Features Shielded construction Metal alloy powder core High saturation current Low buzz noise Flat wire AEC-Q200 compliant RoHS compliant* and halogen free** SRP4018FA Series Shielded Power Inductors Electrical Specifications 25 C Inductance I sat (A) I rms (A) Q 100 kHz / 0.1 V Typ. Typ. Min. SRF DCR DCR Bourns 100 (MHz) (m) (m) 20 C 40 C 10 % L 20 % L 30 % L Part Number L (H) Tol. % kHz Typ. Typ. Max. Temp. Rise Temp. Rise Drop Drop Drop SRP4018FA-R33M 0.33 20 % 15 92 4.7 5.2 11 15 8.0 11.5 15 SRP4018FA-R47M 0.47 20 % 15 90 6.0 6.8 9.8 13.2 7.0 10.0 14 SRP4018FA-R60M 0.60 20 % 15 85 6.9 7.8 9.4 12.4 5.8 8.8 12.8 SRP4018FA-R68M 0.68 20 % 15 73 7.3 8.2 9.2 12 5.2 8.0 11.6 SRP4018FA-R82M 0.82 20 % 15 62 8.6 9.5 8.5 11.5 4.8 6.5 10.2 SRP4018FA-1R0M 1.00 20 % 15 56 10.6 11.7 8.0 11 4.5 5.4 9.2 SRP4018FA-1R2M 1.20 20 % 15 53 12.2 13.4 7.2 9.5 4.3 5.0 8.6 Product Dimensions General Specifications Operating Temperature 4.1 0.2 3.4 0.3 ................................-55 C to +155 C (.161 .008) (.134 .012) (Temperature rise included) Storage Temperature (Component) ................................-55 C to +155 C Rated Current 0.88 0.2 R68 4.1 0.2 1.6 0.25 (.035 .008) Inductance drops 10, 20 or 30 % at Isat (.161 .008) (.063 .010) Temperature Rise 1933 1 ................... 20 or 40 C at rated Irms MSL ......................................................1 ESD Classification (HBM)................. N/A 1.8 0.2 Note 1: Circuit design, component, PCB trace size and (.071 .008) thickness, airflow and other cooling provisions all can MM DIMENSIONS: affect the part temperature. Part temperature should be INCHES verified in the end application. Typical Part Marking Schematic Materials Core .......................... Metal alloy powder INDUCTANCE Wire ............................Enameled copper CODE Terminal Finish ...................................Sn Packaging ..... 3000 pcs. per 13-inch reel R68 YYWW How to Order Recommended Layout DATE CODE: SRP4018FA - 1R0M 3.8 REF. YY = LAST TWO DIGITS OF YEAR (.150) WW = WEEK NUMBER Model Value Code (see table) 3.4 REF. (.134) 1.4 REF. (.055) WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov * RoHS Directive 2015/863, Mar 31, 2015 and Annex. ** 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. 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. 1R0 1933 *RoHS COMPLIANT, **HALOGEN FREE & AEC-Q200 COMPLIANT SRP4018FA Series Shielded Power Inductors Soldering Profile NATURAL PRE-HEATING SOLDERING COOLING T (260 C / 10 seconds max.) P t (245 C / 20~40 seconds) p 217 200 60 ~ 150 seconds 150 60 ~ 180 seconds 480 seconds max. 25 Time (Seconds) REFLOW TIMES: 3 MAX. L vs. I Charts SRP4018FA-R47M SRP4018FA-R33M SRP4018FA-R60M 0.50 0.60 100 100 0.80 100 0.48 0.40 80 80 0.64 80 0.36 0.30 60 0.48 60 60 0.24 0.20 40 0.32 40 40 0.12 0.10 20 0.16 20 20 0 0 0 0 0 0 0 3.5 7.0 10.5 14.0 17.5 0 3.5 7.0 10.5 14.0 17.5 0 3 6 9 12 15 DC Current (A) DC Current (A) DC Current (A) SRP4018FA-R68M SRP4018FA-1R0M SRP4018FA-R82M 0.90 100 1.0 100 1.25 100 0.72 0.8 80 1.00 80 80 0.54 0.6 60 0.75 60 60 0.36 0.4 40 0.50 40 40 0.18 0.2 20 0.25 20 20 0 0 0 0 0 0 03619215 0 3 6 9 12 15 0 3 6 9 12 15 DC Current (A) DC Current (A) DC Current (A) SRP4018FA-1R2M 1.5 100 1.2 80 0.9 60 0.6 40 0.3 20 0 0 0 2.5 5.0 7.5 10.0 12.5 DC Current (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. Inductance ( H) Inductance (H) Inductance (H) Temperature (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Inductance (H) Inductance (H) Temperature Rise (C) Temperature Rise (C) Inductance (H) Inductance (H) Temperature Rise (C) Temperature Rise (C)