SRR4028-1R2Y Bourns

Features Applications Height of 3.0 mm max. Input/output of DC/DC converters Current rating up to 3.1 A Power supplies for: Portable communication equipment RoHS compliant* Camcorders LCD TVs SRR4028 Series - Shielded SMD Power Inductors General Specifications Electrical Characteristics Test Voltage ................................... 0.1 V Inductance DCR Reflow Soldering ...230 C, 50 sec. max. Test SRF 100 kHz Max. Bourns Q Frequency Typ. I rms I sat Operating Temp...........-40 C to +125 C Part Number (H) Tol. % Ref. (MHz) (MHz) (m) (A) (A) (Temperature rise included) Storage Temperature .. -40 C to +125 C SRR4028-1R2Y 1.2 30 9.34 7.96 176 20 3.10 2.560 SRR4028-1R8Y 1.8 30 9.18 7.96 146 25 2.70 2.200 Resistance to Soldering Heat ................................ 260 C for 10 sec. SRR4028-2R2Y 2.2 30 9.24 7.96 111 28 2.50 2.050 Moisture Sensitivity Level......................1 SRR4028-2R7Y 2.7 30 8.64 7.96 92 30 2.35 1.800 ESD Classification (HBM) ..................N/A SRR4028-3R3Y 3.3 30 7.72 7.96 76 35 2.15 1.650 SRR4028-3R9Y 3.9 30 8.58 7.96 56 60 1.72 1.500 Materials SRR4028-4R7Y 4.7 30 8.12 7.96 55 70 1.55 1.300 Core ............................................. Ferrite SRR4028-5R6Y 5.6 30 9.56 7.96 69 85 1.38 1.200 Wire ........................... Enameled copper SRR4028-6R8Y 6.8 30 9.624 7.96 77 90 1.30 1.150 Adhesive ............................... Epoxy resin SRR4028-8R2Y 8.2 30 8.24 7.96 45 100 1.25 1.050 Terminal .................................... Ag/Ni/Sn SRR4028-100Y 10 30 11.26 2.52 34 110 1.19 1.000 Rated Current SRR4028-120Y 12 30 11.26 2.52 25 125 1.12 0.850 ...................Ind. drop 35 % typ. at Isat SRR4028-150Y 15 30 9.66 2.52 27 150 1.03 0.780 Temperature Rise ................... 30 C typ. SRR4028-180Y 18 30 11.64 2.52 25 160 0.98 0.750 at rated Irms SRR4028-220Y 22 30 8.26 2.52 23 185 0.93 0.720 Packaging .................... 500 pcs. per reel SRR4028-270Y 27 30 10.76 2.52 18 200 0.89 0.600 SRR4028-330Y 33 30 9.7 2.52 16 230 0.82 0.580 Product Dimensions SRR4028-390Y 39 30 9.74 2.52 14 250 0.80 0.500 4.80 0.20 SRR4028-470Y 47 30 10.88 2.52 13 280 0.75 0.480 (.189 .008) SRR4028-560Y 56 30 9 2.52 13 320 0.70 0.410 SRR4028-680Y 68 30 8.42 2.52 11 400 0.63 0.360 SRR4028-820Y 82 30 8.6 2.52 8 520 0.56 0.320 4.80 0.20 SRR4028-101Y 100 30 8.78 0.796 9 600 0.51 0.300 (.189 .008) 6R8 SRR4028-121Y 120 30 13.32 0.796 8 700 0.47 0.280 SRR4028-151Y 150 30 11.72 0.796 6 860 0.42 0.260 SRR4028-181Y 180 30 13.86 0.796 7 1000 0.39 0.230 SRR4028-221Y 220 30 11.3 0.796 5 1250 0.34 0.200 SRR4028-271Y 270 30 17.46 0.796 5 1500 0.32 0.180 2.80 0.20 SRR4028-331Y 330 30 16.48 0.796 5 1700 0.30 0.170 (.110 .008) SRR4028-391Y 390 30 13.18 0.796 4 2200 0.26 0.160 1.60 SRR4028-471Y 470 30 13.26 0.796 3 2600 0.24 0.155 (.063) SRR4028-561Y 560 30 16.46 0.796 3 3000 0.22 0.150 TYP. Soldering Profile 275 TYP. <1> Maximum of 10 seconds between 260C peak 1.60 +255C and +260C <1> 255C (.063) 225 1.60 220C MM (.063) DIMENSIONS: Ramp Down 190C (INCHES) 6C/second TYP. 60 - 90 seconds maximum 175 150C Recommended Layout 5.30 2.00 REF. 125 (.209) 120 - 150 seconds (.079) REF. 10 seconds minimum 75 Ramp Up 1.80 3C/second maximum R (.071) REF. REF. 25 1.50 0 50 100 150 200 250 300 (.059) Time (seconds) Rev. 02/22/05 2.00 (.079) REF. *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specications are subject to change without notice. Users should verify actual device performance in their specic WARNING Cancer and Reproductive Harm applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the www.P65Warnings.ca.gov last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. *RoHS COMPLIANT Temperature (C) SRR4028 Series - Shielded SMD Power Inductors Inductance vs. Current Electrical Schematic 7 5 561 3 2 2 151 10 7 5 3 330 2 1 10 7 100 5 4R7 LCR METER 3 2 0 10 1R2 7 1 2 3 4 10 23 5 710 23 5 7 10 23 5 7 10 DC Current (mA) 2.0 0.5 (.079 .020) 178.0 16.5 (7.00) (.650) DIA. DIA. 21.0 0.8 13.0 (.827 .032) (.511) 50.0 - 0 (1.969 - 0) 13.0 DIA. (.511) 14.0 + 0 (.551 + 0) 8.0 4.0 END START (.315) (.157) 6R8 6R8 6R8 6R8 NO COMPONENT NO COMPONENT 200 400 COMPONENTS (7.87) (15.75) USER DIRECTION OF FEED MM DIMENSIONS: (INCHES) QTY: 500 PCS. PER REEL REV. 03/18 Specications are subject to change without notice. Users should verify actual device performance in their specic applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Inductance ( H)