NT IA PL M CO S oH *R Features Applications ■ Available in E6 series ■ Input/output of DC/DC converters ■ Unit height of 2.8 mm ■ Power supplies for: • Portable communication equipment • Camcorders • LCD TVs • Car radios ■ Current up to 7 A 100 ■ Lead free ■ RoHS compliant* SRU1028 Series - Shielded SMD Power Inductors Electrical Specifications Inductance 100 KHz Bourns Part No. (µH) SRU1028-1R0Y SRU1028-1R5Y SRU1028-2R2Y SRU1028-3R3Y SRU1028-4R7Y SRU1028-6R8Y SRU1028-8R2Y SRU1028-100Y SRU1028-150Y SRU1028-220Y SRU1028-330Y SRU1028-470Y SRU1028-560Y SRU1028-680Y SRU1028-820Y SRU1028-101Y SRU1028-121Y SRU1028-151Y 1.0 1.5 2.2 3.3 4.7 6.8 8.2 10.0 15.0 22.0 33.0 47.0 56.0 68.0 82.0 100.0 120.0 150.0 Electrical Schematic Tol. % ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 Q Ref. Test Frequency (MHz) SRF Min. (MHz) RDC (mΩ) I rms Max. (A) I sat Typ. (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 7.96 2.52 2.52 2.52 2.52 2.52 2.52 2.52 0.796 0.796 0.796 100.0 80.0 65.0 55.0 40.0 30.0 28.0 25.0 22.0 16.0 12.0 11.0 10.0 9.0 8.0 7.0 6.0 5.0 4.9 7.3 11.0 15.0 16.5 25.0 28.5 40.0 69.0 104.0 139.0 167.0 208.0 232.0 323.0 365.0 428.0 518.0 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 0.65 0.70 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 General Specifications Test Voltage........................................1 V Reflow Soldering ...230 °C, 50 sec. max. Operating Temperature .-40 °C to +125 °C (Temperature rise included) Storage Temperature..-40 °C to +125 °C Resistance to Soldering Heat ................................260 °C for 10 sec. Materials Core.....................Ferrite DR and RI core Wire .............................Enameled copper Base ......................................LCP E4008 Terminal ....................................Ag/Ni/Sn Rated Current ....................Ind. drop 35 % typ. at Isat Temperature Rise ......................40 °C max. at rated Irms Packaging..................1,000 pcs. per reel Product Dimensions 10.0 ± 0.3 (.394 ± .012) 10.0 ± 0.3 (.394 ± .012) Inductor Connection 2.8 ± 0.3 (.110 ± .012) 7.4 TYP. (.291) LCR METER DIMENSIONS: 3.4 (.134) TYP. 3.2 (.126) TYP. MM (INCHES) 3.4 TYP. (.134) Recommended Layout 1.8 (.071) REF. 7.2 (.283) REF. 1.8 (.071) REF. 3.6 (.142) REF. *RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. SRU1028 Series - Shielded SMD Power Inductors Packaging Specifications 330 DIA. (12.99) 2.0 ± 0.5 (.079 ± .020) 30.4 (1.20) COVER TAPE 13.0 ± 0.5 (.512 ± .020) DIA. 21.0 ± 0.8 (.827 ± .031) EMBOSSED CAVITY 50.0 (1.969) 13.0 ± 0.5 DIA. (.512 ± .020) EMBOSSED CARRIER 24.0 (.945) 26 (1.02) 4 (.157) END START 16 (.63) NO COMPONENT 160 (6.299) NO COMPONENT COMPONENTS USER DIRECTION OF FEED QTY: 1,000 PCS. PER REEL DIMENSIONS: REV. 01/06 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. MM (INCHES) 400 (15.748)