Features Applications Multiple applications: parallel, series, DC/DC converters dual-inductor and transformer Power supplies Magnetically shielded, low radiation SEPIC - DC/DC converters Inductance range: 0.47 to 4000 H Heating current up to 17.6 A AEC-Q200 compliant RoHS compliant* and halogen free** SRF1260A Series - Dual-Winding Shielded Power Inductors Electrical Specifications 25 C General Specifications Operating Temperature Parallel Rating Series Rating ................................. -40 C to +125 C Inductance Inductance (Temperature rise included) 100 KHz/ DCR 100 KHz/ DCR Storage Temperature Bourns 0.25 V Tol. () Irms Isat 0.25 V Tol. () Irms Isat Part No. L (H) (%) Max. (A) (A) L (H) (%) Max. (A) (A) ................................-40 C to +125 C Temperature Rise SRF1260A-R47Y 0.47 30 0.0053 17.6 33 1.88 30 0.0212 8.8 16.5 ......................40 C typ. at rated I rms SRF1260A-1R0Y 1.0 30 0.0062 15 23.6 4 30 0.026 7.51 11.8 Inductance Drop .......... 30 % typ. at I sat SRF1260A-1R5Y 1.5 30 0.0073 13.8 18.3 6 30 0.0302 6.89 9.15 Hi-pot (N1-N2) ................500 Vac/60 Hz, SRF1260A-2R2Y 2.2 30 0.0085 10.9 15 8.8 30 0.0333 5.46 7.5 3 mA, 1 sec SRF1260A-3R3Y 3.3 30 0.0101 9.26 12.7 13.2 30 0.0372 4.63 6.35 Moisture Sensitivity Level ..................... 1 SRF1260A-4R7Y 4.7 30 0.0137 7.18 9.71 18.8 30 0.0479 3.59 4.86 ESD Classification (HBM)................. N/A SRF1260A-6R8Y 6.8 30 0.0186 6.64 8.68 27.2 30 0.0672 3.32 4.34 SRF1260A-8R2Y 8.2 30 0.0194 5.54 7.86 32.8 30 0.0737 2.77 3.93 Materials SRF1260A-100M 10 20 0.0246 5.35 7.17 40 20 0.0934 2.67 3.59 Core ..............................................Ferrite SRF1260A-150M 15 20 0.0329 4.27 5.69 60 20 0.125 2.13 2.85 Wire ............................Enameled copper SRF1260A-220M Terminal Finish ...................................Sn 22 20 0.0451 3.7 4.71 88 20 0.172 1.84 2.36 Packaging .................... 400 pcs. per reel SRF1260A-330M 33 20 0.0618 3.28 3.84 132 20 0.256 1.64 1.92 SRF1260A-470M 47 20 0.086 2.71 3.24 188 20 0.34 1.35 1.62 Product Dimensions SRF1260A-680M 68 20 0.117 2.22 2.7 272 20 0.444 1.11 1.35 SRF1260A-820M 82 20 0.15 2.05 2.39 328 20 0.568 1.03 1.2 12.50 SRF1260A-101M 100 20 0.171 1.78 2.2 400 20 0.656 0.892 1.1 MAX. (.492) SRF1260A-151M 150 20 0.254 1.48 1.81 600 20 0.972 0.739 0.905 DOT INDICATES SRF1260A-221M 220 20 0.354 1.19 1.51 880 20 1.416 0.594 0.755 TERMINAL 1 SRF1260A-331M 330 20 0.574 1.06 1.22 1320 20 2.29 0.53 0.61 SRF1260A-471M 470 20 0.83 0.87 1.02 1880 20 3.197 0.434 0.51 12.50 (.492) SRF1260A-681M 680 20 1.212 0.7 0.85 2720 20 4.635 0.35 0.425 MAX. SRF1260A-821M 820 20 1.46 0.6 0.77 3280 20 5.363 0.301 0.385 SRF1260A-102M 1000 20 1.854 0.57 0.7 4000 20 6.782 0.283 0.35 Electrical Schematics 6.00 0.2 (.236 .008) 1 2 1 2 1 2 5.00 0.3 N1 N2 N1 N2 N1 N2 (.197 .012) 4 3 5.00 0.3 (.197 .012) 3 4 3 4 3 4 PARALLEL SERIES Recommended Layout 4.50 4.50 1 2 2.15 2.15 1.80 0.2 (.177) (.177) (.085) (.085) (.071 .008) 1 2 1 2 MM MM DIMENSIONS: DIMENSIONS: (INCHES) (INCHES) 13.00 13.00 (.512) (.512) 43 4 3 WARNING 1.28 1.28 Cancer and Reproductive Harm (.050) (.050) www.P65Warnings.ca.gov DUAL INDUCTOR MODE SERIES MODE * RoHS Directive 2015/863, Mar 31, 2015 and Annex. ** Bourns considers a product to be halogen free if (a) the Bromine (Br) content is 900 ppm or less (b) Specications are subject to change without notice. Users should verify actual device performance in their specic the Chlorine (Cl) content is 900 ppm or less and (c) applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the the total Bromine (Br) and Chlorine (Cl) content is last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 1500 ppm or less. 220 *RoHS COMPLIANT, **HALOGEN FREE & AEC COMPLIANTSRF1260A Series - Dual-Winding Shielded Power Inductors Soldering Profile How to Order SRF1260A - 100M Peak Temperature 245 max. Max. Peak Temperature -5 30 sec. max. Model Max. Time Above 217 : 60~150 sec. max. Value Code (see table) Temperature Preheat Reflow Forced Rising Area Area Area Cooling Area +4.0 C/Sec. Max. 150~200 C / 60~120 Sec. +3.0 C/Sec. Max. -(1.0~5.0) C/Sec. Max. Peak Temperature: 245 C 250 217 C 60~150 Sec. 200 60 Sec. Max. 150 60~120 Sec. 100 50 0 50 100 150 200 250 Time (Seconds) Packaging Specifications 330 2.0 0.5 DIA. 30.4 (12.99) (.079 .020) (1.197) 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) 26 +0 24.0 (1.024 +0) (.945) 16.0 4.0 (.630) (.157) END START NO COMPONENT COMPONENTS NO COMPONENT 400 400 (15.75) (15.75) USER DIRECTION OF FEED MM DIMENSIONS: (INCHES) QTY: 400 PCS. PER REEL REV. 11/19 Specications are subject to change without notice. Users should verify actual device performance in their specic applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Temperature (C)