DR1050 Series Low Profile Power Inductors Description RoHS 2002/95/EC * 125C maximum total temperature operation * Low profile surface mount inductor * 10.3mm x 10.5mm x 5.0mm shielded drum core * Ferrite core material * Inductance range from 0.7H to 1000H * Current range from 13.5 Amps to 0.43 Amps * Frequency range up to 1MHz Applications * Computer, DVD players, and portable power devices * Notebook power, LCD panels * DC-DC converters * Buck, boost, forward, and resonant converters * Noise filtering and filter chokes Environmental Data * Storage temperature range: -40C to +125C * Operating temperature range: -40C to +125C (range is application specific) * Solder reflow temperature: +260C max. for 10 seconds maximum SHIELDED DRUM (DR1050) Part Number DR1050-R80-R DR1050-1R5-R DR1050-2R2-R DR1050-3R3-R DR1050-4R7-R DR1050-6R8-R DR1050-8R2-R DR1050-100-R DR1050-120-R DR1050-150-R DR1050-180-R DR1050-220-R DR1050-270-R DR1050-330-R DR1050-390-R DR1050-470-R DR1050-560-R DR1050-680-R DR1050-820-R DR1050-101-R DR1050-121-R DR1050-151-R DR1050-181-R DR1050-221-R DR1050-271-R DR1050-331-R DR1050-391-R DR1050-471-R DR1050-561-R DR1050-681-R DR1050-821-R DR1050-102-R Rated Inductance (H) 0.8 1.5 2.2 3.3 4.7 6.8 8.2 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1000 OCL (1) H30% Irms(2) Amperes Isat (3) Amperes 0.70 1.37 2.27 3.21 4.43 6.30 8.09 10.1 11.6 14.8 17.5 23.5 26.9 34.3 38.3 47.1 56.7 67.2 84.4 97.5 118.3 149.2 183.7 221.8 263.5 320.6 396.5 480.5 572.6 707.9 818.7 1000.2 9.70 8.60 7.52 6.50 6.13 5.45 5.24 4.80 3.94 3.80 3.39 3.12 2.82 2.56 2.35 2.06 1.96 1.84 1.60 1.52 1.30 1.26 1.18 1.00 0.96 0.83 0.76 0.64 0.62 0.56 0.54 0.43 13.50 10.50 9.25 8.20 6.70 5.80 5.00 4.58 4.10 3.70 3.30 3.00 2.80 2.50 2.35 2.10 1.94 1.70 1.58 1.45 1.30 1.15 1.08 0.98 0.90 0.80 0.72 0.62 0.60 0.55 0.50 0.48 (1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc. (2) Irms: DC current for an approximate T of 40C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 125C under worst case operating conditions verified in the end application. (3) Isat Amperes peak for approximately 35% rolloff (@25C) PM-62 Packaging * Supplied in tape and reel packaging, 500 per reel DCR () m @20C (Typical) 3.2 4.0 5.6 8.0 9.5 13.0 15.1 18.0 24.3 26.0 32.8 38.7 42.6 57.5 60.7 89.0 98.0 111 147 164 223 238 273 377 410 554 648 855 970 1095 1185 1528 DCR () m @20C (Maximum) 4.0 5.0 6.8 10.0 11.9 16.5 19.0 22.5 30.4 32.5 41.0 48.4 53.3 71.9 75.9 111 123 139 184 205 279 298 341 472 513 693 810 1069 1213 1369 1481 1950 K-factor (4) 20.47 14.62 11.37 9.30 7.87 6.82 6.02 5.39 4.87 4.45 4.09 3.53 3.30 2.92 2.77 2.50 2.27 2.09 1.86 1.73 1.57 1.40 1.26 1.15 1.06 0.96 0.86 0.78 0.72 0.64 0.60 0.54 (4) K-factor: Used to determine B p-p for core loss (see graph). B p-p = K*L*I, B p-p(mT), K: (K factor from table), L: (Inductance in H), I (Peak to peak ripple current in Amps). (5) Part Number Definition: DR1050-xxx-R DR1050 = Product code and size; -xxx = Inductance value in uH; R = decimal point; If no R is present, third character = # of zeros. -R suffix = RoHS compliant DR1050 Series Low Profile Power Inductors Mechanical Diagrams TOP VIEW FRONT VIEW BOTTOM VIEW 10.3 max. 3.0 1 RECOMMENDED PCB LAYOUT 3.3 5.0 max. 1.2 SCHEMATI C 1 1.6 XXX wwlly R 10.5 max. LEFT VIEW 7.7 7.3 2 2 Dimensions are in millimeters. xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level. Packaging Information 1.5 dia +0.1/-0.0 4.0 1.5 dia min 2.0 A 1.75 12.0 Bo B1 Ko 24.0 +/-0.3 XX X wwlly R A1 16.0 Ao SECTION A-A User direction of feed Parts packaged on 13" Diameter reel, 500 parts per reel. Core Loss 10 1MHz Core Loss (W) 1 500kHzz300kHzz 200kHzz 100kHzz 0. 1 0. 01 0. 001 0. 0001 1 10 100 1000 Bp-p (mT) PM-63 SHIELDED DRUM (DR1050) Ao=10.8 mm Bo=11.0 mm A1=10.5 mm B1=10.7 mm Ko=5.3 mm A DR1050 Series Low Profile Power Inductors Temperature Rise vs. Loss Temperature Rise vs. Total Loss 160.00 Temperature Rise (C) 140.00 120.00 100.00 80.00 60.00 40.00 20.00 0.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Total Loss (W) Inductance Characteristics OCL vs. ISAT 120.0% 100.0% % of OCL SHIELDED DRUM (DR1050) 80.0% 60.0% 40.0% -40 Deg. C +25 Deg. C +85 Deg. C 20.0% 0.0% 0% 20% 40% 60% 80% % of ISAT PM-64 100% 120% 140%