& *R AE oH C- S C Q2 O 00 MP QU LI A L A NT IF IE D Features Applications ■ Shielded construction ■ Automotive systems: ■ Inductance range: 1 to 150 µH - Driver assistant - Information - Entertainment - Lighting ■ DC/DC converters ■ Power supplies ■ Heating current up to 7 A ■ AEC-Q200 qualified 100 ■ RoHS compliant* and halogen free** SRU1028A Series - Shielded Power Inductors Electrical Specifications @ 25 °C SRU1028A-1R0Y SRU1028A-1R5Y SRU1028A-2R2Y SRU1028A-3R3Y SRU1028A-4R7Y SRU1028A-6R8Y SRU1028A-8R2Y SRU1028A-100Y SRU1028A-150Y SRU1028A-220Y SRU1028A-330Y SRU1028A-470Y SRU1028A-560Y SRU1028A-680Y SRU1028A-820Y SRU1028A-101Y SRU1028A-121Y SRU1028A-151Y 1.0 1.5 2.2 3.3 4.7 6.8 8.2 10 15 22 33 47 56 68 82 100 120 150 Q (Ref.) Test Freq. (MHz) SRF (MHz) Typ. DCR (mΩ) Max. I rms (A) I sat (A) 14 12 12 14 12 12 12 20 26 26 24 20 22 20 20 20 18 18 7.96 7.96 7.96 7.96 7.96 7.96 7.96 2.52 2.52 2.52 2.52 2.52 2.52 2.52 2.52 0.796 0.796 0.796 100 80 65 55 40 30 28 25 22 16 12 11 10 9 8 7 6 5 6.5 10.0 15.0 20.0 23.0 33.0 37.0 53.0 90.0 135.0 180.0 230.0 270.0 300.0 420.0 470.0 560.0 680.0 7.00 6.50 5.30 4.60 4.50 3.50 3.30 2.80 2.00 1.60 1.25 1.30 1.10 1.00 0.90 0.85 0.70 0.65 8.00 6.50 4.80 4.30 3.80 3.00 2.70 2.40 2.00 1.40 1.20 1.10 1.00 0.90 0.85 0.80 0.70 0.65 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 T Inductance @ 100 KHz / 1 V L (µH) Tol. (%) Bourns Part Number General Specifications Operating Temperature ................................-40 °C to +125 °C (Temperature rise included) Storage Temperature ................................-40 °C to +125 °C Resistance to Soldering Heat ............................. +250 °C for 10 sec. Temperature Rise ......................40 °C typ. at rated I rms Inductance Drop .......... 35 % typ. at I sat Materials Core ..............................................Ferrite Wire ............................Enameled copper Terminal Finish .........................Ag/Ni/Sn Packaging .................. 1000 pcs. per reel Product Dimensions 10.0 ± 0.3 (.394 ± .012) 10.0 ± 0.3 (.394 ± .012) How to Order Electrical Schematic SRU1028A - 100Y 2.8 ± 0.3 (.110 ± .012) Model Value Code (see table) Inductor Connection 3.4 (.134) TYP. T T 7.4 TYP. (.291) 3.2 (.126) TYP. LCR METER 3.4 TYP. (.134) Recommended Layout 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 7.2 (.283) 1.8 (.071) 1.8 (.071) 4.0 (.157) DIMENSIONS: T * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. ** Bourns follows the prevailing definition of “halogen free” in the industry. 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. MM (INCHES) SRU1028ASeries Series - Shielded Power Inductors SRF0504 Line Filter 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. 250 Temperature (°C) Peak Temperature 250 ഒ max. Peak Temperature: 250 °C 217 °C 60~150 Sec. 200 Max. Peak Temperature -5 ഒ 30 sec. max. 60 Sec. Max. 150 60~120 Sec. 100 Max. Time Above 217 ഒ: 60~150 sec. max. 50 50 0 100 150 200 250 Time (Seconds) L vs. IDC 1.5 SRU1028A-1R0Y L @ 25 ℃ L @ 125 ℃ L @ 25 ℃ 16.0 1.2 L @ 125 ℃ 14.0 L (uH) L (uH) SRU1028A-150Y 18.0 0.9 0.6 12.0 10.0 8.0 6.0 4.0 0.3 2.0 0.0 0.0 3.0 6.0 9.0 12.0 0.0 0.0 15.0 0.5 1.0 1.5 7.0 L @ 25 ℃ 2.5 3.0 3.5 SRU1028A-101Y SRU1028A-6R8Y 8.0 2.0 IDC (A) IDC (A) 120.0 L @ 125 ℃ L @ 25 ℃ L @ 125 ℃ 100.0 80.0 5.0 L (uH) L (uH) 6.0 4.0 3.0 60.0 40.0 2.0 20.0 1.0 0.0 0.0 2.0 4.0 IDC (A) 6.0 8.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 IDC (A) 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. SRU1028A Series - Shielded Power Inductors Temperature vs. IDC SRU1028A-1R0Y SRU1028A-150Y 70.0 60.0 Ⴄ T @ 25 ℃ 60.0 Ⴄ T @ 25 ℃ 50.0 40.0 Ⴄ T (°C) Ⴄ T (°C) 50.0 40.0 30.0 30.0 20.0 20.0 10.0 10.0 0.0 0.0 3.0 6.0 9.0 12.0 0.0 0.0 15.0 0.5 1.0 1.5 IDC (A) SRU1028A-6R8Y 80.0 3.0 3.5 1.2 1.4 Ⴄ T @ 25 ℃ 60.0 60.0 50.0 50.0 Ⴄ T (°C) Ⴄ T (°C) 2.5 SRU1028A-101Y 70.0 Ⴄ T @ 25 ℃ 70.0 2.0 IDC (A) 40.0 40.0 30.0 30.0 20.0 20.0 10.0 10.0 0.0 0.0 2.0 4.0 6.0 0.0 0.0 8.0 0.2 0.4 0.6 IDC (A) 0.8 1.0 IDC (A) Packaging Specifications 330 DIA. (12.99) 2.0 ± 0.5 (.079 ± .020) 21.0 ± 0.8 (.827 ± .031) 30.4 (1.20) 13.0 ± 0.5 (.512 ± .020) DIA. 50 -0 (1.969 -0) 13.0 ± 0.5 DIA. (.512 ± .020) 26 +0 (1.02 +0) END 24 (.945) 4 (.157) START USER DIRECTION OF FEED QTY: 1000 PCS. PER REEL DIMENSIONS: 16 (.63) NO COMPONENT 200 (7.874) NO COMPONENT COMPONENTS 400 (15.748) REV. 09/13 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. MM (INCHES)