specification for approval document : sig4012-xxx_070 revision : a5 page : 1 of 11 sig0412-xxx sealed choke coil 1. features low profile 3.9mm x 3.9mm x 1.2mm low coil resistance with large currents. high magnetic shield construction should actualize high resolution for emc protection. 100% lead (pb) free meet rohs standard 2. application cellular phones, lcd displays, hdds, dvcs, dscs, pd as etc.. 3. type designation sig 4012 C xxx (1) (2) (3) where (1) series no : (2) size : 4012 = 3.8mm x 3.8mm x 1.2mm (3) inductance value : 3r3 = 3.3 m h 4. outline dimensions note this graph is only regard to dimensions spec. for o uter appearance, please refer to actual product. code dimensions (mm) l 3.8 0.2 w 3.8 0.2 t 1.2 max p 1.0 0.2 l w p t p
specification for approval document : sig4012-xxx_070 revision : a5 page : 2 of 11 b c a 5. recommend land pattern dimensions the customer shall determine the land dimensions sh own above after confirming and safety. 6. specifications r dc ( m w ) heat rating current dc amps. idc ( a ) saturation current dc amps. isat ( a ) part number l0 inductance ( m h ) @ (0a) typical maximum typical maximum typical maximum sig4012-1r0 1.0 50 60 3.10 2.79 2.80 2.52 sig4012-1r5 1.5 60 70 2.80 2.52 2.40 2.16 sig4012-2r2 2.2 70 84 2.60 2.34 1.90 1.71 sig4012-3r3 3.3 85 102 2.30 2.07 1.60 1.44 sig4012-4r7 4.7 110 132 1.80 1.62 1.40 1.26 sig4012-6r8 6.8 130 156 1.70 1.53 1.20 1.08 sig4012-8r2 8.2 165 190 1.40 1.26 1.10 0.99 sig4012-100 10.0 200 240 1.30 1.17 1.00 0.90 sig4012-220 22.0 410 492 0.95 0.855 0.70 0.63 sig4012-330 33.0 650 780 0.60 0.54 0.53 0.48 SIG4012-470 47.0 850 1,020 0.50 0.45 0.46 0.41 * if you require another part number please contact w ith us. ** inductance tolerance 20% note 1. all test data is referenced to 25 ambient. note 2. test condition : 1mhz, 1.0vrms note 3. idc : dc current (a) that will cause an approximate t of 40 note 4. isat : dc current (a) that will cause lo to drop ap proximately 30% note 5. operating temperature range -55 to + 125 note 6. the part temperature (ambient + temp rise ) should not exceed 125 under worse case operating conditions. circuit design , component placement, p wb trace size and thickness, airflow and other cooling provision all affect the part temperature. part temperature should be verified in the end application. note 7. the rated current as listed is either the saturatio n current or the heating current depending on which value is lower. a 3.7 b 1.6 c 4.0 unit : mm
specification for approval document : sig4012-xxx_070 revision : a5 page : 3 of 11 6-1 current characteristic sig4012-1r0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 dc bias(amps) inductance( h) 0 20 40 60 80 temp rise( : ) inductance( h) temp rise ( : ) sig4012-1r5 0.0 0.4 0.8 1.2 1.6 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( : ) inductance( h) temp rise ( : ) 4 sig4012-2r2 0.0 0.4 0.8 1.2 1.6 2.0 2.4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( : ) inductance( h) temp rise ( : ) sig4012-3r3 0.0 0.6 1.2 1.8 2.4 3.0 3.6 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( : ) inductance( h) temp rise ( : ) sig4012-4r7 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( : ) inductance( h) temp rise ( : ) sig4012-6r8 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( : ) inductance( h) temp rise ( : ) sig4012-8r2 0.0 2.0 4.0 6.0 8.0 10.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 dc bias(amps) inductance( h) 0 10 20 30 40 50 60 temp rise( : ) inductance( h) temp rise ( : ) sig4012-100 0.0 2.0 4.0 6.0 8.0 10.0 12.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( : ) inductance( h) temp rise ( : )
specification for approval document : sig4012-xxx_070 revision : a5 page : 4 of 11 sig4012-220 0.0 5.0 10.0 15.0 20.0 25.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( ) inductance( h) temp rise ( ) sig4012-330 0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( ) inductance( h) temp rise ( ) SIG4012-470 0.0 10.0 20.0 30.0 40.0 50.0 0.00 0.12 0.24 0.36 0.48 0.60 0.72 0.84 0.96 1.08 dc bias(amps) inductance( h) 0 20 40 60 80 100 temp rise( ) inductance( h) temp rise ( )
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