A PTC thermistor module for a temperature control device may include at least one PTC thermistor element. The PTC thermistor element may include an upper side and an underside facing away from the upper side. The upper side and on the underside may be respectively applied in a heat-exchanging manner with a heat-conducting plate. An edge side, connecting the upper side and the underside with one another in an edge-side manner, of at least one of the PTC thermistor elements, may be applied to a heat-conducting element, which has a thermal conductivity of at least 5 W/mK. A temperature control device may include at least one such PTC thermistor module.

A temperature-sensitive battery connector is disclosed. The connector can include a connector body and at least one conductor mounted to the connector body and configured to convey a current signal used to measure voltage from a battery pack or battery cell to a battery management system (BMS). The connector can include a thermal switching device mounted to the connector body and thermally coupled to a terminal of a battery pack or a battery cell. The thermal switching device can be configured to provide an overtemperature signal to the BMS by changing or interrupting a current conducted by at least one conductor when a temperature of the battery pack or battery cell exceeds a threshold temperature.

Approaches provided herein include a protection device assembly having a protection component and a first electrode layer extending along a first main side of the protection component. The first electrode layer may include a first section separated from a second section by a first gap. The assembly may further include a second electrode layer extending along a second main side of the protection component, the second electrode layer including a third section separated from a fourth section by a second gap, wherein the first gap is aligned with the second gap. The assembly may further include a first insulation layer disposed over the first electrode layer, and a second insulation layer disposed over the second electrode layer. The assembly may further include a solder pad extending around an end of the protection component, the solder pad further extending over the first insulation layer and the second insulation layer.

A ceramic multi-layer component and a method for producing a ceramic multi-layer component are disclosed. In an embodiment a ceramic multi-layer component includes a stack with ceramic layers and electrode layers arranged between them, wherein the ceramic layers and the electrode layers are arranged above one another along a stacking direction, wherein at least one first electrode layer extends along a first main extension direction from a first end region to a second end region of the first electrode layer, and wherein the at least one first electrode layer has a current-carrying capacity that decreases along the first main extension direction.

An over-current protection device comprises first and second electrode layers and a PTC material layer laminated therebetween. The PTC material layer comprises a polymer, an electrically conductive filler and a metal compound filler. The PTC material layer comprises the polymer of 50-70% by volume, and the electrically conductive filler and the metal compound filler are distributed in the polymer. The metal compound filler has a particle size D50 of 2-15 m and 5-20% by volume and is selected from the group consisting of aluminum nitride, aluminum hydroxide, aluminum oxide, titanium oxide and zirconium oxide. The over-current protection device has a resistivity of 0.7-1.2 .Math.cm.

A PPTC device is provided. The PPTC device may include a first electrode and a second electrode, disposed opposite the first electrode. The PPTC device may include a PPTC layer, disposed between the first electrode and the second electrode, the PPTC layer comprising a polymer matrix formed from a thermoplastic polyurethane (TPU) material.

A circuit protection device including a primary fuse, and a positive temperature coefficient (PTC) device and a secondary fuse electrically connected in series with one another and in parallel with the primary fuse, the secondary fuse formed of a quantity of solder disposed on a dielectric surface, wherein the dielectric surface exhibits a de-wetting characteristic relative to the solder such that, when the solder is melted, the solder draws away from the dielectric surface to create a galvanic opening.

A PTC device comprises a laminated substrate, a first PTC material layer, a second PTC material layer, a first metal layer and a second metal layer. The laminated substrate comprises a first conductive layer, a second conductive layer and an insulating layer laminated between the first and second conductive layers. The first PTC material layer is disposed on the first conductive layer, and the second PTC material layer is disposed on the second conductive layer. The first metal layer is disposed on the first PTC material layer, and the second metal layer is disposed on the second PTC material layer. The insulating layer has a through hole filled with PTC material to form a PTC connecting member of which one end connects to the first PTC material layer and another end connects to the second PTC material layer.

A PPTC assembly may include a PPTC component, having a trip temperature, and further comprising a first temperature coefficient of resistance, in a low temperature range below the trip temperature. The PPTC assembly may include a resistive component, disposed in electrical contact with the PPTC component on a first side of the PPTC component, the resistive component comprising an electrical conductor, and having a second temperature coefficient of resistance in the low temperature range, less than the first temperature coefficient of resistance. The PPTC component may include a first electrode, electrically coupled to the first side of the PPTC component, and a second electrode, electrically coupled to the second side of the PPTC component, where the PPTC component and the resistive component are arranged in electrical series between the first electrode and the second electrode.

A polymeric positive temperature coefficient (PPTC) device including a PPTC body, a first electrode disposed on a first side of the PPTC body, and a second electrode disposed on a second side of the PPTC body, wherein the PPTC body is formed of a PPTC material that includes a polymer matrix and a conductive filler, wherein the conductive filler defines 20%-39% by volume of the PPTC material.