The SRP1050 Series is obsolete and not recommended for new designs. *R *RoHS oH C S OM CO P M LIA PL N IA T NT Features Shielded construction Unit height of 5.0 mm Inductance range: 0.10 H to 0.2 H Current up to 40 A Lead free RoHS compliant* SRP1050 Series - Shielded Power Inductors Electrical Specifications Bourns Part No. Inductance L (H) Test Frequency (Hz) I rms (A) I sat (A) max. DCR (m) max. SRP1050-R10M SRP1050-R15M SRP1050-R20M 0.10 20 % 0.15 20 % 0.20 20 % 1M 1M 1M 40 40 30 50 42 40 0.65 0.65 0.65 60 50 0.2 40 0.15 30 0.1 20 0.05 0 0 5 10 15 20 25 30 35 40 45 SRP1050-R20 Inductance (H) 60 0.5 50 40 0.4 30 0.3 0.2 20 10 0.1 0 0 5 10 15 20 25 30 DC Current (A) Electrical Schematic 80 70 0.3 60 0.25 50 0.2 40 0.15 0.1 30 20 0.05 0 0 5 10 15 20 25 30 35 40 45 10 0 50 Product Dimensions 2.5 0.5 (0.098 0.020) 10.2 MAX. (0.402) DC Current (A) DC Current (A) 0.5 10 0 50 SRP1050-R15 0.4 0.35 Temperature Rise (C) 0.3 0.25 35 40 Temperature Rise (C) Inductance (H) 70 0.35 Materials Core...............................................Ferrite Wire .............................Enameled copper Terminal .........................................Cu/Sn Rated Current.......Ind. drops 20 % at I sat Temperature Rise..........40 C at rated I rms Packaging .......900 pcs. per 13-inch reel E T E L O S B O 80 Inductance (H) SRP1050-R10 0.4 Temperature Rise (C) L vs. I Charts General Specifications Test Voltage.....................................0.1 V Test Frequency..............................1 MHz 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. 6.8 (.268) MAX. R10 1.5 0.5 (0.059 0.020) 5.0 (0.197) MAX. 0 45 Recommended Layout 10.5 (0.414) 4.5 (0.177) 5.5 (0.217) DIMENSIONS: MM (INCHES) *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. Applications Input/output of DC/DC converters Power supplies for: * Portable communications equipment * Camcorders * LCD TVs * Car audio systems SRP1050 Series - Shielded Power Inductors Soldering Profile Temperature (C) 275 260 C peak <1> Maximum of 10 seconds between +255 C and +260 C 225 <1> 255 C 220 C 190C Ramp Down 5 C/second 60 seconds maximum 175 150 C 125 120-150 seconds 10 seconds minimum 75 E T E L O S B O Ramp Up 4 C/second maximum 25 0 50 100 150 200 250 300 Time (Seconds) Packaging Specifications 2.0 0.5 (.079 .020) 330.0 (13.00) DIA. 21.0 0.8 (.827 .031) THICKNESS 0.10 (.004) MAX. 13.5 0.5 (.53 .020) DIA. 75.0 2.0 (2.96 0.08) 13.0 0.5 DIA. (.512 .020) EMBOSSED CAVITY EMBOSSED CARRIER 24.0 0.5 (0.95 0.02) 0.35 0.05 (0.014 0.020) 1.5 0.1 (0.059 0.004) DIA. 4.0 0.1 (0.157 0.004) 2.0 0.1 (0.079 0.004) 8.4 0.5 (.331 0.020) 10.6 0.1 (0.417 0.004) 5.4 0.1 (0.213 0.004) 1.75 0.1 (.069 0.004) 24.0 0.3 (0.95 0.012) 7.2 0.1 (0.283 0.004) 12.0 0.1 (0.472 0.004) DIMENSIONS: REV. 08/08 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. MM (INCHES) 0.15 DIA. (0.0006)