21 DFE252010C inductance range: 0.47~10.0 ? h (unit: mm) (unit: mm) features L ? miniature size: 2520 footprint (2.5mm2.0mm) and low profile(1.0mm max. height) ? the use of magnetic iron powder ensure capability fo r large current. ? the use of flat wire for low dc resistance. ? magnetically shielded, low audible core noise. ? reflow solderable. ? operating temperature : -40 +85c ? halogen free, rohs compliant. ? ?? (2.5 2.0 ?? 1.0mm max.) ? ?????? ? ?????? ? ]??Q ? ?? ? ??? -40 +85c ? ???` rohs ? toko standard part numbers | ???E type DFE252010C (quantity/reel; 3,000 pcs) |? S? y? ?? S toko part number inductance l( ? h) tolerance (%) test frequency (mhz) dc resistance (m ? ) max. (typ.) rated dc current (a) max. (typ.) l/l=30% t=40 ? c 1269as-h-r47m 0.47 ? 20 1 46 (35) 3.5 (4.4) 3.1 (3.6) 1269as-h-1r0m 1.0 ? 20 1 78 (60) 2.7 (3.4) 2.5 (3.0) 1269as-h-1r5m 1.5 ? 20 1 108 (90) 2.1 (2.7) 1.9 (2.3) 1269as-h-2r2m 2.2 ? 20 1 156 (130) 1.9 (2.4) 1.5 (1.8) 1269as-h-3r3m 3.3 ? 20 1 228 (190) 1.5 (1.9) 1.2 (1.4) 1269as-h-4r7m 4.7 ? 20 1 300 (250) 1.3 (1.6) 1.0 (1.2) 1269as-h-6r8m 6.8 ? 20 1 516 (430) 1.1 (1.4) 0.76 (0.9) 1269as-h-100n 10.0 ? 30 1 689 (530) 1.0 (1.2) 0.68 (0.8) (1) inductance is measured with a lcr meter 4284a ( agilent technologies ) or equivalent. test frequency at 1mhz (2) dc resistance is measured with 34420a (agilent technologies) or 3541(hioki). (reference ambient temperature 20c) (3) maximum allowable dc current is that which causes a 30% inductance reduction from the initial value, coil temperature to rise by 40c whichever is smaller. (reference ambient temperature 20c) (1) ?? lcr ` 4284a ( agilent technologies ) ? ???y?y? 1mhz (2) ???y 34420a agilent technologies ? 3541 hioki ???y??? 20c (3) S???r??? ? 30 p?????? ?? 40c ?N?? ?? 20c ??? recommended patterns ?X?` metal alloy inductors ??? ?
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