SELF-LEADED SURFACE MOUNT INDUCTORS Materials meet UL 94-VO rating Fits in half inch high boards for use in laptop and notebook computers Frequency range of up to 1 MHz Patented, low profile, self-leaded design Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C Part Number IDC (amp ) Reference Values L @ DC LDC (µH) P0144 P0145 P0146 P0147 P0148 P0149 P0150 P0151 P0152 P0153 3.80 3.13 2.43 1.65 1.35 1.23 0.99 0.81 0.65 0.53 9.4 13.3 23 50 75 90 137 200 305 439 ET (V-µsec) 15.2 18.8 24.3 37.0 44.3 49.2 59.4 71.3 85.8 99.6 Control Values L W/O DC DCR (nom) L0 ±20% RN +15% MAX (µH) (mΩ) 10.4 14.6 25 56 83 100 152 220 331 472 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 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 ET100 (V-µsec) 1 Amp DC H1 (Orsted) 2.65 3.13 4.10 6.15 7.47 8.19 10.12 12.17 14.94 17.83 11.95 14.12 18.46 27.69 33.67 36.93 45.61 54.85 67.34 80.37 27 40 65 121 181 246 387 585 845 1322 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. Schematic Mechanical 2X .060 1,52 1 .500 MAX 12,70 .470 11,94 2 .400 10,16 R Suggested Pad Layout Dimensions: Inches mm .215 MAX 5,46 .390 9,91 .500 MAX 12,70 Unless otherwise specified all tolerances are ± .010 0,25 .005/0,13 4 SURFACES 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 21 PC500.B (5/02)