s c rh7 4 500 bayview avenue, inwood, ny 11096 toll free 866 - 239- 5777 ? tel 516 -239- 5777 ? fax 516 - 239 - 7208 www.signaltransformer.com sales@signaltransformer.com ? techhelp@signaltransformer.com 124 click here for quantity per reel & packing information smd power inductors features 1. magnetically shielded construction 2 excellent power density 3 engineered to provide high efficiency electrical characteristics part num b er inductance (uh) (1) test frequency dc resistance ( max ) (2) saturation current (a) tem per a ture c urrent (a) s crh74 - 100 10 1khz 53m 1.84 2.40 s crh74 - 120 12 1khz 58m 1.71 2.21 s crh74 - 150 15 1khz 81m 1.47 2.09 s crh74 - 180 18 1khz 91m 1.31 1.81 s crh74 - 220 22 1khz 0.11 1.23 1.73 s crh74 - 270 27 1khz 0.15 1. 12 1.60 s crh74 - 330 33 1khz 0.17 0.96 1.36 s crh74 - 390 39 1khz 0.23 0.91 1.26 s crh74 - 470 47 1khz 0.26 0.88 1.18 s crh74 - 560 56 1khz 0.35 0.75 1.05 s crh74 - 680 68 1khz 0.38 0.69 1.04 s crh74 - 820 82 1khz 0.43 0.61 0.91 s crh74 - 101 100 1khz 0.61 0.60 0.7 5 s crh74 - 121 120 1khz 0.66 0.52 0.70 s crh74 - 151 150 1khz 0.88 0.46 0.65 s crh74 - 181 180 1khz 0.98 0.42 0.60 s crh74 - 221 220 1khz 1.17 0.36 0.55 s crh74 - 271 270 1khz 1.64 0.34 0.55 s crh74 - 331 330 1khz 1.86 0.32 0.47 s crh74 - 391 390 1khz 2.85 0.29 0.42 s crh74 - 471 470 1khz 3.01 0.26 0.38 s crh74 - 561 560 1khz 3.62 0.23 0.32 s crh74 - 681 680 1khz 4.63 0.22 0.30 s crh74 - 821 820 1khz 5.20 0.20 0.25 s crh74 - 102 1000 1khz 6.00 0.18 0.25 (1 ). inductance tolerance 2 0% tested at 0.25v , 0adc and 25 (2) . dcr measured at 25 . (3) . the dc current at which the inductance decreases by 2 5 % from its initial value . (4) . the dc current that results in a 40 temperature rise from 25 ambient . (3) (4) xxx marking 1 10 100 1000 100 1000 10000 10 bcrh74 i nduct ance decr ease by cur r ent i nduct ance( uh) 100000 dc cur r ent ( ma) 10000 102 101 100 500 1000 1500 2000 2500 3000 3500 0 4000 bcrh74 temper at ur e r i se by cur r ent temper at ur e r i se dc c u r r e n t ( ma) 80 70 60 50 40 30 20 10 4500 100 101 102 s crh74 inductance decrease by current inductance (h) dc current (ma) dc current (ma) temperature rise c s crh74 temperature rise by current custom v ersion s available upon request. ? 2011 s ignal transformer ? specification subject to change without notice. 07.11
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