Features Applications n Shielded construction n Automotive systems: - Driver assistant n Inductance range: 1 to 100 H - Infotainment n Heating current up to 3.6 A - Lighting n AEC-Q200 qualified n DC/DC converters n RoHS compliant* and halogen free** n Power supplies SRR3818A Series - Shielded Power Inductors Electrical Specifications 25 C General Specifications Operating Temp......... -40 C to +150 C Inductance 1 2 3.80 0.20 I rms I rms SRF DCR (m W) (Temperature rise included) Bourns I sat 100 kHz/0.1 V (.150 .008) (MHz) (A) (A) Part Number (A) Storage Temperature .. -40 C to +150 C L (H) Tol. (%) Typ. Typ. Max. Typ. Typ. Temperature Rise SRR3818A-1R0Y 1.0 30 165 27.5 37 2.75 3.6 2.1 1 ..................... 20 C typ. at rated Irms 2 SRR3818A-1R5Y 1.5 30 125 33 47 2.5 3.1 1.6 3.80 0.20 40 C typ. at rated Irms (.150 .008) SRR3818A-2R2Y 2.2 30 95 45.5 60 2 2.6 1.4 Rated Current SRR3818A-2R7Y 2.7 30 90 49.5 65 1.9 2.5 1.3 ............ Inductance drops 35 % at Isat SRR3818A-3R3Y 3.3 30 75 64.5 85 1.7 2.1 1.15 Moisture Sensitivity Level .....................1 ESD Classification (HBM) ...................3B SRR3818A-3R9Y 3.9 30 70 80 105 1.6 2 1.05 SRR3818A-4R7Y 4.7 30 60 90 1201.80 0.20 1.5 1.9 0.95 (.071 .008) SRR3818A-6R8Y 6.8 30 50 125 160 1.25 1.6 0.8 Materials SRR3818A-100M 10 20 40 180 235 1 1.3 0.65 Core ..............................................Ferrite SRR3818A-150M 15 20 30 260 340 0.8 1.05 0.55 Wire ............................Enameled copper SRR3818A-220M 22 20 25 395 500 0.65 0.8 0.43 Terminal Finish ...................................Sn SRR3818A-330M 33 20 20 590 740 0.5 0.65 0.34 Packaging ....... 1000 pcs. per 7-inch reel SRR3818A-470M 47 20 15 825 1030 0.45 0.56 0.3 1.30 0.20 1.20 0.20 (.051 .008) (.047 .008) SRR3818A-680M 68 20 13 1280 1600 0.38 0.46 0.24 Product Dimensions SRR3818A-101M 100 20 11 2040 2600 0.28 0.34 0.2 3.80 0.20 (.150 .008) How to Order Electrical Schematic SRR3818A - 1R0Y 3.80 0.20 Model (.150 .008) Value Code (see table) 1.30 0.20 (.051 .008) Recommended Layout 4.30 1.60 1.80 0.20 (.063) (.169) (.071 .008) 1.30 0.20 1.20 0.20 1.10 (.051 .008) (.047 .008) (.043) 1.60 (.063) MM DIMENSIONS: 1.30 0.20 (INCHES) (.051 .008) MM DIMENSIONS: (INCHES) 4.30 1.60 (.063) (.169) *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 1.10 (.043) 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. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 1.60 (.063) *RoHS COMPLIANT VERSIONS AVAILABLE *RoHS COMPLIANT LEAD FREE LEAD FREE VERSIONS ARE RoHS COMPLIANT* *RoHS COMPLIANT & AEC APPROVED *RoHS COMPLIANT AEC APPROVED (Select Models) SRF0504 Series - Line Filter SRR3818A Series - Shielded Power Inductors Inductance vs. IDC SRR3818A-1R0Y SRR3818A-1R5Y SRR3818A-2R2M 120% 120% 120% 100% 100% 100% 80% 80% 80% 60% 60% 60% 40% 40% 40% 20% 20% 20% 0% 0% 0% 0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 2.0 0 0.5 1.0 1.5 2.0 IDC (A) IDC (A) IDC (A) SRR3818A-2R7M SRR3818A-3R3M SRR3818A-3R9M 120% 120% 120% 100% 100% 100% 80% 80% 80% 60% 60% 60% 40% 40% 40% 20% 20% 20% 0% 0% 0% 0 0.4 0.8 1.2 1.6 0 0.3 0.6 0.9 1.2 1.5 0 0.3 0.6 0.9 1.2 IDC (A) IDC (A) IDC (A) SRR3818A-6R8M SRR3818A-100M SRR3818A-4R7M 120% 120% 120% 100% 100% 100% 80% 80% 80% 60% 60% 60% 40% 40% 40% 20% 20% 20% 0% 0% 0% 0 0.2 0.4 0.6 0.8 1.0 0 0.3 0.6 0.9 1.2 0 0.2 0.4 0.6 0.8 IDC (A) IDC (A) IDC (A) SRR3818A-150M SRR3818A-220M SRR3818A-330M 120% 120% 120% 100% 100% 100% 80% 80% 80% 60% 60% 60% 40% 40% 40% 20% 20% 20% 0% 0% 0% 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 0.1 0.2 0.3 0.4 IDC (A) IDC (A) IDC (A) SRR3818A-470M SRR3818A-680M SRR3818A-101M 120% 120% Specifications are subject to change without notice. 120% The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. 100% Users should verify actual device performance in their specific100% applications. 100% 80% 80% 80% 60% 60% 60% 40% 40% 40% 20% 20% 20% 0% 0% 0% 0 0.1 0.2 0.3 0.4 0 0.1 0.2 0.3 0 0.1 0.1 0.3 0.2 0.3 IDC (A) IDC (A) IDC (A) L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA L/LOA