Features Shielded construction Inductance range: 0.68 to 330 H Heating current up to 9.5A AEC-Q200 qualied RoHS compliant* and halogen free** SRR1050A Series - Shielded Power Inductors Operating Temperature Inductance SRF Bourns DCR () I rms I sat ***K- ................................. -40 C to +125 C 100 kHz/0.1V (MHz) Part Number (A) Factor (A) Typ. (Temperature rise included) L (H) Tol. (%) Typ. Max. Storage Temperature .. -40 C to +125 C SRR1050A-R68Y 0.68 30 110 0.0045 0.0055 9.50 13.5 221 Temperature Rise SRR1050A-1R2Y 1.2 30 85 0.0058 0.007 8.30 10.5 158 .......................40 C typ. at rated Irms SRR1050A-2R2Y 2.2 30 53 0.0071 0.009 7.20 8.20 123 Rated Current SRR1050A-3R3Y 3.3 30 40 0.0086 0.011 6.50 7.80 100 ............ Inductance drops 35 % at Isat SRR1050A-4R2Y 4.2 30 29 0.0104 0.014 6.10 6.40 85 9 Failure In Time (FIT) ........24.7/10 hours SRR1050A-6R8Y 6.8 30 27 0.0151 0.019 5.40 5.40 65 Mean Time Between Failures (MTBF) SRR1050A-8R2Y 8.2 30 21 0.0181 0.022 5.00 4.85 58 6 ..................................40.4 x 10 hours SRR1050A-100Y 10 30 16.5 0.023 0.031 4.50 4.45 58 Materials SRR1050A-120Y 12 30 15 0.026 0.035 3.80 4.00 53 SRR1050A-150Y 15 30 14 0.035 0.047 3.40 3.60 44 Core ..............................................Ferrite SRR1050A-180Y 18 30 11 0.038 0.051 3.10 3.20 41 Wire ............................Enameled copper SRR1050A-220Y 22 30 10.5 0.046 0.062 2.90 2.95 38 Terminal Finish ...................................Sn SRR1050A-270Y 27 30 10 0.057 0.077 2.60 2.70 33 Packaging ....... 700 pcs. per 13-inch reel SRR1050A-330Y 33 30 9 0.069 0.093 2.50 2.40 30 Product Dimensions SRR1050A-390Y 39 30 6.8 0.079 0.106 2.25 2.30 28 SRR1050A-470Y 47 30 5.9 0.094 0.127 2.00 2.00 26 10.0 0.3 SRR1050A-560Y 56 30 5.5 0.124 0.160 1.90 1.90 24 (.394 .012) SRR1050A-680Y 68 30 5 0.138 0.208 1.60 1.65 22 SRR1050A-820Y 82 30 4.5 0.150 0.230 1.45 1.50 20 SRR1050A-101Y 100 30 4.2 0.179 0.255 1.35 1.35 18 10.20 0.3 SRR1050A-121Y 120 30 3.8 0.213 0.305 1.18 1.28 16 (.402 .012) 330 MAX. SRR1050A-151Y 150 30 3.6 0.253 0.370 1.10 1.12 15 SRR1050A-181Y 180 30 3.4 0.307 0.420 1.00 1.04 13 SRR1050A-221Y 220 30 3 0.373 0.500 0.94 0.94 12 SRR1050A-271Y 270 30 2.4 0.491 0.675 0.80 0.84 11 SRR1050A-331Y 330 30 2 0.613 0.815 0.73 0.75 10 I (peak-to-peak ripple current, A), determine core loss from Core Loss vs. Flux Density plot. Core Loss vs. Flux Density 4.80 0.3 (.189 .012) 1000 3.00 0.3 (.118 .012) 100 7.80 0.4 (.307 .016) 10 100 KHz 500 KHz 300 KHz 50 KHz 200 KHz 10 KHz 1 1.20 0.15 (.047 .006) 13.00 REF. 0.10 (.512) MM DIMENSIONS: (INCHES) 0.01 * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. 0.001 **Bourns considers a product to be halogen free if 100 1000 10000 (a) the Bromine (Br) content is 900 ppm or less (b) the Chlorine (Cl) content is 900 ppm or less and Flux Density Bp-p (gauss) (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov 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 100 *RoHS COMPLIANT & AEC APPROVED Core Loss (mW) SRF0504 Series - Line Filter SRR1050A Series - Shielded Power Inductors Recommended Layout Inductance vs. IDC 1.60 SRR1050A-2R2Y SRR1050A-100Y 2.5 (.063) 12 2.0 9 1.5 7.30 (.287) 6 1.0 3 0.5 1.60 3.20 L 25 C L 125 C L 25 C L 125 C (.063) (.126) 0 0 0 2 4 6 8 10 12 14 01 2 3 4 5 6 MM IDC (A) IDC (A) DIMENSIONS: (INCHES) SRR1050A-270Y SRR1050A-221Y 250 32 Electrical Schematic 200 24 150 16 100 8 50 How to Order L 25 C L 125 C L 25 C L 125 C 0 0 SRR1050A - 101Y 0 0.9 1.8 2.7 3.6 4.5 0 0.3 0.6 0.9 1.2 1.5 IDC (A) Model IDC (A) Value Code (see table) Temperature vs. IDC SRR1050A-2R2Y SRR1050A-100Y 100 80 T (C) T (C) 80 60 60 40 40 20 20 0 0 02 4 6 8 10 12 14 01 2 3 4 5 6 7 IDC (A) IDC (A) SRR1050A-270Y SRR1050A-221Y Asia-Paci c: 100 60 T (C) T (C) Tel: +886-2 2562-4117 50 Fax: +886-2 2562-4116 80 Europe: 40 60 Tel: +41-41 768 5555 30 Fax: +41-41 768 5510 40 The Americas: 20 Tel: +1-951 781-5500 20 10 Fax: +1-951 781-5700 0 0 www.bourns.com 0 0.9 1.8 2.7 3.6 4.5 0 0.3 0.6 0.9 1.2 1.5 IDC (A) IDC (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. L (H) T (C) L (H) T (C) L (H) L (H) T (C) T (C)