Surface mountable electrical device comprising a PTC element and

Details Surface mountable electrical device comprising a PTC element and Surface mountable electrical device comprising a PTC element and

1996-12-19

1999-05-25

Gellner, Michael L.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338313, 337183, 337153, 337184, H01C 710

Patent

active

059072725

ABSTRACT:
Circuit protection device having a PTC element in series with a fusible element. The device includes a PTC element having first and second electrodes in electrical contact with the PTC element. An insulating layer is disposed on the first and second electrodes. Portions of the insulating layer are removed to form first and second contact points. A first conductive layer is in electrical contact with the first electrode and wraps around the PTC element. A portion of the first conductive layer forms a fusible element. A second conductive layer is in electrical contact with the second electrode. The wrap-around configuration of the device allows for an electrical connection to be made to both electrodes from the same side of the electrical device. The wrap-around configuration also permits current to flow in series through the PTC element and the fusible element for added protection from overcurrent conditions.

REFERENCES:
patent: 3708720 (1973-01-01), Whitney et al.
patent: 4031497 (1977-06-01), Ozawa
patent: 4096464 (1978-06-01), Dennis et al.
patent: 4626818 (1986-12-01), Hilgers
patent: 4654510 (1987-03-01), Umeya et al.
patent: 4728779 (1988-03-01), Kotani et al.
patent: 4780598 (1988-10-01), Fahey et al.
patent: 4788519 (1988-11-01), Swanson
patent: 4792781 (1988-12-01), Takahashi et al.
patent: 4808965 (1989-02-01), Cenky
patent: 4903295 (1990-02-01), Shannon et al.
patent: 4912450 (1990-03-01), Yoneda et al.
patent: 4924205 (1990-05-01), Caporali et al.
patent: 4959505 (1990-09-01), Ott
patent: 4967176 (1990-10-01), Horsma et al.
patent: 4992771 (1991-02-01), Caporali et al.
patent: 5208723 (1993-05-01), Jenne
patent: 5210516 (1993-05-01), Shikama et al.
patent: 5229739 (1993-07-01), Oh et al.
patent: 5239163 (1993-08-01), Brouwers
patent: 5534843 (1996-07-01), Tsunoda et al.
patent: 5663702 (1997-09-01), Shaw, Jr. et al.
Photographs of device manufactured by Rachem of California, sold as Catalog No. TR600-ISO.

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