SMT Power Inductors Shielded Toroid Series - Ros1/Ros2 Series Height: 3.2mm and 5.3mm Max Footprint: 8.1mm x 5.3mm and 14.mm x 10.2mm Current Rating: up to 5A Inductance Range: .51µH to 357µH Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C Pulse Part Number Ros 1 Series Inductance @ Irated (µH MIN) Irated (A) DCR (mΩ) MAX Inductance @ 0ADC (µH +/- 15%) Reference ET (V*µsec) Trise Factor (Ko) Coreloss Factor (K1) ET Factor (K2) TYP P0430NL 0.51 2.00 14 16.1 .7 .8 1.45 1.27E-11 476.2 P0432NL 0.85 1.50 18 20.7 1.1 1.2 1.45 1.27E-11 370.4 P0435NL 2.72 1.00 40 46 3.9 2.3 1.45 1.27E-11 196.1 P0438NL 8.84 0.50 140 161 12.2 4.4 1.45 1.27E-11 111.1 P0439NL 10.79 0.45 155 178 14.7 5.0 1.45 1.27E-11 101.0 P0441NL 25.50 0.29 280 322 33.8 8.4 1.45 1.27E-11 66.7 P0445NL 88 0.16 1065 1225 122 15 1.45 1.27E-11 35.1 P0446NL 127 0.14 1600 1840 179 18 1.45 1.27E-11 29.0 P0450NL 0.51 5.00 8.1 9.3 .65 3 .508 8.87E-11 181.8 P0452NL 1.09 5.00 11.4 13.1 1.5 .5 .508 8.87E-11 113.6 P0453NL 1.53 5.00 13.0 15 2.3 1.0 .508 8.87E-11 90.9 P0454NL 1.78 3.00 15.0 17.3 2.3 7.5 .508 8.87E-11 90.9 P0456NL 4.76 2.00 26.1 30 6.3 13 .508 8.87E-11 56.8 P0460NL 22.95 1.00 90.4 104 34 31 .508 8.87E-11 24.6 P0461NL 39.10 0.90 123.5 142 57.2 39 .508 8.87E-11 18.9 P0462NL 40.80 0.80 240.0 276 62.5 35 .508 8.87E-11 18.2 P0463NL 69.70 0.60 245.2 282 100 55 .508 8.87E-11 14.0 P0465NL 137 0.40 480.9 553 180 78 .508 8.87E-11 10.0 P0466NL 182 0.35 681.7 784 254 87 .508 8.87E-11 8.7 P0467NL 272 0.30 1030.4 1185 422.5 105 .508 8.87E-11 7.0 P0468NL 357 0.25 1200.0 1380 500 130 .508 8.87E-11 6.1 Ros 2 Series USA 858 674 8100 Germany 49 7032 7806 0 1 Singapore 65 6287 8998 pulseelectronics.com Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768 P617.B (02/15) SMT Power Inductors Shielded Toroid Series - Ros1/Ros2 Series Notes: 1. Temperature rise is 55C in typical buck or boost circuits with the rated IDC current and reference ET applied to the inductor. 2. Total loss in the inductor is 80 mW (ROS1) and 280 mW (ROS 2) for 55C temperature rise above ambient. 3. To estimate temperature rise in a given application, you must determine the total losses (copper losses + core losses) and apply the following formula: Temp Rise (C) = (Total Losses (mW) .833 * KO (from table) 4. To determine copper losses, calculate: Copper Loss (mW) = IDC2 x DCR 5. For core loss in mWatts, using frequency f (in Hz) and operating flux density B (in Gauss), calculate: Copper Loss (mW) = K2 * f 1.26 * B 2.11 6. For flux density (B), calculate ET (V-µsec) for the application, and multiply by ET10 factor from the table. Mechanical Schematic PXXXX A G MAX F B E MAX F Suggested Pad Layout C ROS 2 ROS 1 Weight .....................0.29 grams ................... 1.1 grams Tape & Reel ................2000/reel ....................600/reel D PKG A B C D E F G ROS 1 .335 8,51 .225 5,72 .125 3,18 .250 6,35 .100 2,54 .050 1,27 .250 6,35 .545 13,84 .390 9,91 .215 5,46 .440 11,18 .120 3,05 .065 1,65 .440 11,18 ROS 2 2 pulseelectronics.com Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 P617.B (02/15) SMT Power Inductors Shielded Toroid Series - Ros1/Ros2 Series For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Einsteinstrasse 1 D-71083 Herrenberg Germany Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia B402, Shenzhen Academy of Room 2704/2705 135 Joo Seng Road 3F, No. 198 Aerospace TechnolSuper Ocean Finance #03-02 Zhongyuan Road ogy Bldg. Ctr. PM Industrial Bldg. Zhongli City 10th Kejinan Road 2067 Yan An Road Singapore 368363 Taoyuan County 320 High-Tech Zone West Taiwan R. O. C. Nanshan District Shanghai 200336 Tel: 886 3 4356768 Shenzen, PR China China Tel: 65 6287 8998 Fax: 886 3 4356823 (Pulse) Tel: 858 674 8100 Tel: 49 7032 78060 518057 Fax: 65 6287 8998 Fax: 886 3 4356820 (FRE) Fax: 858 674 8262 Fax: 49 7032 7806 135 Tel: 86 755 33966678 Tel: 86 21 62787060 Fax: 86 755 33966700 Fax: 86 2162786973 Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. © Copyright, 2015. Pulse Electronics, Inc. All rights reserved. 3 pulseelectronics.com P617.B (02/15)