MATERIAL DECLARATION SHEET Material Number Product Line Compliance Date RoHS Compliant 3303 Series Trimmer 8-20-2004 Yes DC 534 MSL No. Construction Element (Subpart) Homogeneous Material Material Weight (g) 1 Substrate Ceramic 0.02116 2 Electrode Silver Alloy 0.0002 3 Resistive Element Ink 0.00046 Headquarters Riverside CA N/A Homogeneous Material Substance Alumina Quartz Magnesium Oxide Calcium Oxide Silver Palladium Platinum Zinc dioxide Lead Oxide Boron Oxide Bismuth Oxide Aluminum Oxide Lead Oxide Ruthenium(IV) Oxide Quartz Aluminum Oxide Boron Oxide Calcium Oxide Zinc Oxide Manganese dioxide Cupric Oxide CASRN 1344-28-1 14808-60-7 1309-48-4 1305-78-8 7440-22-4 7440-05-3 7440-06-4 1314-22-3 1317-36-8 1303-86-2 1304-76-3 1344-28-1 1317-36-8 12036-10-1 14808-60-7 1344-28-1 1303-86-2 1305-78-8 1314-13-2 1313-13-9 1317-38-0 Material Mass % 93 4 2 1 52 31.7 6.8 4.5 1.7 1.1 1.1 1.1 31 29.6 16.9 8.5 4.2 4.2 2.8 1.4 1.4 Material Mass % of total unit wt. 44.2518 1.9033 0.9516 0.4758 0.2339 0.1426 0.0306 0.0202 0.0076 0.0049 0.0049 0.0049 0.3207 0.3062 0.1748 0.0879 0.0434 0.0434 0.0290 0.0145 0.0145 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society Subpart mass of total wt. (%) 47.58 0.45 1.03 page 1 of 2 MATERIAL DECLARATION SHEET 4 Contact Stainless Steel 0.00514 5 Sealing Resin 0.0003 Stainless Steel 0.01465 6 Terminals Plating Total Weight 0.00256 Iron Chromium Nickel Manganese Silicon Carbon Phosphorus Sulfur Polyurethane Methacrylate Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Iron Nickel Tin 7439-89-6 7440-47-3 7440-02-0 7439-96-5 7440-21-3 7440-44-0 7723-14-0 7704-34-9 9009-54-5 18358-13-9 7440-44-0 7439-96-5 7723-14-0 7704-34-9 7440-21-3 7440-47-3 7440-02-0 7439-89-6 7440-02-0 7440-31-5 70.845 18 8 2 1 0.08 0.045 0.03 65 35 0.08 2 0.045 0.03 0.75 18 8 71.095 100 100 8.1885 2.0805 0.9247 0.2312 0.1156 0.0092 0.0052 0.0035 0.4385 0.2361 0.0263 0.6589 0.0148 0.0099 0.2471 5.9298 2.6355 23.4212 2.8783 2.8783 11.56 0.67 38.70 0.04447 This Document was updated on: 4-27-2012 Important remarks: 1. 2. It is the responsibility of the user to verify they are accessing the latest version. Please see RoHS Certificate of Compliance for exemptions used, if any. Headquarters Riverside CA www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 2 of 2