smd power inductor power inductor power inductor power inductor cdrh4d28c/ld 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@eu.sumida.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.+65-6841-4426 sales@sg.sumida.com tel.+82-2-6237-0777 fax.+82-2-6237-0778 sales@kr.sumida.com tel.+81-48-691-7300 fax.+81-48-691-7340 sales@jp.sumida.com san jose singapore seoul saitama(japan) 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.+86-21-5836-3299 fax.+86-21-5836-3266 shanghai.sales@cn.sumida.com tel.+852-2880-6781 fax.+852-2565-9600 sales@hk.sumida.com
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