23 DFE252010P inductance range: 0.33~4.7 ? 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. ? optimization of electrode fo r more low dc resistance. ? magnetically shielded, low audible core noise. ? reflow solderable. ? operating temperature : -40 +125c ? halogen free, rohs compliant. ? ?? (2.5 2.0 ?? 1.0mm max.) ? ?????? ? ?????? ? ?Om????? ? ]??Q ? ?? ? ??? -40 +125c ? ???` rohs ? toko standard part numbers | ???E type DFE252010P (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 DFE252010P-r33m 0.33 ? 20 1 29 (22) 5.7 (6.4) 3.8 (4.4) DFE252010P-r47m 0.47 ? 20 1 35 (27) 5.0 (5.5) 3.5 (4.1) DFE252010P-r68m 0.68 ? 20 1 48 (40) 4.1 (4.6) 3.0 (3.5) DFE252010P-1r0m 1.0 ? 20 1 54 (45) 3.8 (4.2) 2.7 (3.2) DFE252010P-1r2m 1.2 ? 20 1 68 (57) 3.2 (3.7) 2.4 (2.8) DFE252010P-1r5m 1.5 ? 20 1 82 (68) 3.0 (3.4) 2.1 (2.5) DFE252010P-2r2m 2.2 ? 20 1 115 (96) 2.6 (2.9) 1.7 (2.0) DFE252010P-3r3m 3.3 ? 20 1 195 (160) 2.1 (2.4) 1.4 (1.7) DFE252010P-4r7m 4.7 ? 20 1 270 (220) 1.7 (1.9) 1.1 (1.3) (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 ??? ? extra low dcr type ??
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