page 1 of 5 revised: 7-jan-14 pin pin pin pin power inductor power inductor power inductor power inductor rch-108 description ? ferrite drum core construction. ? magnetically unshielded. ? l w h: 10.5 10.5 8.5mm max. ? product weight: 2.4g(ref.) ? moisture sensitivity level: 1 ? rohs compliance. environmental data ? operating temperature range: -40 +100 (including coils self temperature rise) ? storage temperature range: -40 +100 packaging ? box packaging. applications ? ideally used in printers, lcd tv, dvd, copy machine, mainboard of the compounding machines etc. as dc-dc converter inductors. rohs dimension - [mm] schematics - [mm] 8.00.5 3.5 1.0 10.00.5 0 . 7 - 0 . 0 5 + 0 . 1 5 . 0 0 . 3 4.00.3 ? (2.2 h 15 h) (18 h 1.0mh)
page 2 of 5 revised: 7-jan-14 pin pin pin pin power inductor power inductor power inductor power inductor rch-108 electrical characteristics 1: inductance measuring condition: 2.2 h 8.2 h at 7.96mhz 10 h 1.0mh at 1khz 2: the rated current indicates the lower value of c urrent when the inductance is 10% lower than its in itial value at d.c. superposition or the temperature of coil rises 40 with d.c. current passing. (ta 20 ) 0.45 2.1 1.0mh 10 % 102k rch1 0 8np-1 0 2k 0.60 0.55 0.50 1.2 1.4 1.8 560h 10 % 680h 10 % 820h 10 % 561k 681k 821k rch1 0 8np-561k rch1 0 8np-681k rch1 0 8np-821k 0.79 0.72 0.66 0.69 0.78 1.0 330h 10 % 390h 10 % 470h 10 % 331k 391k 471k rch1 0 8np-331k rch1 0 8np-391k rch1 0 8np-471k 1.1 0.96 0.87 0.35 0.45 0.61 180h 10 % 220h 10 % 270h 10 % 181k 221k 271k rch1 0 8np-181k rch1 0 8np-221k rch1 0 8np-271k 1.4 1.3 1.2 0.21 0.24 0.32 100h 10 % 120h 10 % 150h 10 % 101k 121k 151k rch1 0 8np-1 0 1k rch1 0 8np-121k rch1 0 8np-151k 1.9 1.7 1.6 0.13 0.14 0.16 56h 10 % 68h 10 % 82h 10 % 560k 680k 820k rch1 0 8np-56 0 k rch1 0 8np-68 0 k rch1 0 8np-82 0 k 2.5 2.3 2.1 0.079 0.087 0.099 33h 10 % 39h 10 % 47h 10 % 330k 390k 470k rch1 0 8np-33 0 k rch1 0 8np-39 0 k rch1 0 8np-47 0 k 3.4 3.1 2.8 0.049 0.055 0.062 18h 20 % 22h 20 % 27h 20 % 180m 220m 270m rch1 0 8np-18 0 m rch1 0 8np-22 0 m rch1 0 8np-27 0 m 4.5 4.1 3.7 0.027 0.031 0.036 10h 20 % 12h 20 % 15h 20 % 100m 120m 150m rch1 0 8np-1 00 m rch1 0 8np-12 0 m rch1 0 8np-15 0 m 5.7 5.3 5.0 11.7m 15.3m 17.0m 4.7h 20 % 6.2h 20 % 8.2h 20 % 4r7m 6r2m 8r2m rch1 0 8np-4r7m rch1 0 8np-6r2m rch1 0 8np-8r2m 7.9 7.2 6.3 8.5m 9.6m 10.9 2.2h 20 % 2.7h 20 % 3.7h 20 % 2r2m 2r7m 3r7m rch1 0 8np-2r2m rch1 0 8np-2r7m rch1 0 8np-3r7m rated current () 2 ... () [max.] (at 20) inductance [within] 1 stamp part no.
page 3 of 5 revised: 7-jan-14 pin pin pin pin power inductor power inductor power inductor power inductor rch-108 0 8 16 24 32 40 48 0 1 2 3 4 5 0 10 20 30 40 50 60 0 4 8 12 16 20 24 0 1 2 3 4 5 0 10 20 30 40 50 60 0 4 8 12 16 20 24 0 1 2 3 4 5 6 0 10 20 30 40 50 60 0 3 6 9 12 15 18 0 1 2 3 4 5 6 0 10 20 30 40 50 60 0 3 6 9 12 15 18 0 2 4 6 8 0 10 20 30 40 50 60 0 2 4 6 8 10 12 0 2 4 6 8 0 10 20 30 40 50 60 0.0 1.5 3.0 4.5 6.0 7.5 9.0 0 2 4 6 8 0 10 20 30 40 50 60 0.0 1.5 3.0 4.5 6.0 7.5 9.0 0 2 4 6 8 10 0 10 20 30 40 50 60 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 2 4 6 8 10 0 10 20 30 40 50 60 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 2 4 6 8 10 12 0 10 20 30 40 50 60 0.0 0.6 1.2 1.8 2.4 3.0 3.6 0 2 4 6 8 10 12 0 10 20 30 40 50 60 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 3 6 9 12 15 0 10 20 30 40 50 60 saturation current & temperature rise graph 1. rch108np-2r2m t ( ) l ( h) 2. rch108np-2r7m t ( ) l ( h) 3. rch108np-3r7m l ( h) dc (a) 5. rch108np-6r2m t ( ) l ( h) 6. rch108np-8r2m 7. rch108np-100m t ( ) l ( h) 8. rch108np-120m t ( ) l ( h) dc (a) 4. rch108np-4r7m t ( ) dc (a) dc (a) dc (a) dc (a) dc (a) t ( ) l ( h) t ( ) l ( h) 9. rch108np-150m t ( ) l ( h) dc (a) dc (a) l (20 ) t l (100 ) 10. rch108np-180m t ( ) l ( h) dc (a) 11. rch108np-220m t ( ) l ( h) dc (a) 12. rch108np-270m t ( ) l ( h) dc (a)
page 4 of 5 revised: 7-jan-14 pin pin pin pin power inductor power inductor power inductor power inductor rch-108 0 50 100 150 200 250 300 0.0 0.3 0.6 0.9 1.2 1.5 0 10 20 30 40 50 60 0 50 100 150 200 250 300 0.0 0.3 0.6 0.9 1.2 1.5 0 10 20 30 40 50 60 0 50 100 150 200 250 300 0.0 0.5 1.0 1.5 2.0 0 10 20 30 40 50 60 0 30 60 90 120 150 180 0.0 0.5 1.0 1.5 2.0 2.5 0 10 20 30 40 50 60 0 30 60 90 120 150 180 0.0 0.5 1.0 1.5 2.0 2.5 0 10 20 30 40 50 60 0 20 40 60 80 100 120 0.0 0.5 1.0 1.5 2.0 2.5 0 10 20 30 40 50 60 0 15 30 45 60 75 90 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 20 30 40 50 60 0 15 30 45 60 75 90 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 20 30 40 50 60 0 15 30 45 60 75 90 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 20 30 40 50 60 0 10 20 30 40 50 60 0 1 2 3 4 0 10 20 30 40 50 60 0 8 16 24 32 40 48 0 1 2 3 4 0 10 20 30 40 50 60 0 8 16 24 32 40 48 0 1 2 3 4 0 10 20 30 40 50 60 saturation current & temperature rise graph 13. rch108np-330k t ( ) l ( h) 14. rch108np-390k t ( ) l ( h) 15. rch108np-470k l ( h) dc (a) 17. rch108np-680k t ( ) l ( h) 18. rch108np-820k 19. rch108np-101k t ( ) l ( h) 20. rch108np-121k t ( ) l ( h) dc (a) 16. rch108np-560k t ( ) dc (a) dc (a) dc (a) dc (a) dc (a) t ( ) l ( h) t ( ) l ( h) 21. rch108np-151k t ( ) l ( h) dc (a) dc (a) l (20 ) t l (100 ) 22. rch108np-181k t ( ) l ( h) dc (a) 23. rch108np-221k t ( ) l ( h) dc (a) 24. rch108np-271k t ( ) l ( h) dc (a)
page 5 of 5 revised: 7-jan-14 pin pin pin pin power inductor power inductor power inductor power inductor rch-108 0 200 400 600 800 1000 1200 0.0 0.2 0.4 0.6 0.8 0 10 20 30 40 50 60 0 150 300 450 600 750 900 0.0 0.2 0.4 0.6 0.8 0 10 20 30 40 50 60 0 150 300 450 600 750 900 0.0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 0 100 200 300 400 500 600 0.0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 0 100 200 300 400 500 600 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 10 20 30 40 50 60 0 80 160 240 320 400 480 0.0 0.3 0.6 0.9 1.2 1.5 0 10 20 30 40 50 60 0 80 160 240 320 400 480 0.0 0.3 0.6 0.9 1.2 1.5 0 10 20 30 40 50 60 saturation current & temperature rise graph 25. rch108np-331k t ( ) l ( h) 26. rch108np-391k t ( ) l ( h) 27. rch108np-471k l ( h) dc (a) 29. rch108np-681k t ( ) l ( h) 30. rch108np-821k 31. rch108np-102k t ( ) l ( h) 28. rch108np-561k t ( ) dc (a) dc (a) dc (a) dc (a) dc (a) t ( ) l ( h) t ( ) l ( h) dc (a) l (20 ) t l (100 ) 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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