PL IA NT CO M *R oH S Features Applications Multiple applications: parallel, series, SEPIC topology dual-inductor and transformer Magnetically shielded, low radiation Inductance range: 0.47 to 4000 H Rated current up to 17.6 A RoHS compliant* 220 Power supplies for: - Communication equipment - Notebooks, desktop computers, servers - LCDs, flat panels, backlights - Camcorders, HDTVs, car audio systems SRF1260 Series - Dual-Winding Shielded Power Inductors Electrical Specifications @ 25 C General Specifications Parallel Rating L (H) (%) DCR () Max. 0.47 1.0 1.5 2.2 3.3 4.7 6.8 8.2 10 15 22 33 47 68 82 100 150 220 330 470 680 820 1000 30 30 30 30 30 30 30 30 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 0.0053 0.0062 0.0073 0.0085 0.0101 0.0137 0.0186 0.0194 0.0246 0.0329 0.0451 0.0618 0.086 0.117 0.15 0.171 0.254 0.354 0.574 0.83 1.212 1.46 1.854 Inductance @ 100 KHz Tol. Bourns Part No. SRF1260-R47Y SRF1260-1R0Y SRF1260-1R5Y SRF1260-2R2Y SRF1260-3R3Y SRF1260-4R7Y SRF1260-6R8Y SRF1260-8R2Y SRF1260-100M SRF1260-150M SRF1260-220M SRF1260-330M SRF1260-470M SRF1260-680M SRF1260-820M SRF1260-101M SRF1260-151M SRF1260-221M SRF1260-331M SRF1260-471M SRF1260-681M SRF1260-821M SRF1260-102M Series Rating Irms (A) Isat (A) 17.6 15 13.8 10.9 9.26 7.18 6.64 5.54 5.35 4.27 3.7 3.28 2.71 2.22 2.05 1.78 1.48 1.19 1.06 0.87 0.7 0.6 0.57 33 23.6 18.3 15 12.7 9.71 8.68 7.86 7.17 5.69 4.71 3.84 3.24 2.7 2.39 2.2 1.81 1.51 1.22 1.02 0.85 0.77 0.7 L (H) (%) DCR () Max. 1.88 4 6 8.8 13.2 18.8 27.2 32.8 40 60 88 132 188 272 328 400 600 880 1320 1880 2720 3280 4000 30 30 30 30 30 30 30 30 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 0.0212 0.026 0.0302 0.0333 0.0372 0.0479 0.0672 0.0737 0.0934 0.125 0.172 0.256 0.34 0.444 0.568 0.656 0.972 1.416 2.29 3.197 4.635 5.363 6.782 Inductance @ 100 KHz Tol. Irms (A) Isat (A) 8.8 7.51 6.89 5.46 4.63 3.59 3.32 2.77 2.67 2.13 1.84 1.64 1.35 1.11 1.03 0.892 0.739 0.594 0.53 0.434 0.35 0.301 0.283 16.5 11.8 9.15 7.5 6.35 4.86 4.34 3.93 3.59 2.85 2.36 1.92 1.62 1.35 1.2 1.1 0.905 0.755 0.61 0.51 0.425 0.385 0.35 Test Voltage ..................................0.25 V Hi-pot .................500 Vrms, 3 mA, 3 sec. Reflow Soldering .. 230 C; 50 sec. max. Operating Temperature ................................. -40 C to +125 C (Temperature rise included) Storage Temperature .. -40 C to +125 C Resistance to Solder Heat ...............................+260 C for 10 sec. Materials Core ..............................................Ferrite Wire ............................Enameled copper Base ................................................ LCP Adhesive .............................. Epoxy resin Terminal ..............................................Sn Rated Current ............ Inductance drops 30 % at Isat Temperature Rise .....40 C at rated Irms Packaging ....... 400 pcs. per 13-inch reel How to Order SRF1260 - 100M Model Value Code (see table) Product Dimensions 12.50 MAX. (.492) Electrical Schematic 1 2 N1 1 N2 3 2 N1 4 1 N2 3 2 N1 4 N2 4 3 PARALLEL 12.50 (.492) MAX. 6.00 0.2 (.236 .008) SERIES Recommended Layout 2.50 (.098) REF. 3.85 REF. (.152) 2 1 2.50 (.098) REF. 3.85 REF. (.152) 2 1 13.80 (.543) REF. 13.80 (.543) REF. 3 REF. 4 0.50 (.020) DUAL INDUCTOR MODE 3 REF. 5.00 0.3 (.197 .012) 4 1 2 4 3 7.60 0.2 (.299 .008) 0.50 (.020) 1.80 0.2 (.071 .008) SERIES MODE *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. DIMENSIONS: MM (INCHES) SRF0504 Series- Dual-Winding - Line Filter Shielded Power Inductors SRF1260 Series Packaging Specifications 330 DIA. (12.99) 2.0 0.5 (.079 .020) 21.0 0.8 (.827 .031) 30.4 (1.197) 13.0 0.5 (.512 .020) DIA. 50.0 -0 (1.97 -0) 13.0 0.5 DIA. (.512 .020) 26 +0 (1.024 +0) 24.0 (.945) 16.0 (.630) END 4.0 (.157) NO COMPONENT COMPONENTS START NO COMPONENT 400 (15.75) 200 (7.87) USER DIRECTION OF FEED QTY: 400 PCS. PER REEL DIMENSIONS: MM (INCHES) Asia-Pacific: Tel: +886-2 2562-4117 * Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 * Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 * Fax: +1-951 781-5700 www.bourns.com REV. 05/12 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.