H01G4/248

Multilayer electronic component

A multilayer electronic component includes: a body including dielectric layers and first and second internal electrodes; a first external electrode including a first electrode layer connected to the first internal electrodes, a first conductive resin layer on the first electrode layer, and a first plating layer on the first conductive resin layer, and including a first connection portion on a third surface of the body and a first band portion extending on first and second surfaces of the body; and a second external electrode connected to the second internal electrodes. L2-L1 is greater than 10 μm in which L1 is a distance from the third surface to a distal end of the first conductive resin layer in the first band portion, and L2 is a distance from the third surface to a distal end of the first plating layer in the first band portion.

MULTI-LAYER CERAMIC CAPACITOR AND METHOD OF PRODUCING THE SAME
20230162924 · 2023-05-25 ·

A multi-layer ceramic capacitor includes a first region, a second region, a multi-layer unit, and a side margin. In the first region, crystal grains including intragranular pores are dispersed. In the second region, crystal grains including intragranular pores are not dispersed. The multi-layer unit includes ceramic layers that are laminated in a first direction and include the second region, and internal electrodes disposed between the ceramic layers. The side margin covers the multi-layer unit from a second direction orthogonal to the first direction and includes a region, the region being adjacent to the multi-layer unit and including the first region.

DC LINK CAPACITOR, POWER CONVERTER AND ELECTRIC VEHICLE

A DC link capacitor (8) comprises a capacitor housing, a plurality of capacitor cells (1), each comprising a film capacitor element (2) with a wound metallized film and two contact terminals (3a, 3b) connected to the metallized plastic film. The plurality of capacitor cells (1) are arranged in the capacitor housing (4) and are sealed therein by means of a sealing material (7). The contact terminals (3a, 3b) are electrically isolated from each other and protrude separately out of the sealing material (7), in order to be connected by means of bus bars.

DC LINK CAPACITOR, POWER CONVERTER AND ELECTRIC VEHICLE

A DC link capacitor (8) comprises a capacitor housing, a plurality of capacitor cells (1), each comprising a film capacitor element (2) with a wound metallized film and two contact terminals (3a, 3b) connected to the metallized plastic film. The plurality of capacitor cells (1) are arranged in the capacitor housing (4) and are sealed therein by means of a sealing material (7). The contact terminals (3a, 3b) are electrically isolated from each other and protrude separately out of the sealing material (7), in order to be connected by means of bus bars.

MULTILAYER CERAMIC ELECTRONIC COMPONENT

A multilayer ceramic electronic component includes: a body including a dielectric layer and a plurality of internal electrodes stacked on each other having the dielectric layer interposed therebetween; and an external electrode disposed externally on the body and connected to one or more of the internal electrodes. The body includes a first region in contact with the external electrode and a second region not in contact with the external electrode, and R.sub.1/R.sub.2 satisfies 3 to 15 in which R.sub.1 indicates a surface roughness R.sub.a of the first region and R.sub.2 indicates a surface roughness of the second region.

MULTILAYER CERAMIC ELECTRONIC COMPONENT

A multilayer ceramic electronic component includes: a body including a dielectric layer and a plurality of internal electrodes stacked on each other having the dielectric layer interposed therebetween; and an external electrode disposed externally on the body and connected to one or more of the internal electrodes. The body includes a first region in contact with the external electrode and a second region not in contact with the external electrode, and R.sub.1/R.sub.2 satisfies 3 to 15 in which R.sub.1 indicates a surface roughness R.sub.a of the first region and R.sub.2 indicates a surface roughness of the second region.

MULTI-LAYER CERAMIC ELECTRONIC COMPONENT AND CIRCUIT BOARD

A multi-layer ceramic electronic component includes: a ceramic body having a substantially rectangular parallelepiped shape; and external electrodes each including a base layer, a conductive resin layer, and first and second conductive layers. A conductive filler includes a core portion and a silver coating film made of silver and covering the core portion. In a cross-section parallel to the first and second axes, when a straight line parallel to the first axis is drawn to pass through a range distant from a base end portion, and when a thickness of the first conductive layer along the line is a conductor thickness, and the sum of lengths of the silver coating film along the line in all the conductive fillers on the line is a total thickness of silver coating, a ratio of the conductor thickness to the total thickness of silver coating is 2 or more and 10 or less.

MULTI-LAYER CERAMIC ELECTRONIC COMPONENT AND CIRCUIT BOARD

A multi-layer ceramic electronic component includes: a ceramic body having a substantially rectangular parallelepiped shape; and external electrodes each including a base layer, a conductive resin layer, and first and second conductive layers. A conductive filler includes a core portion and a silver coating film made of silver and covering the core portion. In a cross-section parallel to the first and second axes, when a straight line parallel to the first axis is drawn to pass through a range distant from a base end portion, and when a thickness of the first conductive layer along the line is a conductor thickness, and the sum of lengths of the silver coating film along the line in all the conductive fillers on the line is a total thickness of silver coating, a ratio of the conductor thickness to the total thickness of silver coating is 2 or more and 10 or less.

Capacitor component

A capacitor component includes a body including a plurality of dielectric layers and first and second internal electrodes, alternately disposed to face each other with respective dielectric layers interposed therebetween, and first and second external electrodes disposed on external surfaces of the body and connected to the first and second internal electrodes, respectively. The body includes a capacitance forming portion, in which capacitance is formed by including the first and second internal electrodes, cover portions disposed above and below the capacitance forming portion, respectively, and margin portions disposed on both side surfaces of the capacitance forming portion, respectively. At least one selected from the cover portions and the margin portions includes a plurality of graphene platelets.

Capacitor component

A capacitor component includes a body including a plurality of dielectric layers and first and second internal electrodes, alternately disposed to face each other with respective dielectric layers interposed therebetween, and first and second external electrodes disposed on external surfaces of the body and connected to the first and second internal electrodes, respectively. The body includes a capacitance forming portion, in which capacitance is formed by including the first and second internal electrodes, cover portions disposed above and below the capacitance forming portion, respectively, and margin portions disposed on both side surfaces of the capacitance forming portion, respectively. At least one selected from the cover portions and the margin portions includes a plurality of graphene platelets.