SDH2812-470-R Eaton

HALOGEN Low Profile, High Power, Shielded Drum Inductors HF Pb SDH2812 Series FREE Applications Buck or boost inductor Cellular phones/ PDAs LED Photo flash LCD Displays Handheld/Mobile devices GPS Systems Digital cameras MP3 Players SMD Device Environmental Data Description Storage temperature range: -40C to +125C Halogen Free Operating temperature range: -40C to +125C 125C maximum total temperature operation (ambient plus self-temperature rise) 3.2 x 3.0 x 1.2mm maximum shielded drum core Solder reflow temperature: J-STD-020D compliant Ferrite core material Packaging High power density, ultra-compact footprint Supplied in tape and reel packaging, 4,500 parts per reel Inductance range from 1.02H to 97.7H 13 diameter reel Current range from 0.217 to 1.95 Amps Magnetically shielded, low EMI RoHS compliant Product Specifications 1 2 3 Part OCL Part Marking I I 25C DCR () 20C DCR () 20C rms sat 5 4 Number (H) Designator (Amps) (Amps) (Typical) (Maximum) K-factor SDH2812-1R0-R 1.0230% O 1.45 1.95 0.062 0.083 1212 SDH2812-1R5-R 1.5030% A 1.33 1.71 0.082 0.102 1070 SDH2812-2R2-R 2.2020% B 1.26 1.53 0.095 0.114 866 SDH2812-3R3-R 3.2020% C 1.08 1.16 0.138 0.154 673 SDH2812-4R7-R 4.2020% D 0.900 1.000 0.200 0.224 587 SDH2812-6R8-R 6.6020% E 0.730 0.830 0.270 0.336 466 SDH2812-8R2-R 8.1720% F 0.660 0.780 0.380 0.417 404 SDH2812-100-R 9.6720% G 0.620 0.710 0.389 0.467 387 SDH2812-150-R 14.720% H 0.500 0.570 0.620 0.721 308 SDH2812-220-R 21.620% I 0.440 0.460 0.870 0.922 264 SDH2812-330-R 33.220% J 0.350 0.380 1.37 1.43 209 SDH2812-470-R 46.720% K 0.300 0.320 1.72 1.99 173 SDH2812-680-R 68.020% L 0.270 0.270 2.46 2.70 148 SDH2812-820-R 82.220% M 0.230 0.240 3.15 3.47 135 SDH2812-101-R 97.720% N 0.217 0.218 3.61 3.97 122 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 (Gauss), * * 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: SDH2812-xxx-R other heat generating components will affect the temperature rise. It is recommended the part SDH2812 = 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, rd application. If no R is present then 3 digit equals number of zeros. 3I : Peak current for approximately 30% rolloff at +25C. -R suffix = RoHS compliant sat 1209 BU-SB091134 Page 1 of 4 Data Sheet: 4354Dimensions - mm Schematic Bottom View Top View Side View Recom m ended Pad Layout 1.54 1.60 1.2 M ax. Typ. 1.54 1 0.2 2.0 2.8 (2Plcs) 0.2 2 1.54 0.2 1.0 0.73 (2plcs) 0.2 3.0 0.2 Two-digit (2) Part Marking: st 1 Digit indicates inductance value per Part Marking Designator column in Product Specifications table nd 2 Digit indicates bi-weekly production date code Packaging Information - mm 1.5 dia. 2.0 A 4.0 5.5 1 12.00.30 X X 10.2 2 3.30 1.30 A BB 8.0 1.2 dia. A-A View 3.10 Direction of feed B-B View Supplied in tape-and-reel packaging, 4,500 parts per reel, 13 diameter reel. Temperature Rise vs. Total Loss 50 40 30 20 10 0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 Total Loss (W) 1209 BU-SB091134 Page 2 of 4 Data Sheet: 4354 1 X X Temperature Rise (C) 2 2 1