PL IA NT Features Applications CO M ■ Formerly model ■ Input/output of DC/DC converters *R oH S ■ Height of 3.0 mm max. ■ Power supplies for: ■ Current rating up to 3.1 A • • • • ■ RoHS compliant* Portable communication equipment Camcorders LCD TVs Car radios PM428S Series - Shielded SMD Power Inductor Electrical Specifications General Specifications Inductance 100 kHz Bourns Part No. PM428S-1R2-RC PM428S-1R8-RC PM428S-2R2-RC PM428S-2R7-RC PM428S-3R3-RC PM428S-3R9-RC PM428S-4R7-RC PM428S-5R6-RC PM428S-6R8-RC PM428S-8R2-RC PM428S-100-RC PM428S-120-RC PM428S-150-RC PM428S-180-RC PM428S-220-RC PM428S-270-RC PM428S-330-RC PM428S-390-RC PM428S-470-RC PM428S-560-RC PM428S-680-RC PM428S-820-RC PM428S-101-RC PM428S-121-RC PM428S-151-RC PM428S-181-RC (µH) 1.2 1.8 2.2 2.7 3.3 3.9 4.7 5.6 6.8 8.2 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 Tol. % ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 ±30 Test Q Frequency Ref. (MHz) 9.34 7.96 9.18 7.96 9.24 7.96 8.64 7.96 7.72 7.96 8.58 7.96 8.12 7.96 9.56 7.96 9.624 7.96 8.24 7.96 11.26 2.52 11.26 2.52 9.66 2.52 11.64 2.52 8.26 2.52 10.76 2.52 9.7 2.52 9.74 2.52 10.88 2.52 9 2.52 8.42 2.52 8.6 2.52 8.78 0.796 13.32 0.796 11.72 0.796 13.86 0.796 SRF Typ. (MHz) 176 146 111 92 76 56 55 69 77 45 34 25 27 25 23 18 16 14 13 13 11 8 9 8 6 7 DCR Max. (mΩ) 20 25 28 30 35 60 70 85 90 100 110 125 150 160 185 200 230 250 280 320 400 520 600 700 860 1000 Irms (A) 3.10 2.70 2.50 2.35 2.15 1.72 1.55 1.38 1.30 1.25 1.19 1.12 1.03 0.98 0.93 0.89 0.82 0.80 0.75 0.70 0.63 0.56 0.51 0.47 0.42 0.39 Isat (A) 2.56 2.20 2.05 1.80 1.65 1.50 1.30 1.20 1.15 1.05 1.00 0.85 0.78 0.75 0.72 0.60 0.58 0.50 0.48 0.41 0.36 0.32 0.30 0.28 0.26 0.23 Test Voltage .................... 0.1 V, 100 KHz 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 Material ................................Ferrite Wire ...........................Enameled Copper Adhesive .............................Epoxy Resin Terminal ....................................Ag/Ni/Sn Rated Current .......Ind. drop of 35 % typ. at Isat Temperature Rise ....... 30 ˚C typ. at Irms Packaging .................. 2000 pcs. per reel Product Dimensions 4.80 ± 0.20 (.189 ± .008) 4.80 ± 0.20 (.189 ± .008) 6R8 2.80 ± 0.20 (.110 ± .008) 1.60 (.063) TYP. Soldering Profile 275 <1> Maximum of 10 seconds between +255°C and +260°C 260°C peak <1> 255°C TYP. 1.60 (.063) 225 220°C Temperature (°C) 190°C Ramp Down 6°C/second maximum 60 - 90 seconds 175 1.60 (.063) TYP. 150°C Recommended Layout 125 120 - 150 seconds 5.30 REF. (.209) 10 seconds minimum 2.00 (.079) REF. 75 Ramp Up 3°C/second maximum R 25 0 50 100 150 200 250 Time (seconds) 300 1.80 (.071) REF. REF. 1.50 (.059) 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. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. DIMENSIONS: MM (INCHES) PM428S Series - Shielded SMD Power Inductor Inductance vs. Current Electrical Schematic 7 5 561 3 Inductance (µH) 2 151 102 7 5 3 330 2 101 7 100 5 4R7 3 LCR METER 2 100 1R2 7 101 2 3 7 102 5 2 3 5 7 103 2 3 5 7 104 DC Current (mA) Packaging Specifications 2.0 ± 0.5 (.079 ± .020) 178.0 (7.00) DIA. 16.5 (.650) DIA. 13.0 (.511) 21.0 ± 0.8 (.827 ± .032) 50.0 - 0 (1.969 - 0) 13.0 DIA. (.511) 14.0 + 0 (.551 + 0) 8.0 (.315) END 6R8 4.0 (.157) 6R8 6R8 NO COMPONENT 200 (7.87) 6R8 NO COMPONENT COMPONENTS USER DIRECTION OF FEED REV. 03/11 START QTY: 2000 PCS. PER REEL Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 400 (15.75) DIMENSIONS: MM (INCHES)