AE C C OM AP P PR OV EE Features CO M & PL AE IA C NT, CO * M *HA PL L IA OG NT EN FR 3.4 0.2 (.134 n .008) Multiple *R oH S 70 2.7 4 4 2.9 TYP. (.114) 3 (.106) TYP. configurations: parallel, series, dual-inductor and transformer n Magnetically shielded, low radiation n Inductance range: 8.2 to 600 H n Heating current up to 2.19 A n AEC-Q200 compliant n RoHS compliant* and halogen free** Applications n DC/DC converters n Power supplies n SEPIC - DC/DC converters SRF0703A Series - Dual-Winding Shielded Power Inductors 1 2 1.0 Electrical Specifications @ 25 C(.039) TYP. General Specifications Parallel Rating Bourns Part No. SRF0703A-8R2M0.4 Inductance @ 100 kHz / 0.25 V 7.6 MAX. L (mH) (.299)20 % (.118) 10 0.0826 15 2 0.119 SRF0703A-220M SRF0703A-330M 8R2 SRF0703A-470M SRF0703A-680M4 47 68 3 0.507 100 0.715 22 SRF0703A-151M SRF0703A-221M 330 1 N1 289.3 (.134 .008) 1.48 0.52 0.53 0.42 3 1.92 2.28 397.6 SERIES MODE 608.2 1335 1.1 1.33 0.916 1.03 1.04 0.811 0.653 0.542 0.444 0.43 2.64 0.367 5.5 0.26 3.63 922.6 8.25 0.289 0.211 1.24 0.83 0.68 0.57 0.48 0.44 0.39 0.32 0.27 0.22 1 2 N1 2 1.28 324.7 0.44 1 1 7.9 1.0 (.311) Isat (A) Operating Temperature .................................-40 C to +125 C (Temperature rise included) Storage Temperature .................................-40 C to +125 C Resistance to Solder Heat .............................. +250 C for 10 sec. Temperature Rise ........................40 C typ. at rated Irms Inductance Drop............ 30 % typ. at Isat Hi-pot (N1-N2).................500 Vac/60 Hz, 3 mA, 1 sec Moisture Sensitivity Level......................1 ESD Classification (HBM)................. N/A Materials Core...............................................Ferrite Wire.............................Enameled copper Terminal Finish....................................Sn Packaging................... 1500 pcs. per reel Product Dimensions 2 4 4 0.96 194.2 0.62 Irms (A) 2.9 TYP. (.114) N2 3 140.5 0.65 0.47 89.5 1.4 0.89 0.86 (.055) 0.342 2 59.6 1.14 0.89 3.0 0.306 (.118) 1.35 0.79 2.16 Electrical Schematics 4 3 2.7 (.106) TYP. 1.08 DCR (W) Max. 34.1 1.67 0.986 0.58 3.4 0.2 220 SRF0703A-331M 1 2.05 0.73 DUAL INDUCTOR MODE 150 39.6 1.83 2.08 7.9 0.61 2.47 0.4 2.66 (.016) MAX. 1.31 0.24 (.311) 0.338 82 (.055) SRF0703A-101M 7.6 Isat (A) 2.19 0.15(.299) 1.62 33 1.4 SRF0703A-820M Irms (A) 3.0 0.0772 8.2 DOT (.016) INDICATES SRF0703A-100M TERMINAL 1 SRF0703A-150M1 DCR (W) Max. Series Rating Inductance @ 100 kHz / 0.25 V L (mH) 20 % N1 N2 1.0 3 TYP. (.039) N2 DOT INDICATES TERMINAL 1 8R2 4 3 4 7.6 MAX. (.299) 2 7.6 (.299) MAX. SERIES PARALLEL Recommended Layout 3.0 (.118) 0.4 (.016) 1 1 2 2 7.9 (.311) 4 7.9 (.311) 3 1.4 (.055) 4 3.4 0.2 (.134 .008) 3.0 (.118) 0.4 (.016) DIMENSIONS: 3 3 1 2 2.9 TYP. (.114) SERIES MODE WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov N1 2.7 (.106) TYP. 4 1.4 (.055) DUAL INDUCTOR MODE 1 MM (INCHES) DIMENSIONS: 1.0 TYP. (.039) MM (INCHES) 1 2 2 1 2 * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. ** Bourns considers a product to be "halogen free" if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 0.4 900 ppm or less; and (c) the3.0total Bromine 0.4 (Br) (.118) and Chlorine (Cl) content is 1500 ppm or less. (.016) (.016) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. N1 N2the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. N2 N2 to specific legal disclaimers The products described herein and N1 this document are subject as set forth on 1 1 2 2 SRF0703A Series - Dual-Winding Shielded Power Inductors How to Order SRF0703A - 100M Model Value Code (see table) Inductance vs. IDC SRF0703A-8R2M L @ 125 C L @ 25 C L @ 125 C SRF0703A-220M SRF0703A-8R2M 10.0 10.0 8.0 30.0 25.0 30.0 L @ 25 C L @ 125 C L @ 25 C L @ 125 C SRF0703A-220M 100.0 80.0 4.0 2.0 0.8 0.8 1.6 IDC (A) 1.6 2.4 2.4 15.0 20.0 15.0 10.0 5.0 10.0 0.0 5.0 0.0 0.0 0.0 3.2 3.2 0.5 0.5 SRF0703A-151M IDC (A) L @ 25 C L @ 125 C L @ 25 C L @ 125 C 1.0 IDC (A) 1.0 1.5 1.5 2.0 L @ 125 C L @ 25 C L @ 125 C 80.0 60.0 60.0 40.0 40.0 20.0 20.0 0.0 0.0 0.0 0.0 2.0 L @ 25 C SRF0703A-680M 100.0 L (H)L (H) 6.0 4.0 2.0 0.0 0.0 0.0 0.0 0.3 0.3 IDC (A) 0.6 IDC (A) 0.6 0.9 1.2 0.9 1.2 IDC (A) SRF0703A-151M 200.0 200.0 150.0 L (H)L (H) SRF0703A-680M 20.0 25.0 8.0 6.0 L (H)L (H) L (H)L (H) L @ 25 C 150.0 100.0 100.0 50.0 50.0 0.0 0.0 0.0 0.0 0.2 0.2 0.4 IDC (A) 0.4 0.6 0.8 0.6 0.8 IDC (A) Temperature Rise vs. IDC SRF0703A-8R2M 40.0 20.0 0.0 0.0 0.8 0.0 0.8 1.6 IDC (A) 1.6 2.4 3.2 2.4 3.2 SRF0703A-151M IDC (A) 40.0 20.0 0.0 0.0 0.5 0.0 0.5 1.0 IDC (A) 1.0 IDC (A) 1.5 2.0 1.5 2.0 30.0 40.0 20.0 30.0 20.0 10.0 0.0 10.0 0.0 0.0 0.3 0.0 0.3 0.6 IDC (A) 0.6 0.9 1.2 0.9 1.2 IDC (A) T @ 25 C SRF0703A-151M 80.0 T @ 25 C 80.0 60.0 T (C) T (C) 50.0 40.0 60.0 40.0 20.0 0.0 T @ 25 C 60.0 50.0 T (C) T (C) T (C) T (C) T (C) T (C) 60.0 40.0 T @ 25 C SRF0703A-680M 60.0 T @ 25 C 80.0 60.0 80.0 60.0 20.0 0.0 T @ 25 C SRF0703A-220M 80.0 T @ 25 C 100.0 80.0 SRF0703A-680M SRF0703A-220M T @ 25 C SRF0703A-8R2M 100.0 60.0 40.0 40.0 20.0 20.0 0.0 0.0 0.0 0.2 0.0 0.2 0.4 IDC (A) 0.4 IDC (A) 0.6 0.8 0.6 0.8 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. SRF0703A Series - Dual-Winding Shielded Power Inductors Peak Temperature250 max. Max. Peak Temperature -5 30 sec. max. Max. Time Above 217 : 60~150 sec. max. Soldering Profile Temperature Rising Area Preheat Area Reflow Area Forced 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. Temperature (C) Peak Temperature: 250 C max. Peak Temperature: 250 C 250 217 C 60~150 Sec. 200 Max. Peak Temperature -5 C: 30 sec. max. 60 Sec. Max. 150 Max. Time Above 217 C: 90-150 sec. max. 60~120 Sec. 100 50 50 0 100 150 200 250 Time (Seconds) Packaging Specifications 330 DIA. (12.99) 2.0 0.5 (.079 .020) 22.4 (.882) 13.0 0.5 (.512 .020) DIA. 21.0 0.8 (.827 .031) 50.0 -0 (1.97 -0) 13.0 0.5 DIA. (.512 .020) 18 +0 (.709 +0) 16.0 (.630) 12.0 (.472) END 8R2 NO COMPONENT 200 (7.87) 4.0 (.157) 8R2 8R2 START 8R2 COMPONENTS 8R2 NO COMPONENT 400 (15.75) USER DIRECTION OF FEED QTY: 1500 PCS. PER REEL REV. 11/18 DIMENSIONS: MM (INCHES) 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(R) products manufactured by or on behalf of Bourns, Inc. and its affiliates (collectively, "Bourns"). Unless otherwise expressly indicated in writing, Bourns(R) products and data sheets relating thereto are subject to change without notice. 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