Abstract: An electronic device includes a first conductive polymer layer sandwiched between a first external metal foil electrode and a first internal metal foil electrode, a second conductive polymer layer sandwiched between a second internal metal foil electrode and a second external metal foil electrode, a layer of fiber-reinforced epoxy resin bonding the first and second internal electrodes together, a first terminal providing electrical contact between the first internal electrode and the second external electrode, and a second terminal providing electrical contact between the second internal electrode and the first external electrode. In a preferred embodiment, the polymer layers exhibit PTC behavior, and the terminals are formed by a solder layer applied over a plated layer of conductive metal. Insulative layers are preferably provided on the external electrodes, and located so as to insulate the first and second terminals from each other.

Abstract: An electronic device has three conductive polymer layers sandwiched between two external electrodes and two internal electrodes. The electrodes are staggered to create a first set of electrodes, in contact with a first terminal, alternating with a second set of electrodes in contact with a second terminal.

Abstract: An electronic device has three conductive polymer layers sandwiched between two external electrodes and two internal electrodes. The electrodes are staggered to create a first set of electrodes, in contact with a first terminal, alternating with a second set of electrodes in contact with a second terminal.