(1/2) 001-03 / 20050904 / e531_vlf3012a.fm Inductors VLF Series VLF3012A Type For Power Line SMD 2.60.2 SHAPES AND DIMENSIONS 4R7 2.80.2 1.2max. (Include terminal area) Dimensions in mm RECOMMENDED PC BOARD PATTERN 1.2 FEATURES * Miniature size Mount area: 2.6x2.8mm 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. 2.1 3.4 APPLICATIONS DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc. Dimensions in mm ELECTRICAL CHARACTERISTICS DC resistance() Rated current(A) Based on inductance Based on temperature max. typ. change max. rise typ. VLF3012AT-1R5N1R2 1.5 30 100 0.068 0.059 1.2 1.6 VLF3012AT-2R2M1R0 2.2 20 100 0.1 0.088 1.0 1.3 VLF3012AT-3R3MR87 3.3 20 100 0.13 0.11 0.87 1.2 VLF3012AT-4R7MR74 4.7 20 100 0.19 0.16 0.74 0.98 VLF3012AT-6R8MR59 6.8 20 100 0.27 0.23 0.59 0.83 VLF3012AT-100MR49 10 20 100 0.41 0.36 0.49 0.67 VLF3012AT-150MR41 15 20 100 0.62 0.54 0.41 0.54 VLF3012AT-220MR33 22 20 100 0.76 0.66 0.33 0.49 VLF3012AT-330MR27 33 20 100 1.3 1.1 0.27 0.38 VLF3012AT-470MR22 47 20 100 2.2 1.9 0.22 0.29 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) Inductance (H) Part No. Inductance tolerance(%) Test frequency (kHz) TYPICAL ELECTRICAL CHARACTERISTICS INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF3012AT-1R5N1R2 VLF3012AT-2R2M1R0 3.0 2.5 2.0 Inductance(H) Inductance(H) 2.5 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 DC current (A) 1.0 1.2 1.4 * All specifications are subject to change without notice. 0.0 0.0 0.2 0.4 0.6 0.8 DC current (A) 1.0 1.2 1.4 (2/2) 001-03 / 20050904 / e531_vlf3012a.fm Inductors VLF Series VLF3012A Type For Power Line SMD VLF3012AT-4R7MR74 5 8 4 6 Inductance(H) Inductance(H) TYPICAL ELECTRICAL CHARACTERISTICS INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF3012AT-3R3MR87 3 2 1 0 0.0 0.2 0.4 0.6 0.8 DC current (A) 1.0 0.2 0.4 0.6 DC current (A) 0.8 1.0 VLF3012AT-100MR49 15 10 8 Inductance(H) Inductance(H) 2 0 0.0 1.2 VLF3012AT-6R8MR59 4 10 6 4 5 2 0 0.0 0.1 0.2 0.3 0.4 0.5 DC current (A) 0.6 0.7 0 0.0 0.8 VLF3012AT-150MR41 15 Inductance(H) Inductance(H) 0.3 0.4 DC current (A) 0.5 0.6 30 10 5 0 0.0 0.1 0.2 0.3 0.4 DC current (A) 0.5 20 10 0 0.0 0.6 VLF3012AT-330MR27 0.1 0.2 DC current (A) 0.3 0.4 VLF3012AT-470MR22 60 50 50 40 Inductance(H) Inductance(H) 0.2 VLF3012AT-220MR33 20 30 20 10 40 30 20 10 0 0.0 0.1 0.2 DC current (A) 0.3 0.4 TEST CIRCUIT C=20,000F A 0.1 L=0.1H 2 1 Sample 1: LCR meter 4285A=100kHz 2: DC constant current * All specifications are subject to change without notice. 0 0.00 0.05 0.10 0.15 0.20 DC current (A) 0.25 0.30