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| (1/2) SMD Inductors(Coils) For Power Line(Wound, Magnetic Shielded) VLF Series VLF4012A FEATURES * Miniature size Mount area: 3.5x 3.7mm Low profile: 1.2mm max. height * Generic use for portable DC to DC converter line * High magnetic shield construction should actualize high resolution for EMC protection. * Available for automatic mounting in tape and real package. * The products do not contain lead and support lead-free soldering. APPLICATIONS DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc. ELECTRICAL CHARACTERISTICS Part No. VLF4012AT-1R5M1R6 VLF4012AT-2R2M1R5 VLF4012AT-3R3M1R3 VLF4012AT-4R7M1R1 VLF4012AT-6R8MR96 VLF4012AT-100MR79 VLF4012AT-150MR63 VLF4012AT-220MR51 VLF4012AT-330MR39 VLF4012AT-470MR30 Conformity to RoHS Directive SHAPES AND DIMENSIONS 3.50.3 4R7 3.70.3 1.2max. (Include terminal area) Dimensions in mm RECOMMENDED PC BOARD PATTERN 1.3 2.9 4.7 Dimensions in mm Inductance (H) 1.5 2.2 3.3 4.7 6.8 10 15 22 33 47 Inductance tolerance(%) 20 20 20 20 20 20 20 20 20 20 Test frequency (kHz) 100 100 100 100 100 100 100 100 100 100 DC resistance() max. 0.079 0.087 0.12 0.16 0.23 0.35 0.53 0.82 1.4 2.3 typ. 0.069 0.076 0.1 0.14 0.2 0.3 0.46 0.71 1.2 2.0 Rated current(A) Based on inductance change max. 1.8 1.5 1.3 1.1 0.96 0.80 0.63 0.52 0.44 0.36 Based on temperature rise typ. 1.6 1.5 1.3 1.1 0.97 0.79 0.64 0.51 0.39 0.30 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 VLF4012AT-1R5M1R6 2.0 Inductance(H) VLF4012AT-2R2M1R5 3.0 2.5 Inductance(H) 1.5 1.0 0.5 0.0 0.0 2.0 1.5 1.0 0.5 0.2 0.4 0.6 0.8 1.0 1.2 DC current (A) 1.4 1.6 1.8 2.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 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. * All specifications are subject to change without notice. 001-04 / 20060612 / e531_vlf4012a.fm (2/2) TYPICAL ELECTRICAL CHARACTERISTICS INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF4012AT-3R3M1R3 4.0 Inductance(H) VLF4012AT-4R7M1R1 6.0 5.0 Inductance(H) 3.0 2.0 1.0 0.0 0.0 4.0 3.0 2.0 1.0 0.2 0.4 0.6 0.8 1.0 1.2 DC current (A) 1.4 1.6 1.8 0.0 0.0 0.2 0.4 0.6 0.8 1.0 DC current (A) 1.2 1.4 1.6 VLF4012AT-6R8MR96 8.0 Inductance(H) 6.0 4.0 2.0 0.0 0.0 VLF4012AT-100MR79 12 10 Inductance(H) 8 6 4 2 0.2 0.4 0.6 0.8 DC current (A) 1.0 1.2 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 DC current (A) 0.7 0.8 0.9 1.0 VLF4012AT-150MR63 20 Inductance(H) 15 10 5 0 0.0 VLF4012AT-220MR51 30 25 Inductance(H) 20 15 10 5 0.1 0.2 0.3 0.4 0.5 DC current (A) 0.6 0.7 0.8 0 0.0 0.1 0.2 0.3 0.4 DC current (A) 0.5 0.6 0.7 VLF4012AT-330MR39 50 Inductance(H) VLF4012AT-470MR30 60 50 Inductance(H) 40 30 20 10 40 30 20 10 0 0.0 0.1 0.2 0.3 0.4 DC current (A) 0.5 0.6 0 0.0 0.1 0.2 0.3 DC current (A) 0.4 0.5 TEST CIRCUIT C=20,000F A 2 Sample 1: LCR meter 4285A=100kHz 2: DC constant current L=0.1H 1 * All specifications are subject to change without notice. 001-04 / 20060612 / e531_vlf4012a.fm |
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