& *R AE oH C- S C Q2 O 00 MP QU LI A L A NT IF IE D Features Applications ■ Multiple configurations: parallel, series, ■ Automotive systems: ■ 470 ■ ■ ■ ■ dual-inductor and transformer Magnetically shielded, low radiation Inductance range: 8.2 to 600 μH Heating current up to 2.19 A AEC-Q200 qualified RoHS compliant* and halogen free** - Driver assistant - Information - Entertainment - Lighting ■ DC/DC converters ■ Power supplies ■ SEPIC - DC/DC converters SRF0703A Series - Dual-Winding Shielded Power Inductors Electrical Specifications @ 25 °C General Specifications Parallel Rating Bourns Part No. Inductance @ 100 kHz / 0.25 V L (μH) ±20 % DCR (Ω) Max. 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 Series Rating Irms (A) Isat (A) Inductance @ 100 kHz / 0.25 V L (μH) ±20 % DCR (Ω) Max. Irms (A) Isat (A) SRF0703A-8R2M 8.2 0.0772 2.19 2.66 34.1 0.306 1.1 1.33 SRF0703A-100M 10 0.0826 2.08 2.47 39.6 0.342 1.04 1.24 SRF0703A-150M 15 0.119 1.83 2.05 59.6 0.47 0.916 1.03 SRF0703A-220M 22 0.15 1.62 1.67 89.5 0.62 0.811 0.83 SRF0703A-330M 33 0.24 1.31 1.35 140.5 1.0 0.653 0.68 SRF0703A-470M 47 0.338 1.08 1.14 194.2 1.28 0.542 0.57 SRF0703A-680M 68 0.507 0.89 0.96 289.3 1.92 0.444 0.48 SRF0703A-820M 82 0.61 0.86 0.89 324.7 2.28 0.43 0.44 SRF0703A-101M 100 0.715 0.73 0.79 397.6 2.64 0.367 0.39 SRF0703A-151M 150 0.986 0.58 0.65 608.2 3.63 0.289 0.32 SRF0703A-221M 220 1.48 0.52 0.53 922.6 5.5 0.26 0.27 SRF0703A-331M 330 2.16 0.42 0.44 1335 8.25 0.211 0.22 Materials Core ..............................................Ferrite Wire ............................Enameled copper Terminal Finish ...................................Sn Packaging .................. 1500 pcs. per reel Product Dimensions 7.6 MAX. (.299) Electrical Schematics 1 2 N1 1 N2 3 2 N1 4 1 N2 3 2 N1 4 8R2 N2 3 PARALLEL 4 3.4 ± 0.2 (.134 ± .008) SERIES Recommended Layout 2 2.9 TYP. (.114) 3.0 (.118) 0.4 (.016) 3.0 (.118) 0.4 (.016) 2 1 7.9 (.311) 4 1.4 (.055) 3 2.7 (.106) TYP. 1 7.9 (.311) 3 DIMENSIONS: 1 2 4 3 MM (INCHES) 4 1.0 TYP. (.039) 1.4 (.055) DUAL INDUCTOR MODE 7.6 (.299) MAX. SERIES MODE DIMENSIONS: MM (INCHES) How to Order SRF0703A - 100M Model Value Code (see table) * 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 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. SRF0703A Series - Dual-Winding Shielded Power Inductors Inductance vs. IDC SRF0703A-8R2M L @ 25 °C 10.0 SRF0703A-220M L @ 25 °C L @ 125 °C L @ 25 °C 30.0 L @ 125 °C 100.0 25.0 8.0 80.0 6.0 4.0 L (µH) 20.0 L (µH) L (µH) SRF0703A-680M L @ 125 °C 15.0 10.0 2.0 0.8 1.6 2.4 0.0 0.0 3.2 40.0 20.0 5.0 0.0 0.0 60.0 0.5 1.0 1.5 0.0 0.0 2.0 0.3 IDC (A) IDC (A) 0.6 0.9 1.2 IDC (A) SRF0703A-151M L @ 25 °C L @ 125 °C 200.0 L (µH) 150.0 100.0 50.0 0.0 0.0 0.2 0.4 0.6 0.8 IDC (A) Temperature Rise vs. IDC SRF0703A-8R2M 100.0 ΔT @ 25 °C 80.0 ΔT @ 25 °C 60.0 50.0 80.0 60.0 40.0 ΔT (°C) 40.0 60.0 ΔT (°C) ΔT (°C) SRF0703A-680M SRF0703A-220M ΔT @ 25 °C 40.0 30.0 20.0 20.0 20.0 10.0 0.0 0.0 0.0 0.0 0.8 1.6 2.4 3.2 IDC (A) 0.0 0.5 1.0 IDC (A) 1.5 2.0 0.0 0.3 0.6 0.9 1.2 IDC (A) SRF0703A-151M ΔT @ 25 °C 80.0 ΔT (°C) 60.0 40.0 20.0 0.0 0.0 0.2 0.4 IDC (A) 0.6 0.8 Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. SRF0703A Series - Dual-Winding Shielded Power Inductors 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 Max. Peak Temperature -5 °C: 30 sec. max. 60~150 Sec. 200 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 4.0 (.157) 8R2 8R2 START 8R2 COMPONENTS 8R2 NO COMPONENT 400 (15.75) 200 (7.87) USER DIRECTION OF FEED QTY: 1500 PCS. PER REEL REV. 03/15 DIMENSIONS: MM (INCHES) Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications.