CO M G E & PL I AN N FR T* EE ** HS LO Ro HA Features Shielded construction Metal alloy powder core 4R7 High saturation current Low buzz noise Flat wire RoHS compliant* and halogen free** SRP0420 Series - Shielded Power Inductors Electrical Specifications @ 25 C Inductance @ 100 kHz / 1 V Bourns Part Number Q Typ. Q Test Freq, (MHz) SRF (MHz) Typ. DCR (m) Typ. DCR (m) Max. Irms (A) Typ. Isat (A) Typ. L (H) Tol. (%) SRP0420-R47K 0.47 10 20 25.2 92 7.5 8.9 10.5 18.0 SRP0420-R68K SRP0420-1R0K SRP0420-1R5K SRP0420-2R2K SRP0420-3R3K SRP0420-4R7K SRP0420-6R8K SRP0420-100K 0.68 1.00 1.50 2.20 3.30 4.70 6.80 10.0 10 10 10 10 10 10 10 10 11 50 46 36 40 37 27 35 25.2 7.96 7.96 7.96 7.96 7.96 7.96 2.52 64 50 38 28 25 24 20 17 11.4 15.5 20.8 29.5 44.5 78.0 100.0 200.0 13.2 18.5 24.5 35.5 52.0 91.0 117.0 235.0 9.3 7.3 6.0 4.8 3.9 3.1 2.6 1.8 10.5 10.6 8.0 6.2 5.2 4.6 3.8 2.8 Product Dimensions Recommended Layout 4.10 0.2 (.161 .008) General Specifications 4.80 REF. (.189) 2.00 (.079) REF. 2.50 REF. (.098) 1.80 REF. (.071) R47 4.40 0.2 (.173 .008) DIMENSIONS: MM (INCHES) Electrical Schematic 4.40 MAX. (.173) Operating Temperature ................................-40 C to +125 C (Temperature rise included) Storage Temperature (Component) ................................-40 C to +125 C Rated Current ............ Inductance drops 30 % at Isat Temperature Rise ... 40 C at rated Irms1 Rated Voltage ..................................50 V Moisture Sensitivity Level ..................... 1 ESD Classification (HBM)................. N/A Note 1: Circuit design, component, PCB trace size and thickness, airflow and other cooling provisions all affect the part temperature. Part temperature should be verified in the end application. Materials 2.00 MAX. (.079) Core ..........................Metal alloy powder Wire ............................Enameled copper Terminal Finish ...................................Sn Packaging ..... 2500 pcs. per 13-inch reel Please consult Bourns(R) Model SRP-A Series Visual Inspection Guide for detailed construction, processing and testing information. How to Order 1.10 0.1 (.043 .004) SRP0420 - 4R7K Model Value Code (see table) 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. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. SRP0420 Series - Shielded Power Inductors L vs. I Charts SRP0420-R47K SRP0420-R47K 120% 50 Temperature Rise (C) 100% L/LOA 80% 60% 40% 20% 0% 0 4.0 8.0 12.0 16.0 40 30 20 10 0 20.0 0 2.4 4.8 IDC (A) SRP0420-1R0K Temperature Rise (C) 80% L/LOA 12.0 6.4 8.0 4.4 5.5 50 100% 60% 40% 20% 0% 0 2.4 4.8 7.2 9.6 40 30 20 10 0 12.0 0 1.6 3.2 IDC (A) 4.8 IDC (A) SRP0420-2R2K SRP0420-2R2K 120% 50 Temperature Rise (C) 100% 80% L/LOA 9.6 SRP0420-1R0K 120% 60% 40% 20% 0% 0 1.6 3.2 4.8 6.4 40 30 20 10 0 8.0 0 1.1 IDC (A) 2.2 3.3 IDC (A) SRP0420-100K SRP0420-100K 120% 50 Temperature Rise (C) 100% 80% L/LOA 7.2 IDC (A) 60% 40% 20% 0% 0 0.8 1.6 2.4 IDC (A) 3.2 4.0 40 30 20 10 0 0 0.5 1.0 1.5 2.0 IDC (A) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. SRP0420 Series - Shielded Power Inductors Soldering Profile Peak Temperature260 C max. Max. Peak Temperature -5 C30 sec. max. Max. Time Above 217 C: 60~150 sec. max. Temperature Rising Area Preheat Area Reflow Area Forced Cooling Area +4.0 C/Sec. Max. 150~200 C / 60~120 Sec. +3.0 C/Sec. Max. -(1.0~5.0) C/Sec. Max. Peak Temperature: 260 C Temperature (C) 250 217 C 60~150 Sec. 200 60 Sec. Max. 150 60~120 Sec. 100 50 0 50 100 150 200 250 Time (Seconds) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. SRP0420 Series - Shielded Power Inductors Packaging Specifications 330 DIA. (12.99) 18.4 (.724) 2.0 0.5 (.079 .020) COVER TAPE 21 0.8 (.827 .031) 50 MIN. (1.969) 13.5 0.5 (.531 .020) 14 MAX. (.551) 8 (.315) END COMPONENTS 4R7 4R7 LEADER NO COMPONENT 360 (14.173) MIN. 4 (.157) 4R7 4R7 12 (.472) EMBOSSED CARRIER TRAILER NO COMPONENT 960 (37.795) MIN. USER DIRECTION OF FEED QTY: 2,500 PCS PER REEL DIMENSIONS: MM (INCHES) Asia-Pacific: Tel: +886-2 2562-4117 * Email: asiacus@bourns.com EMEA: Tel: +36 88 885 877 * Email: eurocus@bourns.com The Americas: Tel: +1-951 781-5500 * Email: americus@bourns.com www.bourns.com REV. 02/20 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. 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