NT IA PL M CO S oH *R Features Applications ■ Available in E6 series, E12 series optional ■ Input/output of DC/DC converters ■ High inductance up to 15 mH ■ Power supplies for: • Portable communication equipment • Camcorders • LCD TVs • Car radios ■ High current up to 5.6 A ■ Gull wing leads ■ RoHS compliant* SRR0908 Series - SMD Shielded Power Inductors Electrical Specifications Inductance 1 kHz Bourns Part No. (µH) SRR0908-1R5ML SRR0908-2R7ML SRR0908-3R9ML SRR0908-5R6ML SRR0908-7R5ML SRR0908-100ML SRR0908-120ML SRR0908-150ML SRR0908-180ML SRR0908-220ML SRR0908-270ML SRR0908-330ML SRR0908-390ML SRR0908-470ML SRR0908-560ML SRR0908-680ML SRR0908-820ML SRR0908-101YL SRR0908-121YL SRR0908-151YL SRR0908-181YL SRR0908-221YL SRR0908-271YL SRR0908-331YL SRR0908-391YL SRR0908-471YL SRR0908-561YL SRR0908-681YL SRR0908-821YL SRR0908-102YL SRR0908-152YL SRR0908-222YL SRR0908-332YL SRR0908-472YL SRR0908-682YL SRR0908-822YL SRR0908-103YL SRR0908-153YL 1.5 2.7 3.9 5.6 7.5 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1000 1500 2200 3300 4700 6800 8200 10000 15000 Tol. % ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 Q Ref. Test Frequency (MHz) SRF Min. (MHz) RDC (ohms) I rms Max. (A) I sat Typ. (A) 20 20 20 18 18 33 40 45 40 35 45 40 45 40 35 30 30 40 42 45 35 35 30 30 33 30 35 30 35 85 120 95 95 90 90 85 110 130 7.96M 7.96M 7.96M 7.96M 7.96M 2.52M 2.52M 2.52M 2.52M 2.52M 2.52M 2.52M 2.52M 2.52M 2.52M 2.52M 2.52M 0.796M 0.796M 0.796M 0.796M 0.796M 0.796M 0.796M 0.796M 0.796M 0.796M 0.796M 0.796M 0.252M 0.252M 0.252M 0.252M 0.252M 0.252M 0.252M 0.0796M 0.0796M 65.0 50.0 35.0 25.0 15.0 11.0 11.0 8.50 8.50 6.00 6.00 5.00 5.00 4.00 3.00 2.50 2.40 6.00 5.70 4.60 4.20 3.80 3.40 3.00 2.60 2.30 2.20 2.00 1.90 1.80 1.30 1.00 0.90 0.80 0.60 0.50 0.50 0.40 0.014 0.019 0.021 0.028 0.032 0.040 0.050 0.050 0.075 0.080 0.090 0.10 0.14 0.15 0.17 0.18 0.26 0.28 0.34 0.45 0.50 0.60 0.70 0.80 1.00 1.15 1.50 1.70 2.20 2.50 4.00 5.00 8.00 12.00 16.50 24.00 26.00 40.00 5.60 4.80 4.40 3.80 3.40 3.00 2.50 2.20 2.00 1.90 1.80 1.70 1.50 1.40 1.35 1.25 1.05 1.00 0.90 0.80 0.70 0.65 0.60 0.55 0.50 0.45 0.38 0.35 0.32 0.30 0.25 0.20 0.15 0.12 0.10 0.10 0.09 0.08 10.00 7.70 6.60 5.50 4.60 4.10 4.00 3.90 3.80 3.30 2.90 2.70 2.40 2.30 2.10 1.90 1.90 1.30 1.10 1.00 1.00 0.95 0.75 0.70 0.65 0.62 0.55 0.50 0.45 0.41 0.35 0.29 0.24 0.19 0.16 0.14 0.13 0.12 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 5 sec. Materials Core.....................Ferrite DR and RI core Wire .............................Enameled copper Base..................................................LCP Terminal ....................................Cu/Ni/Sn Adhesive ..............................Epoxy resin Rated Current ....................Ind. drop 10 % typ. at Isat Temperature Rise ......................40 °C max. at rated Irms Packaging.....................400 pcs. per reel Product Dimensions 1 8 10.5 (.413) 101 MARKING (PIN 1 SIDE) 4 5 9.5 ± 0.3 (.374 ± .012) 7.5 ± 0.3 (.295 ± .012) 12.5 ± 0.5 (.492 ± .020) 11.0 ± 0.5 (.433 ± .020) 2.5 ± 0.3 (.098 ± .012) 2.5 ± 0.3 0.7 ± 0.1 (.028 ± .004) (.098 ± .012) Multiple windings possible (up to four windings). Recommended Layout SRR0908-101Y to 153Y 2.2 (.087) 10.3 (.406) 2.2 (.087) 1.0 (.039) 14.7 (.578) SRR0908-1R5M to 820M 10.3 (.406) 2.5 (.098) 2.2 (.087) 2.2 (.087) 9 (.355) 3.0 (.118) DIMENSIONS: 2.5 ± 0.3 (.098 ± .012) MM (INCHES) 14.7 (.578) *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. SRR0908 Series - SMD Shielded Power Inductors Packaging Specifications 2.0 ± 0.5 (.079 ± .020) 330 (12.99) DIA. DIMENSIONS: 30.4 (1.20) THICKNESS 0.10 (.004) MAX. 13.0 ± 0.5 (.512 ± .020) DIA. 21.0 ± 0.8 (.827 ± .031) MM (INCHES) EMBOSSED CAVITY 50.0 (1.969) 13.0 ± 0.5 DIA. (.512 ± .020) EMBOSSED CARRIER 26 (1.02) 4 (.157) END START 24 (.945) 16 (.63) 7.9 (.311) NO COMPONENT COMPONENTS NO COMPONENT 200 (7.874) 9600 (378.2) 400 (15.748) USER DIRECTION OF FEED QTY: 400 PCS. PER REEL Electrical Schematic SRR0908-1R5M to 820M 1 8 4 5 TOP VIEW (Typical Layout) Termination of each individual winding may be either Pin 1, 2, 3, or 4. Termination of opposite end of each individual winding may be either Pin 5, 6, 7, or 8 Windings will not be terminated to the same pin. See "Recommended Layout" for SRR0908-1R5M to 820M. REV. 05/05 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. SRR0908-101Y to 153Y 1 4