T PL IA N M CO *R oH S 6R8 Features Applications ■ Semi-shielded construction ■ DC/DC converters ■ Inductance range: 0.90 to 100 µH ■ Notebook computers ■ Rated current up to 4.6 A ■ Digital video cameras ■ RoHS compliant* and halogen free** ■ HDDs ■ Cellphones ■ Televisions, LCD displays SRN6028 Series - Semi-shielded Power Inductors Electrical Specifications @ 25 °C Inductance @ 100 KHz / 1 V General Specifications Bourns Part No. L (μH) Tol. % Q (Ref.) Test Freq. (MHz) SRN6028-R90Y 0.90 30 12 7.96 105 0.017 4.6 6.7 SRN6028-1R5Y 1.5 30 12 7.96 70 0.021 4.2 5.1 SRN6028-2R2Y 2.2 30 12 7.96 56 0.026 3.7 4.2 SRN6028-3R0Y 3.0 30 12 7.96 46 0.03 3.4 3.6 SRN6028-3R3M 3.3 20 12 7.96 42 0.034 3.4 3.6 SRN6028-3R9M 3.9 20 10 7.96 35 0.038 3.0 2.7 SRN6028-4R7M 4.7 20 10 7.96 34 0.038 3.0 2.7 SRN6028-6R0M 6.0 20 10 7.96 28 0.048 2.5 2.5 SRN6028-6R2M 6.2 20 10 7.96 28 0.063 2.2 2.2 SRN6028-6R8M 6.8 20 10 7.96 27 0.063 2.2 2.2 SRN6028-100M 10 20 18 2.52 20 0.078 1.9 1.9 SRF (MHz) Typ. DCR (Ω) Max. Irms (A) Isat (A) 15 20 14 2.52 17 0.114 1.8 1.6 SRN6028-220M 22 20 18 2.52 14 0.162 1.4 1.3 SRN6028-330M 33 20 11 2.52 10 0.264 1.1 1.1 SRN6028-470M 47 20 11 2.52 9 0.36 0.92 1.0 SRN6028-680M 68 20 11 2.52 7 0.51 0.77 0.8 SRN6028-101M 100 20 16 0.796 6 0.72 0.66 0.65 Materials Core ..............................................Ferrite Wire ............................Enameled copper Terminal Finish ...................................Sn Coating .................Magnetic epoxy resin Packaging ..... 1000 pcs. per 13-inch reel Product Dimensions 6.0 ± 0.2 (.236 ± .008) 2R2 SRN6028-150M Operating Temperature ................................. -40 °C to +125 °C (Temperature rise included) Storage Temperature .... -10 °C to +40 °C Resistance to Solder Heat ...............................+260 °C for 10 sec. Temperature Rise .....40 °C at rated Irms Rated Current ............ Inductance drops 30 % at Isat Soldering Profile Temperature (°C) Preheat 100 sec. max. 6.0 ± 0.2 (.236 ± .008) 10 sec. max. 1.50 (.059) TYP. 260 200 20 sec.max. Natural Cooling 150 Electrical Schematic 60 sec. min. 2.8 (.110) MAX. How to Order SRN6028 - 4R7M Recommended Layout Model 6.3 (.248) Value Code (see table) 5.7 (.224) *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. 1.6 (.063) 1.6 (.063) DIMENSIONS: MM (INCHES) 3312 -Series 2 mm -SMD Trimming Potentiometer SRF0504 Filter SRN6028 Series - Line Semi-shielded Power Inductors Packaging Specifications 2.0 ± 0.5 (.079 ± .020) 330 DIA. (12.99) 21.0 (.827) 13.5 ± 0.5 (.531 ± .020) DIA. 21.0 ± 0.8 (.827 ± .031) 99.5 (3.917) 13.5 ± 0.5 DIA. (.531 ± .020) 16.6 (.654) 1.5 +0.1/-0.0 DIA. (.059 +.004/-.000) 0.4 (.016) 1.75 (.069) 2.0 ± 0.05 (.079 ± .002) 4.0 (.157) 6.4 (.252) 3.1 (.122) 5.5 (.217) 6.4 (.252) 12.0 (.472) 16.0 (.630) 1.5 DIA. (.059) USER DIRECTION OF FEED QTY: 1000 PCS. PER REEL DIMENSIONS: MM (INCHES) Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 EMEA: Tel: +36 88 520 390 • Fax: +36 88 520 211 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com REV. 12/14 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.