Low Profile Power Inductors Pb SD3118 Series Applications Cellular phones, Digital cameras, CD players, PDAs Small LCD displays LED driver and LED flash circuits Hard disk drives Backlighting EL panel Environmental Data Storage temperature range: -40C to +125C Operating temperature range: -40C to +125C SMD Device (with derated current) Solder reflow temperature: +260C max. for 10 seconds maximum Description Packaging 125C maximum total temperature operation Supplied in tape and reel packaging, 4100 per reel, 3.2mm x 3.2mm x 1.8mm maximum shielded drum core 13 diameter reel Ferrite core material Inductance range from 1.0H to 1000H Current range from 2.94 Amps to 0.083 Amps Frequency range up to 4MHz RoHS compliant Product Specifications 1 2 3 Part Rated OCL Part Marking I I DCR () 20C rms sat 5 4 Number Inductance (H) (H) Designator (Amps) (Amps) (Typical) K-factor SD3118-1R0-R 1.0 1.0430% A 2.01 3.07 0.041 84 SD3118-1R5-R 1.5 1.4430% B 1.81 2.42 0.051 68 SD3118-2R2-R 2.2 2.1230% C 1.50 2.00 0.074 57 SD3118-3R3-R 3.3 3.3630% D 1.22 1.59 0.113 56 SD3118-4R7-R 4.7 4.9030% E 1.02 1.31 0.162 39 SD3118-6R8-R 6.8 6.7230% F 0.85 1.12 0.232 32 SD3118-8R2-R 8.2 8.1030% G 0.81 1.02 0.257 29 SD3118-100-R 10.0 10.430% H 0.75 0.90 0.295 26 SD3118-150-R 15.0 14.920% I 0.62 0.75 0.440 21 SD3118-220-R 22.0 22.520% J 0.50 0.61 0.676 18 SD3118-330-R 33.0 33.120% K 0.41 0.51 0.986 14 SD3118-470-R 47.0 47.520% L 0.370 0.42 1.21 12 SD3118-221-R 220.0 221.920% M 0.182 0.177 4.77 6 SD3118-331-R 330.0 329.920% N 0.146 0.145 7.40 5 SD3118-471-R 470.0 470.120% O 0.131 0.122 9.20 4 SD3118-681-R 680.0 680.320% P 0.107 0.101 13.70 3 SD3118-102-R 1000.0 999.420% Q 0.087 0.083 20.90 3 1 Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.10V , 0.0Adc 4 K-factor: Used to determine B for core loss (see graph). B = K L I. B (mT), * * rms p-p p-p p-p 2I : DC current for an approximate temperature rise of 40C without core loss. Derating is K: (K-factor from table), L: (inductance in H),I (peak-to-peak ripple current in amps). rms necessary for AC currents. PCB pad layout, trace thickness and width, air-flow and proximity of 5 Part Number Definition:HCF1007-xxx-R other heat generating components will affect the temperature rise. It is recommended the part SD3118 = Product code and size temperature not exceed 125C under worst case operating conditions verified in the end xxx= Inductance value in H, R = decimal point. application. If no R is present then third character = of zeros 3I : Peak current for approximately 30% rolloff at +20C. -R suffix = RoHS compliant sat 1109 BU-SB091064 Page 1 of 3 Data Sheet: 4084DDiimmeennssiioonnss -- mmmm BOTTOM VIEW RECOMMENDED PCB LAYOUT TOP VIEW 2.40 Pin 1 indicator 3.2 max. 1.40 Marking 3.9 max 0.70 XXX 3.2 max. 1.5 typical SCHEMATIC 1 SIDE VIEW 1.8 max 2 3 Digit Part Marking: (1st digit: Indicates inductance value per letter in Part Marking Designator) (2nd digit: Bi-weekly production date code) (3rd digit: Last digit of the year produced). Packaging Information - mm 4.00 1.2 Dia 1.5 Dia. min. +0.1/-0.0 2.00 1.75 A Ao = 4.0mm 1 B1 A1 = 0.93mm 12.0 Bo = 4.20mm 10.25 +/-0.3 Bo B1 = 1.25mm 5.50 Ko = 2.00mm 2 3.4 3.4 Ko A1 A SECTION A-A Ao 8.0 Direction of feed Supplied in tape-and-reel packaging, 4100 parts per reel, 13 diameter reel. Temperature Rise vs. Total Loss 90 80 70 60 50 40 30 20 10 0 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 Total Loss(W) 1109 BU-SB091064 Page 2 of 3 Data Sheet: 4084 Temp.Rise(C)