Effective September 2015 Technical Data 4084 Supersedes November 2009 SD3118 Low profile power inductors Applications Mobile/smart phones Tablets/e-readers Media players Digital cameras Small LED driver and LCD displays Handheld/mobile equipment Environmental Data Storage temperature range (Component): -40C to +125C Operating temperature range: -40C to +125C (ambient + self-temperature rise) Description Solder reflow temperature: J-STD-020D compliant Low profile shielded drum core Compact footprint utilizes less board space HALOGEN Inductance Range from 1.0H to 1,000H HF Pb FREE Current range from 0.083 to 2.94 amps 3.2 x 3.2mm footprint surface mount package in a 1.8mm height Ferrite core material Halogen free, lead free, RoHS compliantSD3118 Technical Data 4084 Effective September 2015 Low profile power inductors Product Specifications 1 2 3 OCL Part marking I I DCR ( ) typical rms sat 6 4 Part Number (H) designator (amps) (amps) +20C K-factor SD3118-1R0-R 1.0430% A 2.01 3.07 0.041 84 SD3118-1R5-R 1.4430% B 1.81 2.42 0.051 68 SD3118-2R2-R 2.1230% C 1.50 2.00 0.074 57 SD3118-3R3-R 3.3630% D 1.22 1.59 0.11 56 SD3118-4R7-R 4.9030% E 1.02 1.31 0.16 39 SD3118-6R8-R 6.7230% F 0.85 1.12 0.23 32 SD3118- 8R2-R 8.1030% G 0.81 1.02 0.26 29 SD3118- 100-R 10.430% H 0.75 0.90 0.30 26 SD3118-150-R 14.930% I 0.62 0.75 0.44 21 SD3118-220-R 22.530% J 0.50 0.61 0.68 18 SD3118-330-R 33.130% K 0.41 0.51 0.99 14 SD3118-470-R 47.530% L 0.37 0.42 1.2 12 SD3118-221-R 22220% M 0.182 0.177 4.8 6 SD3118-331-R 33020% N 0.146 0.145 7.4 5 SD3118-471-R 47020% O 0.130 0.122 9.2 4 SD3118-681-R 68020% P 0.107 0.101 14 3 SD3118-102-R 99920% Q 0.087 0.083 21 3 1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.1Vrms, 0.0Adc, +25C 3. I : Peak current for approximately 30% rolloff +20C sat 2. I : DC current for an approximate temperature rise of 40C without core loss. Derating is necessary for AC currents. 4. K-factor: Used to determine B for core loss (see graph). Bp-p = K * L * I. B : (mTesla), K: (K-factor from table), rms p-p p-p PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the L: (Inductance in H), I (Peak to peak ripple current in Amps). temperature rise. It is recommended that the temperature of the part not exceed 125C under worst case operating 5. Part Number Definition: SD3118-xxx-R conditions verified in the end application. SD3118 = Product code and size xxx= Inductance value in uH, R= decimal point, if no R is present then last character equals number of zeros -R suffix = RoHS compliant Dimensions (mm) Pin 1 indicator 1.8 3.9 max Recommended Pad Layout Schematic max 1.5 typ 2.40 1 1.70 2 0.8 3.2 max 3.2 max Part marking: dot for pin 1 indicator (orientation purposes only) xxx = 3 digit marking (first digit indicates inductance value per letter in Part marking designator, second digit is bi-weekly date code, third digit is last digit of year produced) All soldering surfaces to be coplanar within 0.10 millimeters PCB tolerances are 0.1 millimeters unless stated otherwise Do not route traces or vias underneath the inductor www.eaton.com/elx 2