4R7 Features n Shielded construction n Metal alloy powder core n High saturation current n Low buzz noise n Flat wire n RoHS compliant* and halogen free** SRP0312 Series - Shielded Power Inductors Electrical Specifications 25 C Additional Information Click these links for more information: Q Inductance SRF DCR DCR Irms Isat Bourns Q Test 100 kHz / 1 V (MHz) (mW) (mW) (A) (A) Part Number Typ. Freq, Typ. Typ. Max. Typ. Typ. L (H) Tol. (%) (MHz) SRP0312-R47K 0.47 10 18 25.2 91 15.3 17.8 6.6 8.0 PRODUCT TECHNICAL INVENTORY SAMPLES CONTACT LIBRARY SRP0312-R68K 0.68 10 14 25.2 77 21.2 24.8 5.6 6.0 SRP0312-1R0K 1.00 10 23 7.96 59 29.0 34.0 4.7 5.0 SRP0312-1R5K 1.50 10 28 7.96 45 49.0 58.0 3.6 4.3 General Specifications SRP0312-2R2K 2.20 10 28 7.96 38 63.5 74.0 3.1 3.7 Operating Temperature SRP0312-3R3K 3.30 10 22 7.96 36 110.0 129.0 2.4 3.0 ................................-40 C to +125 C SRP0312-4R7K 4.70 10 22 7.96 29 175.0 210.0 1.9 2.5 (Temperature rise included) Storage Temperature (Component) Product Dimensions Recommended Layout ................................-40 C to +125 C Rated Current 3.10 0.2 1.30 REF........... Inductance drops 30 % at Isat (.122 .008) (.051) 1 Temperature Rise ... 40 C at rated Irms 0.23 1.60 (.009) Rated Voltage ..................................50 V 2.30 (.063) REF. (.091) REF. Moisture Sensitivity Level .....................1 ESD Classification (HBM).................N/A Note 1: Circuit design, component, PCB trace size 3.70 REF. (.146) and thickness, airflow and other cooling provisions all affect the part temperature. Part temperature should be 3.40 0.2 verified in the end application. MM (.134 .008) DIMENSIONS: (INCHES) Materials Electrical Schematic Core ..........................Metal alloy powder Wire ............................Enameled copper Terminal Finish ...................................Sn 3.40 MAX. (.134) Packaging ..... 4000 pcs. per 13-inch reel Please consult Bourns Model SRP-A Series Visual Inspection Guide for detailed 1.20 construction, processing and testing MAX. (.047) information. How to Order SRP0312 - 4R7K DIMENSIONS: MM Model (INCHES) Value Code (see table) 0.95 0.1 (.037 .004) 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 900or less ppm (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. pro dTuhcets 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. 3R3 RoHS COMPLIANT* & HALOGEN FREE** *RoHS COMPLIANT LEAD FREE LEAD FREE VERSIONS ARE RoHS COMPLIANT* SRP0312 Series - Shielded Power Inductors L vs. I Charts SRP0312-R47K SRP0312-R47K 120% 50 100% 40 80% 30 60% 20 40% 10 20% 0% 0 0 2.0 4.0 6.0 8.0 10.0 0 1.4 2.8 4.2 5.6 7.0 IDC (A) IDC (A) SRP0312-1R0K SRP0312-1R0K 120% 50 100% 40 80% 30 60% 20 40% 10 20% 0% 0 0 1.0 2.0 3.0 4.0 5.0 6.0 0 1.0 2.0 3.0 4.0 5.0 IDC (A) IDC (A) SRP0312-2R2K SRP0312-2R2K 120% 50 100% 40 80% 30 60% 20 40% 10 20% 0% 0 0 0.8 1.6 2.4 3.2 4.0 0 0.8 1.6 2.4 3.2 4.0 IDC (A) IDC (A) SRP0312-4R7K SRP0312-4R7K 120% 50 100% 40 80% 30 60% 20 40% 10 20% 0% 0 0 0.6 1.2 1.8 2.4 0 0.5 1.0 1.5 2.0 2.5 IDC (A) 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. L/LOA L/LOA L/LOA L/LOA Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C)