headquarters riverside ca www.bourns.com page 1 of 2 casrn: cas registry number ? is a registered trademark of the american chemical society material declaration sheet material number PWR163S-25-RC product line power resistor compliance date rohs compliant yes msl n/a no. construction element (subpart) homogeneous material material weight [g] homogeneous material/ substances casrn if applicable materials mass % material mass % of total unit wt. subpart mass of total wt. (%) silica 14808-60-7 53 11.23 epoxy resin 29690-82-2 25 5.30 phenolic resin 9003-35-4 15 3.18 antimony trioxide 1309-64-4 3 0.64 brominated epoxy resin 40039-93-8 30.64 1 housing epoxy molding compound 0.15 carbon black 1333-86-4 1 0.21 21.20 copper 7440-50-8 99.9 46.67 copper 0.32 other 0.1 0.05 46.72 2 back plate plating 0.002 nickel 7440-02-0 100 0.22 0.22 copper 7440-50-8 99.95 16.05 copper 0.11 other 0.05 0.001 16.06 3 terminal plating 0.007 tin 7440-31-5 100 1.02 1.02 tin 7440-31-5 96.5 2.82 silver 7440-22-4 3 0.09 4 solder metal 0.02 copper 7440-50-8 0.5 0.01 2.92 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 5 substrate alumina 0.078 quartz (silicon dioxide) 14808-60-7 2.5 0.28 11.39
headquarters riverside ca www.bourns.com page 2 of 2 casrn: cas registry number ? is a registered trademark of the american chemical society material declaration sheet 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 6 term ink ink 0.002 confidential substances 1 0.003 0.29 palladium 7440-05-3 25 0.03 boraluminosilicate glass 65997-17-3 30 0.04 trimethylpentanediol monoisobutyrate 25265-77-4 25 0.03 silver 7440-22-4 15 0.02 ruthenium dioxide 12036-10-1 1 0.001 manganese dioxide 1313-13-9 1 0.001 7 resistor paste ink 0.0008 alumina 1344-28-1 3 0.004 0.12 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 8 encapsulant ink 0.0005 confidential substances 3.15 0.002 0.07 total weight 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.
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