MATERIAL DECLARATION SHEET Material Number Product Line Compliance Date RoHS Compliant TC 33 (RC > 50KΩ) Trimmer 8-16-2004 Yes MSL No. Construction Element (Subpart) Homogeneous Material Material Weight (g) 0.0125760 Substance Aluminum oxide CASRN 1344-28-1 Material Mass % 96 Material Mass % of total unit wt. 40.7808 1 SUBSTRATE Aluminum oxide 0.0003668 0.0001179 Silicon dioxide Magnesium oxide 14808-60-7 1309-48-4 2.8 0.9 1.1894 0.3823 0.0000393 Calcium oxide 1305-78-8 0.3 0.1275 0.0000006 Lead oxide 1317-36-8 0.15 0.0019 0.000003 0.000003 0.000006 0.0003866 Bismuth trioxide Copper Palladium Silver 1304-76-3 7440-50-8 7440-05-3 7440-22-4 0.75 0.75 1.5 96.65 0.0098 0.0098 0.0195 1.2564 0.0000008 0.000246 Boron oxide Lead oxide 1308-86-2 1317-36-8 0.2 41.0 0.0026 0.7995 0.000078 Boron oxide 1308-86-2 13.0 0.2535 0.0001620 0.000114012 Ruthenium dioxide Glass 12036-10-1 65997-18-4 27.0 19.0 0.5265 0.3705 0.0000050 Copper 7440-50-8 0.5 0.0162 0.0000300 Silver 7440-22-4 3 0.0972 0.0009650 Tin 7440-31-5 96.5 3.1266 2 3 4 ELECTRODE RESISTANCE ELEMENT TERMINAL CONNECTOR Headquarters Riverside CA Silver Palladium METAL GLAZED COATING Sn-3Ag-0.5Cu Homogeneous Material www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 1 of 2 Subpart mass of total wt. (%) 42.48 1.30 1.95 3.24 MATERIAL DECLARATION SHEET TERMINALS SPCC 5 8 9 GROUND PLATING SURFACE PLATING Nickel Tin MOVING CONTACT Stainless steel INSULATION ACRYL Total weight 0.0056727 0.0000200 0.0000287 0.0000085 0.0000975 0.0002126 0.0007040 0.0063536 0.0000880 0.0015840 0.0000528 0.0000176 0.0008964 Iron Manganese Carbon Other Nickel Tin Nickel Iron Manganese Chromium Silicon Other ACRYL 7439-89-6 7439-96-5 7440-44-0 7440-02-0 7440-31-5 7440-02-0 7439-89-6 7439-96-5 7440-47-3 7440-21-3 Trade secret 93.92 0.33 .48 0.14 1.61 3.52 8 72.2 1.0 18.0 0.6 0.2 99.6 18.39 0.065 0.094 0.027 0.315 0.689 2.2824 20.5986 0.2853 5.1354 0.1712 0.0571 2.9083 0.0000035 Other organophosphorus compounds Trade secret 0.39 0.0114 0.0000001 Other organotin compounds Trade secret 0.01 0.0003 0.0308400 This Document was updated on: 8-15-2011 Important remarks: 1. 2. It is the responsibility of the user to verify they are accessing the latest version. RoHS exemption – Please see Certificate of Compliance for exemptions. Headquarters Riverside CA www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 2 of 2 19.58 28.53 2.92