dem2818c inductance range: 0.47 ~12 ? h (unit: mm) (unit: mm) * de m 2818c: 1.8 mm max. features L ? ? ? ? ? ? ? ? ? ? ? ? ? ]??? ? NC `?m standard part numbers ???E type dem2818c (magnetically shielded, quantity/reel; 2,000 pcs) ? (1) S ?? (2) ??S (3) ??NS (3) part number inductance (1) ( ? h) tolerance (%) dc resistance (2) (m ? ) max. (typ.) inductance decrease current (3) (a) max. (typ.) =30% temperature rise current (3) ? t=40 ? c (a) max. (typ.) 12 27as - h - r47n=p2 0. 47 ? 30 20 ( 17 ) 3.3 ( 4.4 ) 4 . 7 ( 5 . 5 ) 1227as - h - 1r0n=p2 1. 0 ? 30 29 ( 24 ) 2.3 ( 3.1 ) 3 . 7 ( 4 . 3 ) 1227as - h - 1r5n=p2 1.5 ? 30 32 ( 27 ) 2.0 (2. 6 ) 3 . 4 ( 4.0 ) 1227as - h - 2r2m=p2 2. 2 ? 20 4 7 ( 39 ) 1. 7 ( 2.2 ) 2 . 6 ( 3 . 1 ) 1227as - h - 3r3m=p2 3 . 3 ? 20 67 ( 56 ) 1 . 3 (1. 7 ) 2 . 0 ( 2 . 4 ) 1227as - h - 4r7m=p2 4 . 7 ? 20 92 ( 77 ) 1.1 ( 1 . 4 ) 1 .8 ( 2 .1) 1 227 as - h - 6r8 m=p2 6 . 8 ? 20 146 ( 122 ) 0. 90 ( 1 . 2 ) 1 . 3 ( 1 . 5 ) 1 227 as - h - 1 0 0 m=p2 1 0 ? 20 204 ( 170 ) 0. 7 5 ( 1.0 ) 1 . 2 ( 1 . 4 ) 1 227 as - h - 120 m=p2 12 ? 20 258 (215) 0.65 (0.87) 1.0 (1.2) (1) induc tance is measured with a lcr meter 4284a (agilent technologies) or equivalent. test frequency at 100khz (2) dc resistance is measured with 34420a (agilent technologies) or 3541(hioki). (reference ambient temperature 25c) (3) maximum allowable dc current i s that which causes a 30% inductance reduction from the initial value, or coil temperature to rise by 40c, whichever is smaller. (reference ambient temperature 20c) (1) ?? lcr ` 4284a agilent technologies ????y? y? 100khz (2) ???y 34420a agilent technologies ? 3541 hioki ???y??? 25c (3) S???r??? ? 30 p?????? ?? 40 c ?N???? 20 c ??? ? l l recommended patterns ?X?` ferrite inductors ??
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