LOW PROFILE SELF-LEADED SMT DUAL INDUCTORS Materials meet UL 94V-0 rating Frequency range of up to 1 MHz Can be used as a simple inductor, 1:1 coupled inductor, or 1:1 transformer Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C ID Part Number Hookup IDC (A) P0183 P0182 P0181 P0180 P0183 P0179 P0182 P0178 P0181 P0177 P0180 P0176 P0179 P0178 P0175 P0177 P0174 P0176 P0175 P0174 Series Series Series Series Parallel Series Parallel Series Parallel Series Parallel Series Parallel Parallel Series Parallel Series Parallel Parallel Parallel 0.61 0.74 0.90 1.08 1.22 1.32 1.48 1.56 1.80 1.92 2.16 2.60 2.64 3.12 3.60 3.84 4.15 5.20 7.20 8.30 Reference Values L @ DC LDC (µH) 336.7 245.3 170.3 117.3 84.2 79.0 61.3 56.2 42.6 37.3 29.3 20.0 19.7 14.1 9.6 9.3 7.8 5.0 2.4 2.0 Control Values L W/O DC DCR (MAX) L0 ±20% (mΩ) (µH) 364.0 1295 270.2 897 190.3 603 131.0 424 91.0 324 88.2 265 67.5 224 62.8 181 47.6 151 41.7 119 32.8 106 22.1 76.0 22.1 66.3 15.7 45.3 10.4 43.6 10.4 29.8 8.6 30.3 5.5 19.0 2.6 10.9 2.2 7.6 ET (V-µsec) 92.43 81.70 68.99 57.00 46.22 46.90 40.85 39.46 34.49 32.25 28.50 23.43 23.45 19.73 15.62 16.12 14.61 11.72 7.81 7.31 NOTES: 1. The reference inductance at rated DC current is a typical value. 2. Temperature rise is 50°C in typical buck or boost circuits at 250 KHz and with the reference ET applied to the inductor. 3. Total loss in the inductor is 380 mWatts for a 50°C temperature rise above ambient. 4. To estimate temperature rise in a given application, determine copper and core losses, divide by 380 and multiply by 50. 5. For the copper loss, calculate IDC 2X RN. Calculation Data 100 Gauss 1 Amp DC ET100 H1 (V-µsec) (Orsted) 15.66 70.59 13.50 60.82 11.33 51.05 9.40 42.36 7.83 35.30 7.71 34.75 6.75 30.41 6.51 29.32 5.66 25.52 5.30 23.89 4.70 21.18 3.86 17.38 3.86 17.38 3.25 14.66 2.65 11.95 2.65 11.95 2.41 10.86 1.93 8.69 1.33 5.97 1.20 5.43 6. For core loss, using frequency (f) and operating flux density (B), calculate 6.11 x 10-18 x B2.7 x f2.04. 7. For flux density (B), calculate ET (V-µsec) for the application, divide by ET100 from the table, and multiply by 100. 8. Limit the DC bias (H) to 46 orsteds. Calculate H by multiplying H1 from the table by IDC of the application. 9. The maximum DCR listed is approximately 17% over the nominal DCR. 10. Add suffix "T" to part number for tape and reel package (i.e. P0183T). Schematic Mechanical .500 MAX 12,70 .330 8,38 R 1 2 .500 MAX 12,70 4X P01XX Date Code Country of Origin 4 3 .060 1,52 4X .175 4,45 .410 10,41 1:1 ±1% Weight . . . . . . . . 1.5 grams Tape & Reel . . . . . . 500/reel Tube . . . . . . . . . . . . 40/tube Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 .215 MAX 5,46 .330 8,38 3 2 Suggested Pad Layout .005/0,13 4 SURFACES 4 1 .410 10,41 US 858 674 8100 • UK 44 1483 401 700 • France 33 3 84 35 04 04 • Singapore 65 287 8998 • Taiwan 886 2 2698 0228 • Hong Kong 852 2788 6588 • http://www.pulseeng.com PC500.B (5/02) 24