(1/2) 002-03 / 20080821 / e531_vlf3010s.fm ? all specifications are subject to change without notice. smd inductors(coils) for power line(wound, magnetic shielded) vlf series vlf3010s features miniature size mount area: 2.8 3.0mm low profile: 1.0mm max. height 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 contain no lead and also support lead-free soldering. it is a product conforming to rohs directive. applications power souce inductor for mobile devices such as mobile phones, hdds, and dscs 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) typical electrical characteristics inductance vs. dc superposition characteristics vlf3010st-1r0n1r7 vlf3010st-2r2m1r1 conformity to rohs directive 4r7 1.0max. 3.0 0.2 2.8 0.2 dimensions in mm 3.6 2.3 1.2 dimensions in mm part no. inductance (h) inductance tolerance(%) test frequency (mhz) dc resistance( ? ) rated current(a) ? max. typ. based on inductance change max. based on temperature rise typ. vlf3010st-1r0n1r7 1 30 1 0.049 0.041 1.7 2.3 vlf3010st-2r2m1r1 2.2 20 1 0.092 0.077 1.1 1.6 vlf3010st-3r3mr88 3.3 20 1 0.13 0.11 0.88 1.3 vlf3010st-4r7mr75 4.7 20 1 0.18 0.15 0.75 1.1 vlf3010st-6r8mr65 6.8 20 1 0.25 0.22 0.65 0.95 VLF3010ST-100MR53 10 20 1 0.49 0.41 0.53 0.7 vlf3010st-150mr38 15 20 1 0.61 0.51 0.38 0.63 vlf3010st-220mr34 22 20 1 0.97 0.81 0.34 0.5 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.5 1.0 1.5 2.0 inductance ( h ) dc current ( a ) 0.0 0.5 1.0 1.5 2.0 2.5 inductance ( h ) dc current ( a ) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 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.
(2/2) 002-03 / 20080821 / e531_vlf3010s.fm all specifications are subject to change without notice. typical electrical characteristics inductance vs. dc superposition characteristics vlf3010st-3r3mr88 vlf3010st-4r7mr75 vlf3010st-6r8mr65 VLF3010ST-100MR53 vlf3010st-150mr38 vlf3010st-220mr34 test circuit 0.0 0.5 1.0 1.5 2.0 2.5 3.5 3.0 4.0 inductance ( h ) dc current ( a ) 0.0 0.2 0.4 0.6 0.8 1.0 0 1 2 3 5 4 6 inductance ( h ) dc current ( a ) 0.0 0.2 0.4 0.6 0.8 0 1 2 3 5 4 7 6 inductance ( h ) dc current ( a ) 0.0 0.2 0.4 0.6 0.8 0 2 4 12 6 8 10 inductance ( h ) dc current ( a ) 0.0 0.2 0.4 0.6 0 20 5 10 15 inductance ( h ) dc current ( a ) 0.0 0.2 0.1 0.3 0.4 0.5 0 25 5 10 20 15 inductance ( h ) dc current ( a ) 0.0 0.2 0.1 0.3 0.4 1: lcr meter 4285a f=1mhz 2: dc constant current 1 2 a c=20,000 f l=0.1h sample
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