VLF4012ST-100MR65

(1/2) SMD Inductors(Coils) For Power Line(Wound, Magnetic Shielded) Conformity to RoHS Directive VLF Series VLF4012S 3.6±0.2 SHAPES AND DIMENSIONS 4R7 3.8±0.2 1.2max. Dimensions in mm RECOMMENDED PC BOARD PATTERN 1.3 FEATURES • Miniature size Mount area: 3.6× 3.8mm Height: 1.2mm max. • 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. 2.9 APPLICATIONS DVCs, DSCs, PDAs, LCD displays, cellular phones, HDDs, etc. 4.7 Dimensions in mm ELECTRICAL CHARACTERISTICS Part No. Inductance (µH) Inductance tolerance(%) Test frequency (MHz) VLF4012ST-1R0N1R9 VLF4012ST-2R2M1R3 VLF4012ST-3R3M1R1 VLF4012ST-4R7M1R0 VLF4012ST-6R8MR80 VLF4012ST-100MR65 1 2.2 3.3 4.7 6.8 10 ±30 ±20 ±20 ±20 ±20 ±20 1 1 1 1 1 1 DC resistance(Ω) max. typ. 0.054 0.12 0.16 0.19 0.32 0.49 0.045 0.097 0.13 0.16 0.27 0.41 Rated current(A)∗ Based on inductance change max. 2.7 1.7 1.5 1.4 1 0.9 Based on temperature rise typ. 1.9 1.3 1.1 1 0.8 0.65 ∗ Rated current: Value obtained when current flows and the temperature has risen to 40°C or when DC current flows and the nominal value of inductance has fallen by 30%, whichever is smaller. • Operating temperature range: –40 to +105°C (Including self-temperature rise) VLF4012ST-2R2M1R3 1.2 2.5 1.0 2.0 Inductance(µH) Inductance(µH) TYPICAL ELECTRICAL CHARACTERISTICS INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF4012ST-1R0N1R9 0.8 0.6 0.4 1.0 0.5 0.2 0.0 0.0 1.5 0.5 1.0 1.5 2.0 DC current (A) 2.5 3.0 3.5 0.0 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 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. 001-01 / 20070911 / e531_vlf4012s.fm (2/2) VLF4012ST-4R7M1R0 4.0 6 3.5 5 3.0 Inductance(µH) Inductance(µH) TYPICAL ELECTRICAL CHARACTERISTICS INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF4012ST-3R3M1R1 2.5 2.0 1.5 1.0 3 2 1 0.5 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 DC current (A) 1.4 1.6 0 0.0 1.8 VLF4012ST-6R8MR80 0.2 0.4 0.6 0.8 1.0 DC current (A) 1.2 1.4 1.6 VLF4012ST-100MR65 12 8 10 Inductance(µH) 7 Inductance(µH) 4 6 5 4 3 2 8 6 4 2 1 0 0.0 0.2 0.4 0.6 0.8 DC current (A) 1.0 1.2 1.4 0 0.0 0.2 0.4 0.6 0.8 DC current (A) 1.0 1.2 TEST CIRCUIT C=20,000µF A 2 L=0.1H Sample 1 1: LCR meter 4285A f=1MHz 2: DC constant current • All specifications are subject to change without notice. 001-01 / 20070911 / e531_vlf4012s.fm