PL IA NT CO M *R oH S Features Applications ■ Shielded construction ■ Input/output of DC/DC converters ■ Unit height of 4.2 mm ■ Power supplies for: • Portable communications equipment • Camcorders • LCD TVs • Car audio systems ■ Inductance range: 0.10 µH to 0.22 µH ■ Current up to 35 A ■ RoHS compliant* SRP8040 Series - Shielded Power Inductors Electrical Specifications Bourns Part No. Inductance L (µH) IDC (A) RDC (mΩ) max. RDC (mΩ) typ. SRP8040-R10Y SRP8040-R22Y 0.10 ± 30 % 0.22 ± 30 % 35.0 25.0 0.65 0.65 0.49 0.49 SRP8040-R10Y: IDC based on inductance drop 10 % typical of L value at 20 °C. SRP8040-R22Y: IDC based on inductance drop 30 % typical of L value at 20 °C. Materials Core...............................................Ferrite Wire ..................................Tinned copper Terminal .........................................Cu/Sn Rated Current ....................See Electrical Specifications Temperature Rise..........40 ˚C at rated I rms Packaging .....1000 pcs. per 13-inch reel Soldering Profile 225 260 °C peak <1> 255 °C 220 °C 190°C 60 seconds maximum 175 Ramp Down 5 °C/second 150 °C Product Dimensions 125 120-150 seconds 8.2 ± 0.30 (.323 ± .012) 10 seconds minimum 75 7.6 ± 0.15 (.299 ± .006) Ramp Up 4 °C/second maximum 25 0 50 100 150 200 Time (Seconds) 250 300 6.10 ± 0.15 (.240 ± .006) R10 Temperature (°C) 275 <1> Maximum of 10 seconds between +255 °C and +260 °C General Specifications Test Voltage.....................................1.0 V Test Frequency ..........................100 KHz Reflow Soldering .....230 ˚C; 50 sec max. Operating Temperature ..-55 °C to +150 °C (Temperature rise included) Storage Temperature..-55 °C to +150 °C Resistance to Soldering Heat ..............................+260 °C for 10 sec. Electrical Schematic 4.20 ± 0.30 (.165 ± .012) TYP. TYP. 3.0 (0.118) 1.80 (.071) Recommended Layout 2.4 (.094) *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. 9.2 (.362) 4.4 (.173) 2.4 (.094) 6.8 (.268) 3.6 (.142) DIMENSIONS: MM (INCHES) SRP8040 Series - Shielded Power Inductors L vs. I Charts 40 0.06 0.04 0.02 0 20 0 10 20 30 Inductance (µH) 60 0.12 0.10 0.08 Temperature Rise (°C) Inductance (µH) 80 0.14 0 50 40 SRP8040-R22Y 0.20 0.18 0.16 100 100 80 0.14 60 0.12 0.10 0.08 40 0.06 0.04 0.02 0 20 0 5 10 15 Temperature Rise (°C) SRP8040-R10Y 0.20 0.18 0.16 0 25 20 DC Current (A) DC Current (A) Packaging Specifications 330.0 (13.00) DIA. 2.0 ± 0.5 (.079 ± .020) 30.4 (1.20) DIMENSIONS: MM (INCHES) THICKNESS 0.10 (.004) MAX. 13.0 (.51) DIA. EMBOSSED CAVITY 50 - 0 (1.97 - 0) 13.0 DIA. (.51) EMBOSSED CARRIER 26.0 + 0 (1.02 + 0) 4.0 (0.157) 12.0 (0.472) END R10 R10 R10 R10 R10 NO COMPONENT 160 (6.299) R10 START R10 NO COMPONENT COMPONENTS MIN. 400 (15.748) MIN. USER DIRECTION OF FEED REV. 05/11 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.