MATERIAL DECLARATION SHEET Material Number Product Line Compliance Date RoHS Compliant 3386 (250Ω - 51KΩ) LF series Trimmer 2-17-2005 Yes DC 509 MSL No. Construction Element (Subpart) Homogeneous Material Material Weight (g) 1 Contact Spring Ni/Ag 0.0059 2 Housing PBT 0.333 3 Rotor PBT 0.073 4 Potting Epoxy 0.092 5 O-ring Rubber 0.005 6 Substrate Ceramic 0.144 Headquarters Riverside CA Homogeneous Material Substance Copper Nickel Zinc Polybutylene terephthalate Glass fiber Brominated flame retardant Antimony trioxide Polybutylene terephthalate Glass fiber Brominated flame retardant Antimony trioxide Epoxy resin Antimony trioxide Silicon dioxide Aluminum oxide Kaolin clay Magnesium alumino silicate Silicon Rubber Aluminum oxide Silicon dioxide Magnesium oxide Calcium oxide CASRN 7440-50-8 7440-02-0 7440-66-6 30965-26-5 65997-17-3 Trade secret 1309-64-4 30965-26-5 65997-17-3 Trade secret 1309-64-4 25085-99-8 1309-64-4 7440-21-3 1344-28-1 1332-58-7 1302-88-1 63394-02-5 1344-28-1 7631-86-9 1309-48-4 1305-78-8 Material Mass % 65 18 17 49 35 10 6 49 35 10 6 49 11 11 11 9 9 100 96 2 1 1 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society Material Mass % of total unit wt. 0.492614001 0.136416185 0.128837508 20.95953757 14.97109827 4.277456647 2.566473988 4.594733462 3.281952473 0.937700706 0.562620424 5.790622993 1.299935774 1.299935774 1.299935774 1.063583815 1.063583815 0.642260758 17.75722543 0.369942197 0.184971098 0.184971098 Subpart mass of total wt. (%) 0.76 42.77 9.38 11.82 0.64 18.50 page 1 of 2 MATERIAL DECLARATION SHEET 7 Termination Ink Ink 0.002 8 Resistive Ink Ink 0.0076 9 Terminals Copper 0.1102 0.0058 Total Weight 0.7785 Silver Palladium Copper oxide 7440-22-4 7440-05-3 1317-39-1 94 3 1.2 0.240976236 0.007450225 0.003082852 Bismuth trioxide 1304-76-3 2 0.00539499 Ruthenium Dioxide Calcium silicate borate glass Silver Titanium dioxide Manganese dioxide Cuprous oxide Copper Tin Plating 12036-10-1 59794-15-9 7440-22-4 13463-67-7 1313-13-9 1317-39-1 7440-50-8 7440-31-5 35 46 7 5 6 1 100 100 0.341682723 0.449068722 0.068336545 0.048811818 0.058574181 0.009762364 14.1554271 0.7450225 0.26 0.98 14.90 This Document was updated on: 11-15-2011 Important remarks: 1. It is the responsibility of the user to verify they are accessing the latest version. Headquarters Riverside CA www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 2 of 2