A chip-type fuse includes a main body portion composed of an insulating material, a fuse conductor that is disposed inside the main body portion and that has both end portions exposed at the main body portion, and a pair of outer electrodes that cover respective end portions of the main body portion and that are connected to respective end portions of the fuse conductor. A hollow portion is present inside the main body portion, and the fuse conductor has a fusing portion disposed along the wall surface of the hollow portion.

A chip-type fuse includes a main body portion composed of an insulating material, a fuse conductor that is disposed inside the main body portion and that has both end portions exposed at the main body portion, and a pair of outer electrodes that cover respective end portions of the main body portion and that are connected to respective end portions of the fuse conductor. A hollow portion is present inside the main body portion, and the fuse conductor has a fusing portion disposed along the wall surface of the hollow portion.

A fuse element capable of surface-mounting and capable of increased ratings while maintaining high-speed blowout property; and a fuse device using the same. A fuse element blown by self-generated heat caused when a rate-exceeding current flows therethrough constitutes a current path of a fuse device and has a low melting point metal layer and a high melting point metal layer laminated onto the low melting point metal layer; when the current flows therethrough, the low melting point metal layer erodes the high melting point metal layer and blowout occurs.

A fuse element capable of surface-mounting and capable of increased ratings while maintaining high-speed blowout property; and a fuse device using the same. A fuse element blown by self-generated heat caused when a rate-exceeding current flows therethrough constitutes a current path of a fuse device and has a low melting point metal layer and a high melting point metal layer laminated onto the low melting point metal layer; when the current flows therethrough, the low melting point metal layer erodes the high melting point metal layer and blowout occurs.

The invention relates to a protection device for use in an electrical circuit of an electric machine, particularly an electric motor, having a holding device which is designed to receive an hold power supply devices for feeding the electrical current, the holding device being made of a first material with a first melting temperature T1, and temperature protection device, which is designed to protect the electrical circuit from an overtemperature and which is made of a second material with a second melting temperature T2, wherein the first material and the second material are selected, and/or the temperature protection device is arranged, in such a manner that the electrical circuit is automatically interrupted when at least one of the melting temperatures T1, T2 is reached, wherein the ratio of the first melting temperature T1 to the second melting temperature T2 is in range of greater than 1.2 to equal to 1.50. The invention also relates to an electrical drive arrangement having such a protection device.

The invention relates to a protection device for use in an electrical circuit of an electric machine, particularly an electric motor, having a holding device which is designed to receive an hold power supply devices for feeding the electrical current, the holding device being made of a first material with a first melting temperature T1, and temperature protection device, which is designed to protect the electrical circuit from an overtemperature and which is made of a second material with a second melting temperature T2, wherein the first material and the second material are selected, and/or the temperature protection device is arranged, in such a manner that the electrical circuit is automatically interrupted when at least one of the melting temperatures T1, T2 is reached, wherein the ratio of the first melting temperature T1 to the second melting temperature T2 is in range of greater than 1.2 to equal to 1.50. The invention also relates to an electrical drive arrangement having such a protection device.

A current-limiting fuse for an electronic apparatus, such as, for example, a transformer. The fuse can be withdrawable under a liquid insulating medium, such as oil, and is capable of being replaceable in the field. The fuse can include a fuse element that is encased within an electrically insulative sheath. Additionally, a plurality of contact blades can extend from a lower portion of the fuse and be securely engaged with contact clips that are in electrical communication with one or more components of the electronic apparatus. The contact blades can be positioned within a dielectric insulating medium while a reminder of the fuse between the contact blades and the enclosure can be positioned within an air gap. Further, the contact blades can accommodate seating of the fuse within the enclosure and/or an associated canister.

A current-limiting fuse for an electronic apparatus, such as, for example, a transformer. The fuse can be withdrawable under a liquid insulating medium, such as oil, and is capable of being replaceable in the field. The fuse can include a fuse element that is encased within an electrically insulative sheath. Additionally, a plurality of contact blades can extend from a lower portion of the fuse and be securely engaged with contact clips that are in electrical communication with one or more components of the electronic apparatus. The contact blades can be positioned within a dielectric insulating medium while a reminder of the fuse between the contact blades and the enclosure can be positioned within an air gap. Further, the contact blades can accommodate seating of the fuse within the enclosure and/or an associated canister.

A fuse structure may include an anode pattern, a cathode pattern and a connection member. The anode pattern may be formed on a semiconductor substrate. The cathode pattern may be formed on the anode pattern. The connection member may be electrically connected between the anode pattern and the cathode pattern. The connection member may have different widths.

A fuse structure may include an anode pattern, a cathode pattern and a connection member. The anode pattern may be formed on a semiconductor substrate. The cathode pattern may be formed on the anode pattern. The connection member may be electrically connected between the anode pattern and the cathode pattern. The connection member may have different widths.