SRF1280-8R2Y

7.6 MAX. (.299) Features Applications n Multiple applications: parallel, series, n SEPIC topology dual-inductor and transformer n Magnetically shielded, low radiation 7.6 n Inductance range: 0.47 to 4000 μH (.299) MAX. current up to 17.9 A n Rated n RoHS compliant* 101 n Power supplies for: - Communication equipment - Notebooks, desktop computers, servers - LCDs, flat panels, backlights - Camcorders, HDTVs SRF1280 Series - Dual-Winding Shielded Power Inductors 3.4 ± 0.2 (.134 ± .008) Electrical Specifications @ 25 °C Additional Information Parallel Rating 4 Inductance @ 100 KHz Bourns Part No. DCR (W) Max. Tol. (%) L (mH) 3 2.9 TYP. (.114) Irms (A) Inductance @ 100 KHz Isat (A) DCR (W) Max. Tol. (%) L (mH) SRF1280-R47Y 0.47 2.7 ±30 0.0055 17.9 56 1.88 ±30 0.0216 (.106) SRF1280-1R0Y 1.0 TYP.±30 0.0067 15.5 40 4 ±30 0.026 SRF1280-1R5Y 1.5 ±30 0.0076 13.5 31.1 6 ±30 0.0306 SRF1280-2R2Y 2.2 ±30 0.0092 12.5 25.5 8.8 ±30 0.0338 SRF1280-3R3Y 3.3 ±30 0.011 10.4 13.2 ±30 0.04 1 2 1.021.5 TYP. SRF1280-4R7Y 4.7 ±30 0.0135 8.25(.039) 16.5 18.8 ±30 0.05 SRF1280-6R8Y 6.8 ±30 0.0183 7.34 13.3 27.2 ±30 0.0656 SRF1280-8R2Y 8.2 ±30 0.0191 6.32 12.2 32.8 ±30 0.0714 SRF1280-100M 10 ±20 0.0241 6.04 11.2 40 ±20 0.0921 SRF1280-150M 15 ±20 0.0333 5.03 9.66 60 ±20 0.129 0.4 0.4 3.0 12.50 3.0 SRF1280-220M (.016) 22 ±20 0.0503 4 MAX. 7.57 88 ±20 (.118) 0.192 (.016) (.118) (.492) SRF1280-330M 33 ±20 0.0664 3.23 6.22 132 ±20 0.265 DOT20.0898 2.95 5.28 2±20 0.353 147 1 SRF1280-470M ±20 188 INDICATES SRF1280-680M 68 ±20 0.123 2.44 4.44 272 ±20 0.469 TERMINAL 1 7.9 7.9 12.50 SRF1280-820M 82 ±20 0.153 328 ±20 (.311) 0.578 (.311) 2.09 4.06 (.492) SRF1280-101M 100 ±20 0.175 1.96 3.64 400 ±20 0.701 MAX. 4150 4 3±20 1.013 SRF1280-151M ±20 30.261 1.59 3.01 600 SRF1280-221M1.4 220 ±20 0.343 1.29 1.42.43 880 ±20 1.38 (.055) SRF1280-331M 330 ±20 0.54 1.04(.055) 2.01 1320 ±20 2.172 DUAL SRF1280-471M 470 INDUCTOR ±20 MODE 0.865 0.85 1.68 SERIES 1880 MODE±20 3.3 SRF1280-681M 680 ±20 1.296 0.76 1.39 2720 ±20 4.888 8.00 MAX. (.315) ±20 5.896 SRF1280-821M 820 ±20 1.632 0.65 1.27 3280 SRF1280-102M 1000 ±20 1.992 0.61 1.14 4000 ±20 7.202 Electrical Schematic 1 2 N1 5.00 ± 0.3 1 (.197 ± .012) N2 3 4 3 4 1 2 8.94 7.74 6.77 6.23 5.23 4.13 3.67 3.16 3.02 2.51 2 1.61 1.47 1.22 1.04 0.98 0.796 0.645 0.522 0.427 0.38 0.325 0.307 1 N2 3 Irms (A) Isat (A) 28 20 15.6 12.7 10.8 8.24 6.67 6.09 5.6 4.83 3.78 3.11 2.64 2.22 2.03 1.82 1.51 1.22 1.01 0.838 0.697 0.633 0.571 PRODUCT TECHNICAL INVENTORY SAMPLES LIBRARY CONTACT General Specifications Test Voltage...................................0.25 V Hi-pot..................500 Vrms, 3 mA, 3 sec. Operating Temperature .................................. -40 °C to +125 °C (Temperature rise included) Storage Temperature... -40 °C to +125 °C Moisture Sensitivity Level....................... 1 ESD Classification (HBM)................... N/A Product Dimensions 12.50 MAX. (.492) DOT INDICATES TERMINAL 1 12.50 (.492) MAX. 5.00 ± 0.3 (.197 ± .012) 2 N1 Click these links for more information: Series Rating N1 4 ± 0.2 1.80 (.071 ± .008) 8.00 MAX. (.315) 2 N2 5.00 ± 0.3 (.197 ± .012) 4 3 PARALLEL 4 3 1 2 5.00 ± 0.3 (.197 ± .012) SERIES Recommended Layout 4.50 (.177) 2.15 (.085) 1 1 2 4.50 (.177) 2.15 (.085) 2 4 3 1.28 (.050) DUAL INDUCTOR MODE WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov DIMENSIONS: 13.00 (.512) 13.00 (.512) 4 3 1.28 (.050) 4.50 (.177) 2.15 (.085) 1 SERIES MODE 1.80 ± 0.2 (.071 ± .008) MM (INCHES) 1 2 4.50 (.177) 2.15 (.085) 2 13.00 (.512) 13.00 (.512) *RoHS Directive 2015/863, Mar 31, 2015 and Annex. 4 4 3 3 Specifications are subject to change without notice. Users should verify actual device performance in their specific 1.28 1.28 applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the (.050) (.050) last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. DUAL INDUCTOR MODE SERIES MODE  SRF1280 Series - Dual-Winding Shielded Power Inductors Materials How to Order 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 SRF1280 - 100M Model Value Code (see table) 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 DIA. (.512) 24.0 (.945) 26 +0 (1.024 +0) 16.0 (.630) END NO COMPONENT 200 (7.87) 4.0 (.157) COMPONENTS START NO COMPONENT 400 (15.75) USER DIRECTION OF FEED QTY: 400 PCS. PER REEL DIMENSIONS: MM (INCHES) 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. 04/21 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. Legal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and P[ZHɉSPH[LZJVSSLJ[P]LS`¸)V\YUZ¹ Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change ^P[OV\[UV[PJL