1813results about "Fixed capacitor terminals" patented technology

The invention discloses a fixed vacuum capacitor with a short circuit function, which comprises a vacuum capacitor body, a movable conducting rod is arranged in the vacuum capacitor body, and the conducting rod is configured to connect two electrode groups of the vacuum capacitor body when the conducting rod deflects along a set direction so as to realize short circuit of the vacuum capacitor body. The movable conducting rod is arranged in the vacuum capacitor body, and when the conducting rod deflects, the two electrode groups can be connected to realize short circuit, so that the fixed vacuum capacitor has a short circuit function under the condition that the volume of the fixed vacuum capacitor is not changed; according to the design, the tedious problem that the circuit design of the radio frequency matcher needs to be changed by dismounting the fixed vacuum capacitor in specific scenes such as test and debugging of the radio frequency matcher and design of double-frequency and multi-frequency matchers is effectively solved, and the operation convenience is greatly improved; the specific requirements of a user for rapidly switching the working frequency and changing the circuit design of the radio frequency matcher are met, and the working efficiency is improved.

Via array configurations for metal-insulator-metal (MIM) capacitor structures are disclosed herein. An exemplary MIM capacitor structure includes a capacitor bottom metal layer, a first dielectric layer over the capacitor bottom metal layer, a capacitor middle metal layer over the first dielectric layer, a second dielectric layer over the capacitor middle metal layer, and a capacitor top metal layer over the second dielectric layer. A metal via array, which has a first metal via and a second metal via, is connected to the capacitor top metal layer and the capacitor bottom metal layer. A portion of the capacitor top metal layer covers an area of the second dielectric layer extending from the first metal via to the second metal via. From a top view, the portion of the capacitor top metal layer surrounds the first metal via and the second metal via.

A multilayer ceramic electronic component includes a multilayer body including first and second internal electrode layers extending first and second end surfaces, first and second external electrodes respectively on the first and second end surfaces and respectively connected to the first and second internal electrode layers. The first external electrode includes first and third Cu plating layers, the second external electrode includes second and fourth Cu plating layers. Average numbers of Cu particles are about 1.5 or less in two or more first or second square regions of the first and second Cu plating layers. Average numbers of Cu particles are more than about 1.5 in two or more third or fourth square regions of the third and fourth Cu plating layer. The first square regions to the fourth square regions each has a square or substantially square shape with each side having a dimension of about 2 μm.

A capacitor provides a plurality of selectable capacitance values, by selective connection of six capacitor sections of a capacitive element each having a capacitance value. The capacitor sections are provided in a plurality of wound cylindrical capacitive elements. Two vertically stacked wound cylindrical capacitance elements may each provide three capacitor sections. There may be six separately wound cylindrical capacitive elements each providing a capacitor section. The capacitor sections have a common element terminal.

A multilayer electronic component includes a body including a capacitance formation portion including a dielectric layer and internal electrodes alternately arranged in a first direction and cover portions disposed on the capacitance formation portion in the first direction, first to sixth surfaces; external electrodes disposed on the third and fourth surfaces; side margin portions disposed on the fifth and sixth surfaces; and a first extension portion disposed to extend to portions of the first and second surfaces, and wherein at least a partial region of the first extension portion has a curvature, wherein when an average thickness of the side margin portion is WM0 and a radius of curvature of at least a portion of the first extension portion is R, WM0 and R may satisfy 1.1<R / WM0<2.

To provide a laminate type electronic component that relieves a problem of deterioration in moisture resistance reliability of the laminate type electronic component that occurs due to the decrease in a moisture resistance permeation path.SOLUTION: A laminate type electronic component includes: a dielectric layer 111; internal electrodes 121 and 122 disposed alternately with the dielectric layer in a first direction; a lamination part 110 having a first surface and a second surface which face each other in the first direction, a third surface and a fourth surface which face each other in a second direction that is perpendicular to the first direction and is coupled to at least a part of the internal electrodes, and a fifth surface and a sixth surface which face each other in a third direction that is perpendicular to the first direction and the second direction; a protection part 120 disposed on the third surface and the fourth surface; and external electrodes 131 and 132 disposed on the lamination part and the protection part and coupled to the internal electrodes. The dielectric layer includes a first dielectric crystal grain and the protection part includes a second dielectric crystal grain. An average size of the second dielectric crystal grains may be smaller than an average size of the first dielectric crystal grains.SELECTED DRAWING: Figure 3

To provide a multilayer ceramic capacitor in which occurrence of cracking or chipping at a boundary part between an end face side ineffective part and a vertical ridge line ineffective part of a laminated body is prevented.SOLUTION: A multilayer ceramic capacitor 1 includes: a multilayer body 10 including a plurality of stacked dielectric layers 20 and a plurality of internal electrode layers 30; and an external electrode 40 disposed so as to be electrically connected to the internal electrode layers 30. An outer surface of the multilayer body 10 at a boundary part VLB between an end face side ineffective part LG and a vertical ridge line ineffective part VG, the outer surface of a vertical ridge line ineffective part VG, and the outer surface of the multilayer body at a boundary part VWB between the vertical ridge line ineffective part VG and the side face side ineffective part WG form a continuous curved surface VR protruding outward in a plan view from a multilayer direction T, and a protective film SC containing carbon and silicon as constituent elements is formed on the curved surface VR.SELECTED DRAWING: Figure 3

A capacitor assembly includes a traction inverter system housing and a set of power electronics defining two or more contacts, the set of power electronics mounted within the traction inverter system housing. A capacitor housing containing a capacitor is mounted within the traction inverter system housing. The capacitor includes two or more terminals extending outwardly therefrom and overlapping the two or more contacts. A terminal block is secured to the capacitor housing independent of attachment of the two or more contacts to the two or more terminals. The terminal block is configured to support the two or more terminals during a fastening operation attaching the two or more terminals to the two or more contacts. The terminal block may also be secured to the capacitor housing.

A disclosed multilayer ceramic electronic component includes: a stacked body that includes a plurality of dielectric layers stacked in a first direction and a plurality of internal electrodes stacked in the first direction; and a first external electrode, a second external electrode, a third external electrode, and a fourth external electrode that are disposed outside the stacked body. The plurality of internal electrodes includes a plurality of first internal electrodes connected to the first external electrode and the second external electrode and a plurality of second internal electrodes connected to the third external electrode and the fourth external electrode, and an edge of a cross-section of the stacked body that intersects the first direction is a curve.

An apparatus suitable for use in an air-conditioning system and configured to provide a plurality of selectable capacitance values includes a plurality of capacitive devices and a pressure interrupter cover assembly. Each of the capacitive devices has a first capacitor terminal and a second capacitor terminal. The pressure interrupter cover assembly includes a deformable cover, a set of capacitor cover terminals, a common cover terminal, and a set of insulation structures. The apparatus also includes a conductor configured to electrically connect the second capacitor terminal of at least one of the capacitive devices to the common cover terminal.

A multilayer electronic component is provided, the multilayer electronic component, including: a body including a dielectric layer and internal electrodes alternately disposed with the dielectric layer interposed therebetween in a first direction, the body having first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction; and an external electrode disposed on the third and fourth surfaces of the body and connected to the internal electrodes. At least one of the internal electrodes includes an interfacial layer disposed on at least a portion of a region connected to the external electrode, and the interfacial layer includes an oxide containing Fe.

A multilayer ceramic electronic component includes a multilayer body and a pair of external electrodes at both ends of the multilayer body. The external electrodes include a main surface-side external electrode including a recess recessed towards a multilayer body side in a cross-sectional view along a lamination direction and a length direction of the multilayer body, and peripheral regions adjacent to the recess in the length direction. A surface roughness of the recess is rougher than a surface roughness of the peripheral regions.

Provided is a multilayer ceramic capacitor that maintains electrical characteristics and ensures sufficient mechanical strength. In a multilayer ceramic capacitor (1), in a surface layer region (400), a side edge portion (16) includes a first segregation substance (133) having silicon as a main component and having a major diameter of 10 nm to 50 nm, and a second segregation substance (135) having silicon as a main component and having a major diameter of 1 [mu] m or more, a plurality of second segregation substances (135) are present in a cross section, and in the surface layer region (400), an additive component is included. The additive component includes at least one of zirconium, aluminum, titanium, and calcium, and the concentration of the additive component in the surface layer region (400) is higher than the concentration of the additive component in the inner region (402).

The base portion includes: a first outer layer portion (X1) positioned closer to the first main surface side than an internal electrode layer closest to the first main surface side in the stacking direction among the plurality of internal electrode layers; and a second outer layer section that is positioned closer to the second main surface side than an internal electrode layer that is closest to the second main surface side in the stacking direction among the plurality of internal electrode layers. The first outer layer portion (X1) and the second outer layer portion each include an outermost layer portion (Xa) disposed on the outermost side and an inner layer portion (Xb) located on the inner side of the outermost layer portion (Xa). The maximum height (Ha) of the irregularities on the outer surface of the outermost layer section (Xa) is smaller than the maximum height (Hb) of the irregularities on the outer surface of the inner outer layer section (Xb).

In a multilayer ceramic capacitor, when an internal electrode layer closest to one of outer layer portions is defined as an outermost internal electrode layer, the outermost internal electrode layer includes an internal electrode existing region and an internal electrode dividing region. The internal electrode dividing region includes a segregated region of magnesium or manganese, and a ratio B / A of a distance B in a length direction of the segregated region of magnesium or manganese relative to a distance A in the length direction of the internal electrode existing region is about 50% or more and about 75% or less.

A multi-layered capacitor including a capacitor body including a dielectric layer and an internal electrode; and an external electrode disposed on an outer side of the capacitor body, wherein the dielectric layer includes a plurality of dielectric crystal grains, and the dielectric crystal grains include a core containing BaTiO3, a first shell disposed on the core and containing BaTiO3 doped with a first doping element of Sr, Ca, Bi, K, Na, or a combination thereof, and a second shell disposed on the first shell and containing a first coating element of Nb, Ta, or a combination thereof.

A multilayer capacitor includes: a body including a dielectric layer, and first and second internal electrodes stacked on each other in a thickness direction of the capacitor while being spaced apart from each other with the dielectric layer interposed therebetween; a first external electrode connected to the first internal electrode; and a second external electrode spaced apart from the first external electrode in a length direction of the capacitor that is perpendicular to the thickness direction, and connected to the second internal electrode. One of the first internal electrode and the second internal electrode has a horizontal plane perpendicular to the thickness direction and an inclined plane inclined with respect to the horizontal plane in at least a partial region thereof.

A ceramic body with an embedded capacitor. In some embodiments, a device includes: a ceramic body composed of a ceramic material; a first capacitor within the ceramic body; a first conductive trace; and a second conductive trace, the first capacitor including: one or more ceramic dielectric layers; two or more metallic electrodes; a first metallic terminal; and a second metallic terminal, the metallic electrodes alternating with the ceramic dielectric layers, the metallic electrodes begin connected alternately to: the first metallic terminal; and the second metallic terminal, the first metallic terminal being connected to the first conductive trace, the second metallic terminal being connected to the second conductive trace, the first capacitor having a volume of at most 10% of a volume of the ceramic body.

Power converter (1) with: a switching circuit (20); a capacitor module (3) which is electrically connected to the switching circuit; an auxiliary capacitor module (5) connected in parallel to the capacitor module; and a device housing (12) which contains the switching circuit, the capacitor module and the auxiliary capacitor module, wherein The capacitor module includes: a capacitor element (31), a capacitor housing (32) that contains the capacitor element, an encapsulation resin (33) that encapsulates the capacitor element in the capacitor housing, and a capacitor busbar (4) which connects the capacitor element to a power terminal of the switching circuit, wherein the capacitor busbar includes: an element connection section (41) that is connected to the capacitor element within the encapsulation resin, a connecting section (42) which is connected to the power connection outside the encapsulation resin, and a power supply connection section (43) which is connected to a power supply wiring (54) outside the encapsulation resin, wherein the power supply wiring is electrically connected to a DC power supply, wherein the capacitor busbar includes a DC path (44) which represents a current path between the terminal connection section and the power supply connection section, and the DC path is exposed to the outside of the encapsulation resin, the auxiliary capacitor module is connected to the power supply connection section of the capacitor busbar, the auxiliary capacitor module is detachably attached to the power supply connection section by means of a fastening element (11), and a fastening direction of a fastening element (135) that secures the auxiliary capacitor module and a fastening direction of the fixing element are the same.

The application relates to the technical field of capacitors, and discloses a multilayer ceramic capacitor and a preparation method thereof. The multilayer ceramic capacitor comprises a ceramic body and two end electrodes arranged on two end surfaces of the ceramic body respectively, the end electrodes extend to the outer circumferential surface of the ceramic body, the ends of the two end electrodes are arranged oppositely and have a distance therebetween, an insulating layer is arranged on the end electrodes, a conductive layer is coated on the insulating layer, the conductive layer covers the insulating layer and extends to the end electrodes, and the end portions of the end electrodes are exposed to the conductive layer. The application can realize automatic electrical performance sorting, the connection area of the multilayer ceramic capacitor and the circuit board is small, the distance between the two welding points is small, the piezoelectric vibration of the multilayer ceramic capacitor is effectively inhibited from being transmitted to the circuit board, the ringing noise of the circuit board is reduced, the plating solution penetration path is long, the plating solution cannot reach the inner electrode, and the insulation resistance is not reduced.

A capacitor includes a capacitor element, a first bus bar and a second bus bar connected to the capacitor element, an insulating member disposed between the first bus bar and the second bus bar, a case that houses the capacitor element, and a filling resin filled in the case. A part of each of the first bus bar, the second bus bar, and the insulating member is exposed from the filling resin. The insulating member has a first opposing surface that opposes the first bus bar with a gap therebetween, and a first protrusion portion that contacts the first bus bar.

A multilayer electronic component according to an example embodiment of the present disclosure may include: a body including a dielectric layer and internal electrodes alternately disposed with the dielectric layer in a first direction, and including first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction; a protrusion portion disposed on the first and second surfaces; and an external electrode disposed on the third and fourth surfaces, wherein a width of the body in the third direction is W and a width of the protrusion portion in the third direction is W1, W1 / W may be 0.5 or more and 0.85 or less.

A multilayer ceramic capacitor includes a multilayer body and three or more external electrodes. A first internal electrode layer includes a first counter electrode portion, a first extension portion, and a second extension portion. The first counter electrode portion includes a first central region, a first connection region connected to the first extension portion, and a second connection region connected to the second extension portion. Coverages of the first and second connection regions with respect to the dielectric layers are higher than a coverage of the first central region with respect to the dielectric layers, and coverages of the first and second extension portions with respect to the dielectric layers are higher than the coverage of the first central region with respect to the dielectric layers.

This invention provides a bottom-electrode type multilayer ceramic capacitor that increases capacitance even in confined spaces. [Solution] The multilayer ceramic capacitor 10 comprises a laminate 12 having first and second surfaces 12a and 12b opposite to the lamination direction x, third and fourth surfaces 12c and 12d opposite to a first direction y perpendicular to the lamination direction, and fifth and sixth surfaces 12e and 12f opposite to a second direction perpendicular to the lamination direction and the first direction, first to third external electrodes 30a to 30c extending in the lamination direction of the fifth surface, a plurality of dielectric layers and internal electrode layers. The internal electrode layers include a first internal electrode layer 16a connected to the first external electrode and a second internal electrode layer 16b connected to the second and third external electrodes. The first internal electrode layer includes a first main part and a first lead portion projecting toward the first external electrode, and the second internal electrode layer includes a second main part and second and third lead portions projecting toward the second and third external electrodes, respectively.

Provided are multilayer ceramic capacitors that are each able to increase the capacitance without increasing the size of the multilayer ceramic capacitor. A multilayer ceramic capacitor 1 includes a first counter portion EA including a first region EA1, a second region EA2, and a first middle region EA0 located between the first region EA1 and the second region EA2 and including coverage higher than coverages of them; a second counter portion EB including a third region EB1, a fourth region EB2, and a second middle region located between the third region EB1 and the fourth region EB2 and including coverage higher than coverage of them. A thickness of each of the first middle region EA0 and the second middle region EB0 is 101.6% or more and 111.3% or less of a thickness of each of the first region E1, the second region EA2, the third region EB1, and the fourth region EB2, and a difference between coverage of each of the first middle region EA0 and the second middle region EB0 and coverage of each of the first region EA1, the second region EA2, the third region EB1, and the fourth region EB2 is 2.2 percentage points or more.

To provide an electronic component capable of establishing electric connection of an external electrode and a plurality of internal electrodes, and improving a connection intensity of an element body and the external electrode.SOLUTION: An electronic component comprises: an element body 3 including an end surface 3a in which a groove 11 is formed; a plurality of internal electrodes 7 arranged in the element body 3 so as to be opposite each other; and an external electrode arranged at the end surface 3a and electrically connected to the plurality of internal electrodes 7. In the case where the groove 11 and the plurality of internal electrodes 7 are viewed from a direction orthogonal to the end surface 3a, the groove 11 is formed in a wave form so as to be crossed to the plurality of internal electrodes 7. Each of the plurality of internal electrodes 7 is physically connected to the external electrode and exposed from the end surface 3a, at a position crossed to the groove 11.SELECTED DRAWING: Figure 3

A capacitor includes a first capacitor element, a second capacitor element, a first anode terminal plate, a second anode terminal plate, a first cathode terminal plate, a second cathode terminal plate, and a resin part. The second capacitor element is adjacent to the first capacitor element in a second direction orthogonal to a first direction. The first capacitor element includes a first outer lead part of a first anode lead and a first cathode that are disposed side by side in this order in the first direction. The second capacitor element includes a second cathode and a second outer lead part of a second anode lead that are disposed side by side in this order in the first direction. The first outer lead part overlaps the second cathode at side view in the second direction. The second outer lead part overlaps the first cathode at the side view.

By improving the conductivity efficiency, the temperature rise at the crimped portion is suppressed, providing an electrolytic capacitor with excellent reliability, and a method for manufacturing an electrolytic capacitor. [Solution] The electrolytic capacitor according to the present invention comprises an anode foil, a cathode foil, a separator, and lead terminals connected to the anode foil and the cathode foil, respectively. The lead terminal consists of a terminal portion, a lead wire, and a connection portion. The terminal portion has at least two crimped connection portions, which are perforated in a state where it is superimposed on the anode foil or the cathode foil, bent toward the anode foil or the cathode foil, and press-connected. The diameter of the press-connected crimped bent portion of the first crimped connection portion on the lead wire side of the terminal portion is larger than the diameter of the bent portion of the second crimped connection portion. The ratio of the diameter of the bent portion of the first crimped connection portion to the crimping distance between the first crimped connection portion and the second crimped connection portion is 1:0.9 to 1:1.3.