FXO-HC73 Series
RoHS Material Declaration
Material Name
Kovar
Component
Content
(mg)
Content
（ｗｔ％）
(CAS Number)
7440-02-0
7440-48-4
7439-89-6
1344-28-1
14808-60-7
1308-38-9
13463-67-7
1309-48-4
1305-78-8
7440-33-7
7439-98-7
7440-02-0
7440-48-4
7440-57-5
7439-89-6
7440-02-0
7440-48-4
7440-22-4
7440-50-8
7429-90-5
7440-21-3
7440-57-5
7440-22-4
Cover
Base
Nickel (Ni)
5.09
3.63%
Cobalt (Co)
3.15
2.24%
Iron (Fe)
9.47
6.75%
Ceramic
Alumina (Al2O3)
79.178
3.143
56.4%
Silicon Oxide (SiO2)
Chromium Oxide (Cr2O3)
Titanium Oxide (TiO2)
Magnesium Oxide (MgO)
Calcium Oxide (CaO)
Tungsten (W)
2.24%
3.379
2.41%
0.873
0.622%
0.311%
0.212%
8.74%
0.437
0.297
+ Metallization
12.272
0.380
Molybdenum (Mo)
0.27%
+ Nickel Plating Nickel (Ni)
Cobalt (Co)
4.740
3.38%
0.395
0.28%
+ Gold Plating
＋Seal ring
Gold (Au)
0.624
0.445%
4.14%
Iron (Fe)
5.809
Nickel (Ni)
Cobalt (Co)
Silver (Ag)
Copper (Cu)
Aluminum (Al)
Silicon (Si)
Gold (Au)
3.119
2.22%
1.829
1.30%
＋silver solder
2.269
1.62%
0.400
0.285%
0.00150%
0.68%
ＩＣ
ＩＣ
0.0021
0.950
Gold
0.480
0.342%
0.000150%
0.0000499%
1.45%
Adhesive
Silver (Ag)
Epoxy
0.000210
0.0000700
2.04
Crystal Crystal
Electrode
Silicon Dioxide (SiO2)
Silver (Ag)
Nickel (Ni)
Silver (Ag)
Silicon (Si)
14808-60-7
7440-22-4
7440-02-0
7440-22-4
7440-21-3
0.019
0.0135%
0.000113%
0.000264%
0.000089%
100.00%
0.000159
0.00037
0.000125
140.3
Adhesive
TOTAL
Page 9 of 14
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