d128c inductance range: 1.4~47 h
(unit: mm) (unit: mm) ? 12.3mm max. square and 8.0mm max. height. ? magnetically shielded construction low dc resistance. ? suitable for large current. ? ideal for dc-dc converter inductor applications in hand held personal computer, etc. ? rohs compliant. ? 12.3mm max. z?^ 8.0mm max. ? ?? z ? v
? ? g ?v 0 ? ??1?srw dc-dc ???;????? t7 & ? rohs |? 0 selection guide for standard coils type d128c (quantity/reel; 400 pcs) f?
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? (2) v o t?0 ?v (3) 9 s ?0 ?v (3) toko part number inductance (1) ( h) tolerance (%) dc resistance (2) (m ) max. inductance decrease current (3) (a) max. =10% temperature rise current (3) t=40 c (a) max. #931as-1r4n 1.4 30 4.1 15.0 12.8 #931AS-2R3N 2.3 30 6.5 12.6 11.9 #931as-3r4m 3.4 20 6.8 10.6 10.9 #931as-4r7m 4.7 20 9.6 8.7 8.5 #931as-6r3m 6.3 20 11 7.9 8.0 #931as-8r0m 8.0 20 12 6.4 7.7 #931bs-100m 10.0 20 12.7 5.8 7.4 #931bs-120m 12.0 20 14 5.3 6.8 #931bs-150m 15.0 20 15.8 4.6 6.4 #931bs-180m 18.0 20 24 4.4 5.1 #931bs-220m 22.0 20 28.3 3.9 4.5 #931bs-270m 27.0 20 32.7 3.5 4.3 #931bs-330m 33.0 20 44 3.1 3.7 #931bs-420m 42.0 20 52.6 3.0 3.3 #931bs-470m 47.0 20 55.6 2.8 3.1 (1) inductance is measured with a lcr meter 4284a (agilent technologies) or equivalent. test frequency at 100khz (2) dc resistance is measured with a digital multimeter tr6871 (advantest) or equivalent. (3) maximum allowable dc current is that which causes a 10% inductance reduction from the initial value, or coil temperature to rise by 40c, whichever is smaller.(reference ambient temperature: 20c) (1) ??????x lcr y?? 4284a agilent technologies ?h x ? s
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:x 100khz pb{ (2) v
?x?????y?? tr6871(advantest) ?hx ? s
?t?? b?{ (3) 7 g?0 ?vxz v o t ?v?v`h??????w ?u s8 ??? 10 ?n ?b? v ?v ?z?hx v ?vt??z ??w9 su 40 ? w??t ?^m ?pb{ *?9 s 20 ? ?, jqb?{ l l features ? ? ? recommended patterns
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$ fixed inductors for surface mounting ?? ?
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