(1/1) 001-04 / 20060612 / e531_vlcf4020.fm ? all specifications are subject to change without notice. smd inductors(coils) for power line(wound, magnetic shielded) vlcf series vlcf4020 features miniature size mount area: 4 4mm height: 2.0mm max. generic use for portable dc to dc converter line high magnetic shield construction should actualize high resolu- tion for emc protection. available for automatic mounting in tape and real package. the products do not contain lead and support lead-free solder- ing. applications dc to dc converters for dvc, dsc, pda, md, lcd displays, hdds, etc. shapes and dimensions recommended pc board pattern electrical characteristics ? rated current: value obtained when current flows and the temperature has risen to 40c or when dc current flows and the nominal value of inductance has fallen by 30%, whichever is smaller. operating temperature range: ?40 to +105c (including self-temperature rise) conformity to rohs directive 4.0 0.1 4.3max. ( include solder ) 4.0 0.1 2.0max. dimensions in mm 4r7 2.5 45? 3.9 1.6 1.6 1.3 4.5 dimensions in mm part no. inductance (h) inductance tolerance(%) test frequency (khz) dc resistance( ? ) rated current(a) ? max. typ. based on inductance change max. based on temperature rise typ. vlcf4020t-1r8n1r9 1.8 30 100 0.051 0.046 1.97 2.37 vlcf4020t-2r2n1r7 2.2 30 100 0.059 0.054 1.72 2.19 vlcf4020t-3r3n1r5 3.3 30 100 0.078 0.071 1.52 1.94 vlcf4020t-4r7n1r2 4.7 30 100 0.098 0.089 1.24 1.71 vlcf4020t-6r8n1r0 6.8 30 100 0.131 0.119 1.05 1.47 vlcf4020t-100mr85 10 20 100 0.185 0.168 0.85 1.22 vlcf4020t-150mr68 15 20 100 0.303 0.275 0.68 1.0 vlcf4020t-220mr56 22 20 100 0.431 0.391 0.56 0.8 vlcf4020t-270mr48 27 20 100 0.496 0.451 0.48 0.8 vlcf4020t-330mr47 33 20 100 0.628 0.571 0.47 0.69 vlcf4020t-470mr39 47 20 100 0.934 0.849 0.39 0.56 vlcf4020t-101mr26 100 20 100 1.4 1.308 0.26 0.45 conformity to rohs directive: this means that, in conformity with eu directive 2002/95/ec, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, pbb and pbde, have not been used, except for exempted applications.
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