(1/2) 001-01 / 20100706 / e531_vlf302512mt.fm ? all specifications are subject to change without notice. smd inductors(coils) for power line(wound, magnetic shielded) vlf series vlf302512mt features miniature size mount area: 3.0 2.5mm low profile: 1.2mm 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. the products is halogen-free. it is a product conforming to rohs directive. applications smartphones, lcd displays, hdds, cellular phone, dvcs, dscs, 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) typical electrical characteristics inductance vs. dc superposition characteristics vlf302512mt-1r0n VLF302512MT-1R5N conformity to rohs directive 1.2max. 3.0 0.2 dimensions in mm 2.5 0.2 0.9 0.9 0.8 1.45 dimensions in mm part no. inductance (h) inductance tolerance(%) test frequency (mhz) dc resistance( ? ) rated current ? (a) max. typ. based on inductance change idc1 based on temperature rise idc2 max. typ. typ. vlf302512mt-1r0n 1.0 30 1.0 0.037 0.031 1.91 2.12 2.77 VLF302512MT-1R5N 1.5 30 1.0 0.044 0.037 1.67 1.85 2.54 vlf302512mt-2r2m 2.2 20 1.0 0.066 0.055 1.26 1.40 1.95 vlf302512mt-3r3m 3.3 20 1.0 0.108 0.090 1.08 1.20 1.63 vlf302512mt-4r7m 4.7 20 1.0 0.136 0.113 0.97 1.08 1.42 vlf302512mt-6r8m 6.8 20 1.0 0.194 0.162 0.78 0.84 1.21 vlf302512mt-100m 10 20 1.0 0.299 0.249 0.62 0.69 0.95 vlf302512mt-150m 15 20 1.0 0.448 0.373 0.51 0.57 0.80 vlf302512mt-220m 22 20 1.0 0.700 0.583 0.43 0.47 0.64 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.5 1 1.5 2 2.5 inductance ( h ) dc current ( a ) 0 0.5 1 1.5 2 0.0 0.5 1.0 1.5 inductance ( h ) dc current ( a ) 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) 001-01 / 20100706 / e531_vlf302512mt.fm all specifications are subject to change without notice. typical electrical characteristics inductance vs. dc superposition characteristics vlf302512mt-2r2m vlf302512mt-3r3m vlf302512mt-4r7m vlf302512mt-6r8m vlf302512mt-100m vlf302512mt-150m vlf302512mt-220m test circuit 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1 1.5 inductance ( h ) dc current ( a ) 0 0.5 1 1.5 0.0 1.0 2.0 3.0 4.0 inductance ( h ) dc current ( a ) 0 0.5 1 1.5 0.0 1.0 2.0 3.0 4.0 5.0 inductance ( h ) dc current ( a ) 0.0 2.0 4.0 6.0 8.0 0 0.2 0.4 0.6 0.8 1 inductance ( h ) dc current ( a ) 0 2 4 6 8 10 12 0 0.2 0.4 0.6 0.8 inductance ( h ) dc current ( a ) 0 0.2 0.4 0.6 0.8 0 5 10 15 inductance ( h ) dc current ( a ) 0 5 10 15 20 25 0 0.1 0.2 0.3 0.4 0.5 inductance ( h ) dc current ( a ) 1: lcr meter 4285a f=1mhz 2: dc constant current source 1 2 a c=20,000 f l=0.1h sample
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