Features Applications Shielded construction DC/DC converters Iron powder core Power supplies for: Portable communications equipment High saturation current Laptop computers Inductance range: 0.56 to 47 H Camcorders, HDTV Rated current up to 18 A Video game consoles RoHS compliant* and halogen free** SRP6540 Series - Shielded Power Inductors Test Voltage ..................................0.25 V Inductance DCR I rms I sat Test Frequency ......................... 100 KHz Bourns Part No. L (H) 20 % (m) Max. (A) (A) Operating Temperature SRP6540-R56M 0.56 4.4 18 18 ................................-55 C to +125 C SRP6540-R68M 0.68 5.0 16.5 17 (Temperature rise included) Storage Temperature SRP6540-R82M 0.82 5.5 15 15 ................................-55 C to +125 C SRP6540-1R0M 1.0 7.2 12 13.5 Resistance to Soldering Heat SRP6540-1R5M 1.5 10.0 11 11 .............................+250 C for 10 sec. SRP6540-2R2M 2.2 15.5 9 9 Moisture Sensitivity Level .....................3 .................N/A SRP6540-3R3M 3.3 23.0 6.5 7 SRP6540-4R7M 4.7 33.5 6 6.5 1 Circuit design, component, PCB trace SRP6540-5R6M 5.6 38.0 5.5 6 SRP6540-6R8M 6.8 49.5 5 5.5 cooling provisions all affect the part SRP6540-8R2M 8.2 50.5 4.5 5 temperature. Part temperature should be SRP6540-100M 10 78.5 4 4 SRP6540-150M 15 121 2.9 2.9 Materials SRP6540-220M 22 133 2.5 2.5 Core ..................................... Iron powder SRP6540-270M 27 290 2 2 Wire ............................Enameled copper Terminal ....................................Cu/Ni/Sn SRP6540-390M 39 322 1.8 1.8 Rated Current .........Ind. drops 20 % typ. SRP6540-470M 47 366 1.6 1.6 at Isat Temperature Rise ................... 40 C typ. at rated Irms Packaging ..... 1200 pcs. per 13-inch reel Peak Temperature: 250 C max. Time Above 245 C: 30 sec. max. Product Dimensions Time Above 217 C: 60 ~ 150 sec. max. 7.20 0.3 Temperature 3.00 0.3 (.283 .012) Rising Area Preheat Area Reflow Area Forced Cooling Area (.118 .012) +4.0 C / sec. max. 150~200 C / 60~120 sec. +3.0 C / sec. max. -(1.0~5.0) C / sec. max. 6.50 0.2 (.256 .008) 250 217 C 60 ~ 150 sec. 200 60 sec. max. INDUCTANCE CODE MARKING 150 60 ~ 120 sec. 100 4.00 MAX. 1.70 0.5 (.157) (.067 .020) 50 Recommended Layout 0 50 100 150 200 250 Time (Seconds) 3.40 TYP. 3.70 (.134) (.146) WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov TYP. 7.40 * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. (.291) **Bourns considers a product to be halogen free if (a) the Bromine (Br) content is 900 ppm or less (b) the Chlorine TYP. (Cl) content is 900 ppm or less and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. Specications are subject to change without notice. Users should verify actual device performance in their specic MM applications. The products described herein and this document are subject to specic legal disclaimers as set forth on DIMENSIONS: (INCHES) the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf *RoHS COMPLIANT & **HALOGEN FREE Temperature (C) SRP6540 Series - Shielded Power Inductors L vs. I Charts SRP6540-R68M SRP6540-R56M SRP6540-R82M T 25 C L 25 C L 25 C T 25 C T 25 C L 25 C 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 0.6 50.0 0.8 0.9 50.0 50.0 0.8 40.0 40.0 40.0 0.6 0.4 0.6 30.0 30.0 30.0 0.4 0.5 20.0 20.0 20.0 0.2 0.3 0.2 10.0 10.0 10.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 IDC (A) IDC (A) IDC (A) SRP6540-2R2M SRP6540-1R0M SRP6540-1R5M L 25 C T 25 C L 25 C T 25 C L 25 C T 25 C 0.0 5.0 10.0 15.0 20.0 25.0 30.0 0.0 5.0 10.0 15.0 20.0 25.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 1.0 1.6 2.4 50.0 50.0 50.0 1.4 2.0 0.8 40.0 40.0 40.0 1.2 1.6 1.0 0.6 30.0 30.0 30.0 0.8 1.2 0.4 20.0 20.0 20.0 0.6 0.8 0.4 0.2 10.0 10.0 10.0 0.4 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 IDC (A) IDC (A) IDC (A) SRP6540-4R7M SRP6540-3R3M SRP6540-5R6M L 25 C L 25 C L 25 C T 25 C T 25 C T 25 C 0.0 2.0 4.0 6.0 8.0 10.0 12.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 4.0 5.0 6.0 50.0 50.0 50.0 3.5 5.0 40.0 4.0 40.0 40.0 3.0 4.0 2.5 30.0 3.0 30.0 30.0 2.0 3.0 20.0 2.0 20.0 20.0 1.5 2.0 1.0 10.0 1.0 10.0 10.0 1.0 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 4.0 6.0 8.0 0.0 2.0 4.0 6.0 8.0 0.0 2.0 4.0 6.0 IDC (A) IDC (A) IDC (A) 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. L ( H) L ( H) L ( H) T (C) T (C) T (C) L ( H) L ( H) L ( H) T (C) T (C) T (C) L ( H) L ( H) L ( H) T (C) T (C) T (C)