MATERIAL DECLARATION SHEET Material # 6637S Product Line Precisions Posted Date Compliance Date Since Inception RoHS Compliant Yes No. Construction element Material group Material weight [g] 1 Contact Spring Palmet Alloy 0.00095 2 C-Ring Stainless Steel Alloy 0.009 3 Hex Nut Brass Alloy 1.179 4 Lock Washer Steel Alloy Plating 0.2975 Materials Copper Nickel Palladium Platinum Silver Iron Chromium Nickel Manganese Tungsten Molybdenum Aluminum Copper Silicon Cobalt Copper Zinc Lead Tin Aluminum Manganese Silicon Nickel Carbon Manganese Phosphorus Sulfur Iron Chromium Tin Zinc If applicable Average mass [%] 7440-50-8 7440-05-0 7440-05-3 7440-06-4 7440-22-4 7439-89-6 7440-47-3 7440-02-0 7439-96-5 7440-33-7 7439-98-7 7429-90-5 7440-50-8 7440-51-3 7440-48-4 7440-50-8 7440-66-6 7439-92-1 7440-31-5 7429-90-5 7439-96-5 7440-21-3 7440-02-0 7440-11-0 7439-98-5 7723-14-0 7704-39-9 7439-89-6 7440-47-3 7440-31-5 7440-66-6 0-20% 0-20% 40-60% 0-20% 20-40% 48-89% 18% 0-22% 0-15% 0-4% 0-4% 0-2% 0-4% 0-5% 0-5% 55.5-86% 13.90-42.5% .00-3.7% .00-1.2% .00-2.3% .00-3.5% .00-1.5% .00-.02% 0.51% 0.75% 0.02% 0.025% 98.695% 0.1% 0.64% 100% CAS Sum [%] 0.0043% 0.041% 5.361% 1.352% 5 Washer Stainless Steel Alloy 0.00153 6 Washer Stainless Steel Alloy 0.01 7 Washer Stainless Steel Alloy 0.01 8 Cover Dially Phthalate 1.93 Plating Terminal 9 11 Termination Ink Leaded Brass Alloy 0.137 Ink 0.0005 12 Modified Ink Ink 0.003 13 Conductive Epoxy BCC 0.0004 14 Ink Ink 0.0003 Headquarters Riverside CA Iron Chromium Manganese Nickel Silicon Iron Chromium Manganese Nickel Silicon Iron Chromium Manganese Nickel Silicon Antimony Trioxide Aluminum Hydroxide Diallyl Phthalate Glass Fiber Gold Copper Lead Tin Zinc Formaldehyde Polymer with Phenol & Methyl phenol 2-Ethyl Acetate Silver 7439-89-6 7440-47-3 7439-96-3 7440-02-0 7440-21-3 7439-89-6 7440-47-3 7439-96-3 7440-02-0 7440-21-3 7439-89-6 7440-47-3 7439-96-3 7440-02-0 7440-21-3 1309-64-4 21645-51-2 ****** 65997-17-3 7440-57-5 7440-50-8 7439-92-1 7440-31-5 7440-66-6 70% 18% 2% 9% 1% 70% 18% 2% 9% 1% 70% 18% 2% 9% 1% <5% <20% Remainder <50% >90.00% 55-72% 0-3.5% 0-1% 35-45% 9039-25-2 <20% 124-17-4 7440-22-4 <30% <50% Amorphous Silica Carbon Silver Phenolic Resin Bisphenol A Polyglycidyl Ether Butyl Glydicyl Ether Silver Amorphous Silica Carbon Silver Phenolic Resin Nickel 7631-86-9 7440-44-0 7440-22-4 ********* <3% 20% <42% <66% 25068-38-6 27% 2426-08-6 7440-22-4 7631-86-9 7440-44-0 7440-22-4 ********* 7440-02-0 9% 64% <3% 20% <42% <66% 8.90 www.bourns.com 0.0069% 0.045% 0.045% 0.878% 0.622% 0.0022% 0.0136% 0.0018% 0.0014% page 2 of 3 15 Shaft Stainless Steel Alloy 12.84 16 C-Ring Stainless Steel Alloy 0.009 17 Contact Spring Palmet Alloy 0.00095 18 Rotor PBT 1.6 19 Housing PBT 2.75 Zinc Coating Aluminum Coating Total weight Headquarters Riverside CA Nickel Chromium Iron Manganese - Fume Manganese - Compounds Silicon Iron Chromium Nickel Manganese Tungsten Molybdenum Aluminum Copper Silicon Cobalt Copper Nickel Palladium Platinum Silver Glass Antimony Oxide PBT Glass Antimony Oxide PBT Aluminum Iron Lead Magnesium Sulfur Zinc Zinc Aluminum 7440-02-0 7440-47-3 1309-37-1 7439-96-5 7439-96-5 7440-21-3 7439-89-6 7440-47-3 7440-02-0 7439-96-5 7440-33-7 7439-98-7 7429-90-5 7440-50-8 7440-51-3 1917-33-5 7440-50-8 7440-05-0 7440-05-3 7440-06-4 7440-22-4 65997-17-3 1309-64-4 ************ 65997-17-3 1309-64-4 ************ 7429-90-5 7439-89-6 7439-92-1 7439-98-5 7704-34-9 7440-66-6 7440-66-6 7429-90-5 8.90 Balance 18.30 1.80 1.00 48-89% 18% 0-22% 0-15% 0-4% 0-4% 0-2% 0-4% 0-5% 0-5% 0-20% 0-20% 40-60% 0-20% 20-40% 10-30% 1-5% Max 65-89% 10-30% 1-5% 65-89% 93% 5.5% 0.7% 0.4% 0.4% 0.3% Surface Plating Surface Plating 58.382% 0.041% 0.0043% 7.28% 12.50% 21.993 www.bourns.com page 3 of 3