A metal oxide varistor (MOV) device including a MOV chip, electrically conductive first and second electrodes disposed on opposite sides of the MOV chip, and electrically conductive first and second leads connected to the first and second electrodes, respectively, wherein the first and second electrodes are formed of a material having a melting point greater than 1100 degrees Celsius.

In an embodiment a thermal protection device includes a housing, a varistor partly embedded in the housing, wherein the housing electrically insulates the varistor, and wherein the varistor includes a partly uninsulated contact surface, an inner wall of insulating material arranged adjacent to the contact surface of the varistor, a window in the inner wall configured to allow an electrical connection of the contact surface of the varistor in an operational state of the thermal protection device and a moveable insulation block configured to cover the window in the inner wall to insulate the varistor in a region of the window of the inner wall in a fault state of the thermal protection device.

In an embodiment a thermal protection device includes a housing, a varistor partly embedded in the housing, wherein the housing electrically insulates the varistor, and wherein the varistor includes a partly uninsulated contact surface, an inner wall of insulating material arranged adjacent to the contact surface of the varistor, a window in the inner wall configured to allow an electrical connection of the contact surface of the varistor in an operational state of the thermal protection device and a moveable insulation block configured to cover the window in the inner wall to insulate the varistor in a region of the window of the inner wall in a fault state of the thermal protection device.

In an embodiment a thermal varistor protection device includes a casing, a varistor embedded in the casing, wherein the varistor includes a first metallization electrode, which is only partly covered by an insulating material of the casing to allow an electrically conductive connection, a first terminal wire electrically conductively connected to the first metallization electrode of the varistor and a contact element electrically conductively connected to the first metallization electrode of the varistor in a region where the varistor is not covered by the insulating material, wherein the contact element is pre-stressed to ensure a fast separation of the contact element and the first metallization electrode when the electrically conductive connection between the contact element and the first metallization electrode becomes loose.

In an embodiment a thermal varistor protection device includes a casing, a varistor embedded in the casing, wherein the varistor includes a first metallization electrode, which is only partly covered by an insulating material of the casing to allow an electrically conductive connection, a first terminal wire electrically conductively connected to the first metallization electrode of the varistor and a contact element electrically conductively connected to the first metallization electrode of the varistor in a region where the varistor is not covered by the insulating material, wherein the contact element is pre-stressed to ensure a fast separation of the contact element and the first metallization electrode when the electrically conductive connection between the contact element and the first metallization electrode becomes loose.

The present invention relates to a shunt resistor for current detection. The shunt resistor (1) includes: a resistance element (5) having a plate shape; and electrodes (6, 7) connected to both end surfaces (5a, 5b) of the resistance element (5), wherein the electrodes (6, 7) have cut portions (11, 12), respectively, the cut portions (11, 12) extending parallel to joint portions (8, 9) of the resistance element (5) and the electrodes (6, 7), and each of the cut portions (11, 12) is located at a position where a relationship Y≤0.80X-1.36 holds, where Y is a distance from each joint portion (6, 7) to each cut portion (11, 12), and X is a length of the joint portions (6, 7) in a width direction of the electrodes (6, 7).

The present invention relates to a shunt resistor for current detection. The shunt resistor (1) includes: a resistance element (5) having a plate shape; and electrodes (6, 7) connected to both end surfaces (5a, 5b) of the resistance element (5), wherein the electrodes (6, 7) have cut portions (11, 12), respectively, the cut portions (11, 12) extending parallel to joint portions (8, 9) of the resistance element (5) and the electrodes (6, 7), and each of the cut portions (11, 12) is located at a position where a relationship Y≤0.80X-1.36 holds, where Y is a distance from each joint portion (6, 7) to each cut portion (11, 12), and X is a length of the joint portions (6, 7) in a width direction of the electrodes (6, 7).

In an embodiment a sensor arrangement includes a ceramic-based substrate, at least one sensor chip connected directly to the substrate in a horizontal position by a bonding material, at least one first contact element and at least one second contact element configured to act as outer electrodes of the sensor arrangement, wherein the first contact element comprises a contact member configured to electrically contact the sensor chip by the bonding material and an insulating body enveloping the sensor chip and at least parts of the contact elements, wherein the substrate is mainly free from a material of the insulating body.

A resistor assembly including at least two connector elements and at least one strip-like or plate-like resistor element arranged between the connector elements. The resistor element has an upper side, a lower side and two longitudinal sides parallel to each other. The at least one resistor element is of a material of which the electrical conductivity is lower than the electrical conductivity of the material of the connector elements. The resistor element has, on at least its upper side or at least its lower side, at least one shaped element as a positioning aid.

A resistor assembly including at least two connector elements and at least one strip-like or plate-like resistor element arranged between the connector elements. The resistor element has an upper side, a lower side and two longitudinal sides parallel to each other. The at least one resistor element is of a material of which the electrical conductivity is lower than the electrical conductivity of the material of the connector elements. The resistor element has, on at least its upper side or at least its lower side, at least one shaped element as a positioning aid.