4R7 (1/2) Conformity to RoHS Directive SMD Inductors(Coils) For Power Line(Wound, Magnetic Shielded) VLF Series VLF5012A FEATURES SHAPES AND DIMENSIONS Miniature size Mount area: 4.5 4.7mm Low profile: 1.2mm max. height Generic use for portable DC to DC converter line. 4.70.3 1.2max. High magnetic shield construction should actualize high resolu- tion for EMC protection. Dimensions in mm Available for automatic mounting in tape and real package. The products contain no lead and also support lead-free RECOMMENDED PC BOARD PATTERN soldering. It is a product conforming to RoHS directive. 3.9 5.7 APPLICATIONS Dimensions in mm Power souce inductor for mobile devices such as mobile phones, HDDs, and DSCs ELECTRICAL CHARACTERISTICS 1 DC resistance( ) Rated current (A) Inductance Inductance Test frequency 2 Part No. at 1/2 Idc1 Based on inductance Based on temperature tolerance(%) (kHz) max. typ. (H) change Idc1 max. rise Idc2 typ. VLF5012AT-2R2M1R5 2.2 20 100 0.11 0.09 2.3 1.5 VLF5012AT-3R3M1R3 3.3 20 100 0.14 0.12 1.7 1.3 VLF5012AT-4R7M1R2 4.7 20 100 0.16 0.14 1.5 1.2 VLF5012AT-6R8M1R0 6.8 20 100 0.2 0.17 1.2 1 VLF5012AT-100MR80 10 20 100 0.35 0.3 1 0.8 1 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. 2 Inductance is at 1/2 Idc1 power distribution. The L vaule at 0A is higher than the guaranteed performance. Operating temperature range: 40 to +105C (Including self-temperature rise) TYPICAL ELECTRICAL CHARACTERISTICS INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF5012AT-2R2M1R5 VLF5012AT-3R3M1R3 2.5 5.0 4.0 2.0 3.0 1.5 2.0 1.0 1.0 0.5 0.0 0.0 0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 ( ) ( ) DC current mA DC current mA 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. All specifications are subject to change without notice. 002-04 / 20080821 / e531 vlf5012a.fm ( ) Inductance H ( ) Inductance H 4.50.3 1.6(2/2) TYPICAL ELECTRICAL CHARACTERISTICS INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF5012AT-4R7M1R2 VLF5012AT-6R8M1R0 8.0 5.0 7.0 4.0 6.0 5.0 3.0 4.0 2.0 3.0 2.0 1.0 1.0 0.0 0.0 0 500 1000 1500 2000 2500 0 200 400 600 800 1000 1200 1400 1600 ( ) ( ) DC current mA DC current mA VLF5012AT-100MR80 12 10 8 6 4 2 0 0 200 400 600 800 1000 1200 1400 ( ) DC current mA TEST CIRCUIT C=20,000F A L=0.1H 2 1 Sample 1: LCR meter 4285A f=100kHz 2: DC constant current All specifications are subject to change without notice. 002-04 / 20080821 / e531 vlf5012a.fm ( ) Inductance(H) Inductance H Inductance(H)