Features Applications n Available in E6 series n Input/output of DC/DC converters n Unit height of 3.8 mm n Power supplies for: Portable communication equipment n Current up to 7.2 A Camcorders n RoHS compliant* LCD TVs SRU1038 Series - Shielded SMD Power Inductors Electrical Specifications General Specifications 10.0 0.3 2.5 (.394 .012) (.098) Test Voltage .......................................1 V Inductance TYP. Reflow Soldering .. 230 C, 50 sec. max. 100 KHz Test SRF RDC Irms Isat Operating Temperature Bourns Tol. Q Freq. Typ. Max. Max. Typ. **K- ................................-40 C to +125 C Part No. (H) % Ref. (MHz) (MHz) (mW) (A) (A) Factor 10.0 0.3 5.0 0.5 (Temperature rise included) (.394 .012) (.197 .020) SRU1038-1R5Y 1.5 30 14 7.96 65.0 5.2 7.20 7.00 177 10.0 0.3 2.5 Storage Temperature SRU1038-2R2Y 2.2 30 12 7.96 55.0 10.5 6.80 6.50 145 (.098) (.394 .012) ................................-40 C to +125 C TYP. SRU1038-2R5Y 2.5 30 12 7.96 50.0 12.5 6.10 6.00 136 Rated Current 2.5 SRU1038-3R5Y 3.5 30 14 7.96 35.0 11.5 5.50 5.50 106 ...................Ind. drop 35 % typ. at Isat 3.8 0.3 (.098) (.150 .012) TYP. Temperature Rise SRU1038-3R8Y 3.8 30 14 7.96 35.0 15.0 5.50 5.50 104 10.0 0.3 5.0 0.5 .....................40 C max. at rated Irms (.394 .012) (.197 .020) SRU1038-5R0Y 5.0 30 12 7.96 30.0 14.5 4.60 4.80 94 Resistance to Soldering Heat SRU1038-5R2Y 5.2 30 12 7.96 30.0 22.0 4.60 4.80 92 ...............................260 C for 10 sec. 7.4 3.4 SRU1038-6R2Y 6.2 30 12 7.96 25.0 16.5 4.00 4.20 84 Moisture Sensitivity Level .....................1 TYP. (.291) (.134) 2.5 ESD Classification (HBM) ................. N/A SRU1038-6R8Y 6.8 30 TYP.13 7.96 36.0 35.0 3.90 4.00 80 3.8 0.3 (.098) (.150 .012) TYP. SRU1038-8R2Y 8.2 30 12 7.96 22.0 32.0 3.80 3.90 73 SRU1038-100Y 10.0 30 24 2.52 20.0 25.0 3.80 3.60 64 Materials SRU1038-150Y 15.0 30 24 2.52 16.0 37.0 2.80 2.70 51 Core ....................Ferrite DR and RI core 7.4 3.4 SRU1038-220Y 22.0 30 20 3.2 2.52 12.0 55.8 2.20TYP. 2.30 43 Wire ............................Enameled copper (.291) (.134) (.126) Terminal ....................................Ag/Ni/Sn TYP. SRU1038-270Y 27.0 30 22 2.52 11.0 78.0 1.85 1.90 39 TYP. Packaging .................... 800 pcs. per reel 3.4 SRU1038-330Y 33.0 30 22 2.52 10.0 86.0 1.80 1.80 35 TYP. (.134) SRU1038-470Y 47.0 30 22 2.52 8.0 121.0 1.65 1.60 29 SRU1038-680Y 68.0 30 24 2.52 7.0 166.0 1.30 1.30 26 Product Dimensions 3.2 SRU1038-101Y 100.0 30 24 0.796 6.0 220.0 1.10 1.10 20 (.126) 10.0 0.3 2.5 SRU1038-151Y 150.0 30 20 0.796 5.0 358.0 0.90 0.80 16 TYP. (.394 .012) (.098) TYP. 3.4 SRU1038-221Y 220.0 30 22 0.796 4.0 565.0 0.65 0.65 14 TYP. (.134) SRU1038-331Y 330.0 30 20 0.796 3.0 773.0 0.55 0.52 11 7.2 10.0 0.3 5.0 0.5 (.283) **K-Factor: To calculate core flux density, Bp-p (gauss) = K x L(H) x I (peak-to-peak ripple current, A), (.394 .012) (.197 .020) REF. 1.8 1.8 determine core loss from Core Loss vs. Flux Density plot on page 2. (.071) (.071) REF. REF. Electrical Schematic Recommended Layout 2.5 3.8 0.3 (.098) 7.2 (.150 .012) TYP. (.283) REF. 1.8 1.8 4.0 (.071) (.071) (.157) REF. REF. REF. 7.4 3.4 TYP. (.291) (.134) Inductor Connection TYP. 4.0 (.157) LCR METER REF. 3.2 (.126) TYP. 3.4 TYP. (.134) LCR METER MM DIMENSIONS: (INCHES) WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov LCR METER *RoHS Directive 2015/863, Mar 31, 2015 and Annex. 7.2 Specifications are subject to change without notice. (.283) Users should verify actual device performance in their specific applications. REF. 1.8 1.8 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. (.071) (.071) REF. REF. 4.0 (.157) REF. LCR METER 100 T T T T T T SRU1038 Series - Shielded SMD Power Inductors SRF0504 Series - Line Filter SRU1038 Core Loss vs. Flux Density 10000 1000 100 1 MHz 500 KHz 300 KHz 10 200 KHz 100 KHz 50 KHz 1 0.1 100 1000 10000 Flux Density Bp-p (gauss) Packaging Specifications 330 2.0 0.5 30.4 DIA. (12.99) (.079 .020) (1.20) COVER 13.0 0.5 TAPE 21.0 0.8 (.512 .020) (.827 .031) DIA. EMBOSSED CAVITY 50.0 (1.969) 13.0 0.5 DIA. EMBOSSED (.512 .020) CARRIER 24.0 26 (.945) (1.02) 4 (.157) END START 16 (.63) NO COMPONENT NO COMPONENT 160 400 COMPONENTS (6.299) (15.748) USER DIRECTION OF FEED QTY: 800 PCS. PER REEL MM DIMENSIONS: (INCHES) REV. 09/20 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. Core Loss (mW)