Features Applications n Multiple applications: parallel, series, n SEPIC topology dual-inductor and transformer n Power supplies for: n Magnetically shielded, low radiation - Communication equipment - Notebooks, desktop computers, n Inductance range: 0.33 to 4000H servers n Rated current up to 6.19 A - LCDs, flat panels, backlights n RoHS compliant* - Camcorders, HDTVs SRF0703 Series - Dual-Winding Shielded Power Inductors Electrical Specifications 25 C General Specifications 7.6 Test Voltage ..................................0.25 V Parallel RatingMAX. Series Rating (.299) Hi-pot ................500 Vrms, 3 mA, 3 sec. Inductance DCR Inductance DCR Reflow Soldering .. 230 C 50 sec. max. 100 KHz (W) Irms Isat 100 KHz (W) Irms Isat Operating Temperature Bourns Part No. L (H) 20 % Max. (A) (A) L (H) 20 % Max. (A) (A) .................................-40 C to +125 C SRF0703-R33M 0.33 0.0092 6.19 14.4 7.6 1.34 0.04 3.1 7.18 (Temperature rise included) (.299) SRF0703-1R0M 1.0 0.0135 5.25 7.97 3.86 0.072 2.63 3.99 MAX. Storage Temperature ..-40 C to +125 C SRF0703-1R5M 1.5 0.0191 4.64 6.52 5.83 0.11 2.32 3.26 Resistance to Solder Heat SRF0703-2R2M 2.2 0.0217 4.11 5.52 8.13 0.132 2.06 2.76 ...............................+260 C for 10 sec. SRF0703-3R3M 3.3 0.0316 3.31 4.22 13.60 0.182 1.66 2.11 Moisture Sensitivity Level ...................... 1 SRF0703-4R7M 4.7 0.0406 3.09 3.78 17.10 0.242 1.55 1.89 ESD Classification (HBM) .................. N/A SRF0703-6R8M 6.8 0.0658 2.55 3.12 25.50 0.285 1.28 1.56 Materials SRF0703-8R2M 8.2 0.0772 2.19 2.66 34.10 0.306 1.1 1.33 3.4 0.2 SRF0703-100M 10 0.0826 2.08 2.47 39.60 0.342 1.04 1.24 (.134 .008) Core ..............................................Ferrite SRF0703-150M 15 0.119 1.83 2.05 59.60 0.47 0.916 1.03 Wire ........................... Enameled copper SRF0703-220M 22 0.15 1.62 1.67 89.50 0.62 0.811 0.83 Base ................................................LCP 2.9 SRF0703-330M 33 0.24 1.31 1.35 140.50 1.0 0.653 0.68 Adhesive .............................. Epoxy resin TYP. (.114) Terminal ................................... Cu/Ni/Sn SRF0703-470M 47 0.338 1.08 1.14 194.20 1.28 0.542 0.57 4 3 Rated Current SRF0703-680M 68 0.507 0.89 0.96 289.30 1.92 0.444 0.48 ........... Inductance drops 30 % at Isat SRF0703-820M 82 0.61 0.86 0.89 324.70 2.28 0.43 0.44 Temperature Rise .... 40 C at rated Irms SRF0703-101M 100 0.715 0.73 0.79 397.60 2.64 0.367 0.39 2.7 Packaging .....1500 pcs. per 13-inch reel SRF0703-151M 150(.106) 0.986 0.58 0.65 608.20 3.63 0.289 0.32 TYP. SRF0703-221M 220 1.48 0.52 0.53 922.60 5.5 0.26 0.27 How to Order SRF0703-331M 330 2.16 0.42 0.44 1335.00 8.25 0.211 0.22 SRF0703 - 100M SRF0703-471M 470 2.82 0.35 0.37 1859.00 11.22 0.173 0.18 1 2 SRF0703-681M 680 3.96 0.29 0.31 2930.00 16.17 0.143 0.15 Model 1.0 TYP. Value Code (see table) SRF0703-821M 820 5.01 0.27 (.039)0.28 3559.00 20.07 0.134 0.14 SRF0703-102M 1000 6.11 0.26 0.25 4120.00 24.42 0.128 0.13 Product Dimensions 7.6 Recommended Layout MAX. (.299) 0.4 3.0 0.4 3.0 (.016) (.118) (.016) (.118) 7.6 1 2 1 2 (.299) MAX. 7.9 7.9 (.311) (.311) 4 3 4 3 1.4 1.4 (.055) (.055) 3.4 0.2 DUAL INDUCTOR MODE SERIES MODE (.134 .008) 2.9 TYP. (.114) 4 3 2.7 1 2 1 2 1 2 (.106) TYP. WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov N1 N2 N1 N2 N1 N2 1 2 *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. 1.0 TYP. Specifications are subject to change without notice. (.039) Users should verify actual device performance in their specific applications. MM 3 4 3 4 3 4 The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of DIMENSIONS: (INCHES) this document, and at www.bourns.com/docs/legal/disclaimer.pdf. PARALLEL SERIES 0.4 0.4 3.0 3.0 (.016) (.118) (.016) (.118) 1 2 1 2 7.9 7.9 (.311) (.311) 4 3 4 3 1.4 1.4 (.055) (.055) DUAL INDUCTOR MODE SERIES MODE 1 2 1 2 1 2 N1 N2 N1 N2 N1 N2 3 4 3 4 3 4 PARALLEL SERIES 4717.6 MAX. (.299) 7.6 (.299) MAX. 3.4 0.2 (.134 .008) 2.9 TYP. (.114) 4 3 2.7 (.106) TYP. 1 2 1.0 TYP. (.039) 0.4 3.0 0.4 3.0 (.016) (.118) (.016) (.118) 1 2 2 1 7.9 7.9 (.311) (.311) 4 3 4 3 1.4 1.4 (.055) (.055) DUAL INDUCTOR MODE SERIES MODE SRF0703 Series - Dual-Winding Shielded Power Inductors SRF0504 Series - Line Filter Electrical Schematic 1 2 1 2 1 2 N1 N2 N1 N2 N1 N2 3 4 3 4 3 4 PARALLEL SERIES Packaging Specifications 330 2.0 0.5 DIA. 22.4 (12.99) (.079 .020) (.882) 13.0 0.5 21.0 0.8 (.512 .020) (.827 .031) DIA. 50.0 -0 (1.97 -0) 13.0 0.5 DIA. (.512 .020) 18 +0 16.0 (.709 +0) (.630) 16.0 4.0 (.630) (.157) END START NO COMPONENT COMPONENTS NO COMPONENT 200 400 (7.87) (15.75) USER DIRECTION OF FEED MM DIMENSIONS: (INCHES) QTY: 1500 PCS. PER REEL Asia-Pacific: Tel: +886-2 2562-4117 Email: asiacus bourns.com EMEA: Tel: +36 88 885 877 Email: eurocus bourns.com The Americas: Tel: +1-951 781-5500 Email: americus bourns.com www.bourns.com REV. 06/19 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.