MATERIAL DECLARATION SHEET Material Number Product Line Compliance Date RoHS Compliant TC 33 (1KΩ < RC < 50KΩ) Trimmer 8-16-2004 Yes MSL No. Construction Element (Subpart) Homogeneous Material 1 SUBSTRATE Aluminum oxide 2 ELECTRODE Silver Palladium 3 4 RESISTANCE ELEMENT TERMINAL CONNECTOR Headquarters Riverside CA METAL GLAZED COATING 96.5Sn-3Ag-0.5Cu Homogeneous Material Material Weight (g) 0.0125760 0.0003668 0.0001179 0.0000393 0.0000006 0.000003 0.000003 0.000006 0.0003866 0.0000008 Substance Aluminum oxide Silicon dioxide Magnesium oxide Calcium oxide Lead oxide Bismuth trioxide Copper Palladium Silver Boron oxide CASRN 1344-28-1 14808-60-7 1309-48-4 1305-78-8 1317-36-8 1304-76-3 7440-50-8 7440-05-3 7440-22-4 1303-86-2 Material Mass % 96 2.8 0.9 0.3 0.15 0.75 0.75 1.5 96.65 0.2 Material Mass % of total unit wt. 40.7808 1.1894 0.3823 0.1275 0.0019 0.0098 0.0098 0.0195 1.2564 0.0026 0.000096 Lead oxide 1317-36-8 15.92 0.3120 0.000003 Bismuth trioxide 1304-76-3 0.50 0.0098 0.000018 Boron oxide 1303-86-2 2.99 0.0586 0.0000078 Manganese oxide 1313-13-9 1.29 0.0253 0.0002802 Ruthenium dioxide 12036-10-1 46.47 0.9108 0.000198 Glass 65997-18-4 32.83 0.6435 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 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 1.96 3.24 MATERIAL DECLARATION SHEET TERMINALS SPCC 5 GROUND PLATING SURFACE PLATING Nickel Tin 6 MOVING CONTACT Stainless Steel 7 INSULATION ACRYL 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 0.0000035 0.0000001 Total weight Iron Manganese Carbon Other Nickel Tin Nickel Iron Manganese Chromium Silicon Other ACRYL Other organophosphorus compounds 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 0.48 0.14 1.61 3.52 8.0 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 Trade secret 0.39 0.0114 Other organotin compounds Trade Secret 0.01 0.0003 0.0308430 This Document was updated on: 8-15-2011 Important remarks: It is the responsibility of the user to verify they are accessing the latest version. 2. RoHS exemption – Please see Certificate of Compliance for exemptions. 1. 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