MATERIAL DECLARATION SHEET Material Number PWR163S-25-RC Product Line Power Resistor Compliance Date RoHS Compliant No. 1 2 3 4 5 yes Construction Element (subpart) Housing Back Plate Terminal Solder Substrate Headquarters Riverside CA MSL Homogeneous Material Epoxy Molding Compound N/A Material weight [g] 0.15 Copper 0.32 Plating 0.002 Copper 0.11 Plating 0.007 Metal Alumina 0.02 0.078 if applicable Materials Mass % Material Mass % of total unit wt. Silica 14808-60-7 53 11.23 Epoxy Resin 29690-82-2 25 5.30 Homogeneous Material/ Substances CASRN Phenolic Resin 9003-35-4 15 3.18 Antimony trioxide 1309-64-4 3 0.64 Brominated epoxy resin 40039-93-8 3 0.64 Carbon Black 1333-86-4 1 0.21 Copper 7440-50-8 99.9 46.67 0.1 0.05 Other Nickel 7440-02-0 100 0.22 Copper 7440-50-8 99.95 16.05 0.05 0.001 Other Tin 7440-31-5 100 1.02 Tin 7440-31-5 96.5 2.82 Silver 7440-22-4 3 0.09 Copper 7440-50-8 0.5 0.01 Aluminum Oxide 1344-28-1 88 10.02 Manganese dioxide 1313-13-9 3.5 0.40 Titanium-dioxide 13463-67-7 3.5 0.40 Chromium(III)oxide 1308-38-9 2.5 0.28 Quartz (Silicon dioxide) 14808-60-7 2.5 0.28 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society Subpart mass of total wt. (%) 21.20 46.72 0.22 16.06 1.02 2.92 11.39 page 1 of 2 MATERIAL DECLARATION SHEET 6 Term Ink Ink 0.002 Silver 7440-22-4 96 0.28 Lead-Oxide 1309-60-0 1 0.003 Dibismuth-trioxide 1304-76-3 1 0.003 Platinum 7440-06-4 1 0.003 1 0.003 Palladium 7440-05-3 25 0.03 Boraluminosilicate glass Trimethylpentanediol monoisobutyrate Silver 65997-17-3 30 0.04 25265-77-4 25 0.03 7440-22-4 15 0.02 Ruthenium dioxide 12036-10-1 1 0.001 Manganese dioxide 1313-13-9 1 0.001 Confidential Substances 7 8 Resistor Paste Encapsulant Ink Ink 0.0008 0.0005 Alumina 1344-28-1 3 0.004 Lead-monoxide 1317-36-8 56.63 0.04 Silicon dioxide 7631-86-9 27.89 0.02 Diboron-trioxide 1303-86-2 9.15 0.01 Chromium(III)oxide 1308-38-9 3.15 0.002 3.15 0.002 Confidential Substances Total weight 0.29 0.12 0.07 0.685 This Document was updated on: January 5, 2009 Important remarks: 1. It is the responsibility of the user to verify they are accessing the latest version. 2. RoHS exemptions: 5 – lead in glass of cathode ray tubes, electronic components & fluorescent tubes. Headquarters Riverside CA www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 2 of 2