Patent ID: 8081057

Claim:
A current protection device comprising: a substrate having an upper portion, a lower portion, and a middle layer between said upper portion and said lower portion; a first fusing layer installed between said upper portion and said middle layer; a second fusing layer installed between said lower portion and said middle layer; a first anti-electric arc layer mounted on an outer surface of said first fusing layer; a second anti-electric layer mounted on an outer surface of said second fusing layer; a first cavity which is smaller than said first fusing layer and formed in said upper portion of said substrate and has a first opening which is opposite to a surface of said first anti-electric arc layer, said first opening being smaller than said surface of said first anti-electric arc layer; a second cavity which is smaller than said second fusing layer and formed in said lower portion of said substrate and has a second opening which is opposite to a surface of said second anti-electric arc layer, said second opening being smaller than said surface of said second anti-electric arc layer; a first end electrode installed at a first end of said substrate and having a silver layer, a nickel layer and a tin layer; and a second end electrode installed at a second end of said substrate and having a silver layer, a nickel layer and a tin layer.