Ceramic chip fuses with multiple current carrying elements and a

Details Ceramic chip fuses with multiple current carrying elements and a Ceramic chip fuses with multiple current carrying elements and a

1995-08-11

1998-03-10

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337292, 337283, H01H 8504

Patent

active

057266212

ABSTRACT:
A subminiature circuit protector includes a plurality of layers of ceramic material in a laminate structure, each layer bearing a fuse element. The ends of laminate structure are coated with electrically conductive end terminations. The fuse elements of the layers may be connected in parallel, with fuse elements on each layer connecting to both end terminations, or interconnected in series from one end termination to the other. Each of the fuse elements of the individual layers may comprise two or more individual fuse elements connected in series or in parallel. A method for manufacturing the circuit protector in accordance with the invention includes the steps of printing a multiplicity of fuse elements on a plurality of substrates, stacking the substrates to form a laminate structure, cutting the laminate into individual units, and coating the opposite ends of the units with electrically conductive material to form end terminations.

REFERENCES:
patent: 4300115 (1981-11-01), Ansell
patent: 4991283 (1991-02-01), Johnson
patent: 5128749 (1992-07-01), Hornback
patent: 5224261 (1993-07-01), Morrill
patent: 5312674 (1994-05-01), Haertling
patent: 5378927 (1995-01-01), McAllister
patent: 5408053 (1995-04-01), Young
patent: 5432378 (1995-07-01), Whitney
patent: 5440802 (1995-08-01), Whitney
patent: 5475262 (1995-12-01), Wang
patent: 5560851 (1996-10-01), Thimm

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