MATERIAL DECLARATION SHEET Material Number Product Line WS-Series (scroll down for specific model) Wire-wound Anti Surge Fixed Resistors Compliance Date RoHS Compliant No . Construction Element(subpart) Compliant MSL Homogeneous Material Substrate (Ceramic) 1 2 2014-07-28 WS-1M 3 Resistive layer (Ni-Cr Alloy ) End cap N/A Material weight [mg] 235.70 3.48 86.35 4 Lead wire 173.45 5 Coating 64.50 Total weight Headquarters Riverside CA Homogeneous Material\ Substances CASRN if applicable Materials Mass % Calcium oxide 1304-28-5 Potassium oxide 12136-45-7 69.20 24.60 0.94 3.16 1.81 0.29 Nickel 7440-02-0 80 Chromium 7440-47-3 Copper 7440-50-8 Tin 7440-31-5 20 4.38 2.92 Iron 7439-89-6 92.70 Copper 7440-50-8 Tin 7440-31-5 Epoxy Resin 26875-67-2 97.00 3.00 58.00 26.00 16.00 Aluminum oxide 1344-28-1 Silicon dioxide 14808-60-7 Magnesium oxide 1309-48-4 Barium oxide 1305-78-8 Calcium carbonate 471-34-1 Titanium dioxide 13463-67-7 Material Mass % of total unit wt. 28.95 10.29 0.39 1.32 0.76 0.12 0.49 0.12 0.67 0.45 14.21 29.86 0.93 6.641 2.977 1.832 Subpart mass of total wt. (%) 41.83 0.61 15.32 30.79 11.45 563.48 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 1 of 7 MATERIAL DECLARATION SHEET No . Construction Element(subpart) Substrate (Ceramic) 1 2 Homogeneous Material WS-1A WS-2M 3 Resistive layer (Ni-Cr Alloy ) End cap Material weight [mg] Homogeneous Material\ Substances 280.9 5.5 148.2 4 Lead wire 191.0 5 Coating 109.0 Total weight Headquarters Riverside CA CASRN if applicable Aluminum oxide 1344-28-1 Silicon dioxide 14808-60-7 Magnesium oxide 1309-48-4 Barium oxide 1305-78-8 Calcium oxide 1304-28-5 Potassium oxide 12136-45-7 Nickel 7440-02-0 Chromium 7440-47-3 Copper 7440-50-8 Tin 7440-31-5 Iron 7439-89-6 Copper 7440-50-8 Tin 7440-31-5 Epoxy Resin 26875-67-2 Calcium carbonate 471-34-1 Titanium dioxide 13463-67-7 69.20 24.60 0.94 3.16 1.81 0.29 80 20 4.38 2.92 Material Mass % of total unit wt. 26.46 9.41 0.36 1.21 0.69 0.11 0.60 0.15 0.88 0.59 92.70 97.00 3.00 18.70 25.22 0.78 58.00 26.00 16.00 8.61 3.86 2.37 Materials Mass % Subpart mass of total wt. (%) 38.24 0.75 20.17 26.00 14.84 734.6 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 2 of 7 MATERIAL DECLARATION SHEET No . Construction Element(subpart) Substrate (Ceramic) 1 2 Homogeneous Material WS-2A WS-3M 3 Resistive layer (Ni-Cr Alloy ) End cap Material weight [mg] Homogeneous Material\ Substances 421.26 6.25 172.47 4 Lead wire 225.73 5 Coating 222.78 Total weight Headquarters Riverside CA CASRN if applicable Materials Mass % Material Mass % of total unit wt. 27.81 9.88 0.38 1.27 0.73 0.12 Calcium oxide 1304-28-5 Potassium oxide 12136-45-7 69.21 24.58 0.94 3.16 1.81 0.29 Nickel 7440-02-0 80 0.48 Chromium 7440-47-3 Copper 7440-50-8 Tin 7440-31-5 20 4.38 2.92 0.12 0.72 0.48 92.71 97.00 3.00 15.25 20.88 0.65 58.00 26.00 16.00 12.32 5.52 3.40 Aluminum oxide 1344-28-1 Silicon dioxide 14808-60-7 Magnesium oxide 1309-48-4 Barium oxide 1305-78-8 Iron 7439-89-6 Copper 7440-50-8 Tin 7440-31-5 Epoxy Resin 26875-67-2 Calcium carbonate 471-34-1 Titanium dioxide 13463-67-7 Subpart mass of total wt. (%) 40.18 0.60 16.45 21.53 21.24 1048.49 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 3 of 7 MATERIAL DECLARATION SHEET No . Construction Element(subpart) Substrate (Ceramic) 1 2 Homogeneous Material WS-3A WS-5M 3 Resistive layer (Ni-Cr Alloy ) End cap Material weight [mg] Homogeneous Material\ Substances 925.0 4.0 234.4 4 Lead wire 235.0 5 Coating 188.0 Total weight Headquarters Riverside CA CASRN if applicable Aluminum oxide 1344-28-1 Silicon dioxide 14808-60-7 Magnesium oxide 1309-48-4 Barium oxide 1305-78-8 69.20 24.60 0.94 Material Mass % of total unit wt. 40.35 14.34 0.55 1.84 1.06 0.17 Materials Mass % Calcium oxide 1304-28-5 Potassium oxide 12136-45-7 3.16 1.81 0.29 Nickel 7440-02-0 80.00 Chromium 7440-47-3 Copper 7440-50-8 20.00 19.70 0.20 0.05 2.91 74.00 3.80 0.20 2.30 97.00 3.00 10.93 0.56 0.03 0.34 14.37 0.44 58.00 26.00 16.00 6.87 3.08 1.90 Tin 7440-31-5 Iron 7439-89-6 Silicon 7440-21-3 Oxygen 39297-19-3 Epoxy Resin 7440-50-8 Calcium carbonate 7440-31-5 Titanium dioxide 26875-67-2 Aluminum oxide 471-34-1 Silicon dioxide 13463-67-7 Subpart mass of total wt. (%) 58.31 0.25 14.78 14.81 11.85 1586.4 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 4 of 7 MATERIAL DECLARATION SHEET No . Construction Element(subpart) Substrate (Ceramic) 1 2 Homogeneous Material WS-5A 3 Resistive layer (Ni-Cr Alloy ) End cap Material weight [mg] Homogeneous Material\ Substances 2736.8 77.2 199.4 4 Lead wire 319.0 5 Coating 1038.0 Total weight Headquarters Riverside CA CASRN if applicable Aluminum oxide 1344-28-1 Silicon dioxide 14808-60-7 Magnesium oxide 1309-48-4 Barium oxide 1305-78-8 69.20 24.60 0.94 Material Mass % of total unit wt. 43.33 15.40 0.59 1.98 1.13 0.18 Materials Mass % Calcium oxide 1304-28-5 Potassium oxide 12136-45-7 3.16 1.81 0.29 Nickel 7440-02-0 80.00 Chromium 7440-47-3 Copper 7440-50-8 20.00 19.70 1.41 0.35 0.90 74.00 3.80 0.20 2.30 97.00 3.38 0.17 0.01 0.10 7.08 3.00 58.00 26.00 16.00 0.22 13.78 6.17 3.80 Tin 7440-31-5 Iron 7439-89-6 Silicon 7440-21-3 Oxygen 39297-19-3 Epoxy Resin 7440-50-8 Calcium carbonate 7440-31-5 Titanium dioxide 26875-67-2 Aluminum oxide 471-34-1 Silicon dioxide 13463-67-7 Subpart mass of total wt. (%) 62.63 1.76 4.56 7.30 23.75 4370.4 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 5 of 7 MATERIAL DECLARATION SHEET No . Construction Element(subpart) Substrate (Ceramic) 1 2 Homogeneous Material WS-7M 3 Resistive layer (Ni-Cr Alloy ) End cap Material weight [mg] Homogeneous Material\ Substances 2736.8 77.2 224.5 4 Lead wire 319.0 5 Coating 1038.0 Total weight Headquarters Riverside CA CASRN if applicable Aluminum oxide 1344-28-1 Silicon dioxide 14808-60-7 Magnesium oxide 1309-48-4 Barium oxide 1305-78-8 69.20 24.60 0.94 Material Mass % of total unit wt. 43.09 15.32 0.59 1.97 1.13 0.18 Materials Mass % Calcium oxide 1304-28-5 Potassium oxide 12136-45-7 3.16 1.81 0.29 Nickel 7440-02-0 80.00 Chromium 7440-47-3 Copper 7440-50-8 20.00 19.70 1.41 0.35 1.01 74.00 3.80 0.20 2.30 97.00 3.78 0.19 0.01 0.12 7.04 3.00 58.00 26.00 16.00 0.22 13.69 6.14 3.78 Tin 7440-31-5 Iron 7439-89-6 Silicon 7440-21-3 Oxygen 39297-19-3 Epoxy Resin 7440-50-8 Calcium carbonate 7440-31-5 Titanium dioxide 26875-67-2 Aluminum oxide 471-34-1 Silicon dioxide 13463-67-7 Subpart mass of total wt. (%) 62.26 1.76 5.11 7.26 23.61 4395.5 www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 6 of 7 MATERIAL DECLARATION SHEET No . Construction Element(subpart) Substrate (Ceramic) 1 2 Homogeneous Material WS-7A WS-8M 3 Resistive layer (Ni-Cr Alloy ) End cap Material weight [mg] Homogeneous Material\ Substances 3355.00 17.65 315.10 4 Lead wire 319.00 5 Coating 1115.20 Total weight CASRN if applicable Aluminum oxide 1344-28-1 Silicon dioxide 14808-60-7 Magnesium oxide 1309-48-4 Barium oxide 1305-78-8 69.20 24.60 0.94 Material Mass % of total unit wt. 45.33 16.11 0.62 2.07 1.18 0.19 Materials Mass % Calcium oxide 1304-28-5 Potassium oxide 12136-45-7 3.16 1.81 0.29 Nickel 7440-02-0 80.00 Chromium 7440-47-3 Copper 7440-50-8 20.00 4.38 0.28 0.07 0.27 Tin 7440-31-5 Iron 7439-89-6 2.92 92.70 97.00 0.18 5.70 6.04 3.00 58.00 26.00 16.00 0.19 12.63 5.66 3.48 Epoxy Resin 7440-50-8 Calcium carbonate 7440-31-5 Titanium dioxide 26875-67-2 Aluminum oxide 471-34-1 Silicon dioxide 13463-67-7 Subpart mass of total wt. (%) 65.50 0.35 6.15 6.23 21.77 5121.95 Document updated: May 28, 2015 Headquarters Riverside CA www.bourns.com CASRN: CAS Registry Number® is a Registered Trademark of the American Chemical Society page 7 of 7