de m 281 2 c inductance range: 0. 47 ~12 ? h (unit: mm) (unit: mm) * de m 2812c: 1.2mm max. features L ? ? ? ? ? ? ? ? ? ? ? ? ? ]??? ? NC `? m standard part numbers ???E type dem2812c (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 cu rrent (3) (a) max. (typ.) =30% temperature rise current (3) ? t=40 ? c (a) max. (typ.) 1225as - h - r 47 n =p2 0. 47 ? 30 31 ( 26 ) 2. 5 (3. 4 ) 3. 1 (3.7) 1225as - h - r68n =p2 0.68 ? 30 37 ( 31 ) 2. 0 ( 2.7 ) 2.9 (3. 4 ) 1225as - h - 1r0n=p2 1. 0 ? 30 4 3 ( 36 ) 1.8 (2.4) 2. 7 ( 3.2 ) 1225as - h - 1r5n=p2 1.5 ? 30 52 ( 43 ) 1.5 (2.1) 2. 4 (2. 8 ) 1225as - h - 2r2m=p2 2. 2 ? 20 70 ( 58 ) 1. 2 (1. 6 ) 2.0 (2. 4 ) 1225as - h - 3r3m=p2 3.3 ? 20 96 ( 8 0) 1.0 (1.4) 1.5 (1. 8 ) 1225as - h - 4r7m=p2 4.7 ? 20 1 26 ( 105 ) 0.88 (1.2) 1. 4 (1. 6 ) 1225 as - h - 6r8m=p2 6.8 ? 20 204 ( 17 0) 0.72 (0.96) 1.1 (1. 3 ) 1225as - h - 100m=p2 10 ? 20 3 0 0 (2 5 0) 0.58 (0.77) 0. 85 ( 1.0 ) 1 225 as - h - 120 m=p2 12 ? 20 350 ( 290 ) 0.55 (0.73) 0.7 6 (0. 95 ) (1) inductance is measured with a lcr meter 4284a (agilent technologies) or equiv alent. 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 is that which causes a 30% inductance reduction from the initial value, o r 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 ??
|