Features n Shielded construction n Metal alloy powder core n High saturation current n Low buzz noise n Inductance range: 0.10 to 22 H n RoHS compliant* and halogen free** SRP7028C Series - Shielded Power Inductors General Specifications Electrical Specifications 25 C Operating Temperature Inductance 100 kHz ................................-40 C to +125 C Irms / 1 V Isat Q (Min.) SRF DCR DCR (Temperature rise included) (A) (A) Bourns Tol. 100 kHz (MHz) (mW) (mW) Terminal Storage Temperature (Component) Part Number L (H) (%) / 1 V Typ. Typ. Max. Typ. Typ. Type ................................. -40 C to +125 C SRP7028C-R10M 0.10 20 5 196 1.2 1.7 37.5 60.0 Rated Current SRP7028C-R15M 0.15 20 5 190 1.5 1.9 27.0 50.0 ............ Inductance drops 30 % at Isat 1 SRP7028C-R24M 0.24 30 10 118 2.5 3.1 23.0 39.0 Temperature Rise ... 40 C at rated Irms SRP7028C-R25M 0.25 20 10 118 2.5 3.1 23.0 39.0 Moisture Sensitivity Level .....................1 ESD Classification (HBM) .................N/A SRP7028C-R33M 0.33 20 10 115 3.5 3.9 20.0 32.0 Note 1: Circuit design, component, PCB trace SRP7028C-R47M 0.47 20 10 62 4.0 4.3 17.5 27.0 size and thickness, airflow and other cooling SRP7028C-R68M 0.68 20 15 55 4.8 5.5 15.5 25.0 provisions all affect the part temperature. SRP7028C-1R0M 1.00 20 15 45 8.3 10.0 11.0 22.0 Part temperature should be verified in the end Lead SRP7028C-1R5M 1.50 20 15 40 11.0 14.0 9.0 18.0 application. Frame SRP7028C-2R2M 2.20 20 15 32 15.0 18.0 8.0 14.0 SRP7028C-3R3M 3.30 20 15 25 27.0 30.0 6.0 13.5 Materials SRP7028C-4R7M 4.70 20 15 21 37.0 40.0 5.5 10.0 Core ..........................Metal alloy powder SRP7028C-6R8M 6.80 20 15 16 54.0 60.0 4.5 8.3 Wire ............................Enameled copper SRP7028C-8R2M 8.20 20 15 15 60.0 66.0 4.1 6.8 Terminal Finish .............................. Sn/Ni SRP7028C-100M 10.00 20 15 14 63.0 68.0 3.5 6.0 Packaging ..... 1000 pcs. per 13-inch reel SRP7028C-150M 15.00 20 20 12 107.0 123.0 3.0 4.0 SRP7028C-220M 22.00 20 20 10 155.0 180.0 2.2 3.6 Product Dimensions 7.1 0.30 How to Order Please consult Bourns Model SRP-A (.280 .012) Series Visual Inspection Guide for detailed SRP7028C - 100M construction, processing and testing information. Model 1R0 6.6 0.20 Value Code (see table) (.260 .008) 1907H Soldering Profile NATURAL 2.8 0.20 1.6 0.30 PRE-HEATING SOLDERING COOLING (.110 + .008) (.063 .012) T (260 C / 10 seconds max.) P t (245 C / 20~40 seconds) p 217 3.0 0.20 200 (.118 .008) 60 ~ 150 seconds 150 1.8 0.30 (.071 .012) 60 ~ 180 seconds Recommended Layout 480 seconds max. 25 8.0 Time (Seconds) (.315) REFLOW TIMES: 3 MAX. 3.4 (.134) 3.7 (.146) WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov * RoHS Directive 2015/863, Mar 31, 2015 and Annex. MM DIMENSIONS: **Bourns considers a product to be halogen free if (a) the Bromine (Br) content is 900 ppm or less (b) the Chlorine (INCHES) (Cl) content is 900 ppm or less and (c) the total Bromine (Br) and Chlorine (Cl)1500 content ppm isor 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. 1R0 1906H Temperature (C)SRP7028C Series - Shielded Power Inductors SRF0504 Series - Line Filter L vs. I Charts SRP7028C-R10M SRP7028C-R15M SRP7028C-R24M 0.180 80 0.25 120 0.380 100 0.144 64 0.20 96 0.304 80 0.108 48 0.15 72 0.228 60 0.072 32 0.10 48 0.152 40 0.036 16 0.05 24 0.076 20 0 0 0 0 0 0 0 14 28 42 56 70 0 14 28 42 56 70 0 9 18 27 36 45 DC Current (A) DC Current (A) DC Current (A) SRP7028C-R25M SRP7028C-R33M SRP7028C-R47M 0.40 100 0.55 90 0.80 90 0.32 80 0.44 72 0.64 72 0.24 60 0.33 54 0.48 54 0.16 40 0.22 36 0.32 36 0.08 20 0.11 18 0.16 18 0 0 0 0 0 0 0 9 18 27 36 45 0 8 16 24 32 40 0 7 14 21 28 35 DC Current (A) DC Current (A) DC Current (A) SRP7028C-R68M SRP7028C-1R0M SRP7028C-1R5M 1.20 90 1.80 100 2.5 90 0.96 72 1.44 80 2.0 72 0.72 54 1.08 60 1.5 54 0.48 36 0.72 40 1.0 36 0.24 18 0.36 20 0.5 18 0 0 0 0 0 0 0 6 12 18 24 30 0 5 10 15 20 25 0 4 8 12 16 20 DC Current (A) DC Current (A) DC Current (A) SRP7028C-2R2M SRP7028C-3R3M SRP7028C-4R7M 3.5 90 5.5 100 9.0 100 2.8 72 4.4 80 7.2 80 2.1 54 3.3 60 5.4 60 1.4 36 2.2 40 3.6 40 0.7 18 1.1 20 1.8 20 0 0 0 0 0 0 0 3.6 7.2 10.8 14.4 18.0 0 3 6 9 12 15 0 2.8 5.6 8.4 11.2 14.0 DC Current (A) DC Current (A) DC Current (A) SRP7028C-6R8M SRP7028C-8R2M SRP7028C-100M 12.0 90 16.0 90 15 100 9.6 72 12.8 72 12 80 Asia-Pacific: Tel: +886-2 2562-4117 Email: asiacus bourns.com 7.2 54 9.6 54 9 60 EMEA: Tel: +36 88 885 877 Email: eurocus bourns.com 4.8 36 6.4 36 6 40 The Americas: Tel: +1-951 781-5500 Email: americus bourns.com www2.4.bourns.com 18 3.2 18 3 20 0 0 0 0 0 0 Specifications are subject to change without notice. 0 1.8 3.6 5.4 7.2 9.0 0 1.5 3.0 4.5 6.0 7.5 0 1.6 3.2 4.8 6.4 8.0 Users should verify actual device performance in their specific applications. DC Current (A) DC Current (A) DC Current (A) 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. SRP7028C-150M SRP7028C-220M 25 80 40 90 20 64 32 72 15 48 24 54 10 32 16 36 5 16 8 18 0 0 0 0 0 1 2 3 4 5 0 0.84 1.68 2.52 3.36 4.20 DC Current (A) DC Current (A) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C)