In one aspect, an electric coil structure is disclosed. The electric coil structure includes a magnetic core and a substrate. The substrate comprises a conductive material that is embedded in an insulating material. The substrate has a first portion and a second portion and the first portion of the substrate is wrapped around the core. The substrate can have a first portion having a plurality of contacts and a second portion having a corresponding plurality of edge contacts. The coil structure includes an alignment structure. The alignment structure can facilitate attachment of the first portion to the second portion to define a coil about the magnetic core. The alignment structure can comprise a redistribution substrate. The redistribution substrate can be disposed between the first portion and the second portion with the conductive material of the first portion electrically connected to the conductive material of the second portion through the redistribution substrate to define at least one winding. The alignment structure can include an adhesive. The adhesive can be disposed in the recess electrically connecting the first and second portions to define at least one winding. The coil structure can include a solder joint. The solder joint can be disposed between the plurality of contacts and the corresponding plurality of edge contacts making electrical connections between the first and second portions to define at least one winding such that the solder joint is exposed on the first portion.

A residual current device includes an insulating housing, an electromagnetic induction module, a leakage current detecting module and an electromagnetic shielding structure. The insulating housing includes a base and a lid. The electromagnetic induction module is disposed in the base. The electromagnetic induction module includes a core base and an iron core. The leakage current detecting module is disposed in the base. The leakage current detecting module includes a circuit board assembly, a detecting circuit disposed on the circuit board assembly and a lead frame electrically connected to the circuit board assembly. The electromagnetic shielding structure is disposed in the base and covers the leakage current detecting module. The effect of preventing electromagnetic interference is achieved.

An electronic module includes: a lead frame having at least one metal strip and a plurality of metal leads, wherein a magnetic body encapsulates a portion of each of the at least one metal strip with two ends of each of the at least one metal strip not covered by the magnetic body; and a substrate disposed on the lead frame, wherein the substrate is electrically connected to the plurality of metal leads and the at least one metal strip.

An inductor component and a method for manufacturing an inductor component that enables miniaturization of the inductor component. An inductor component includes an annular core; and a coil including a plurality of pin members and wound on the core with neighboring pin members connected to each other. A first pin member and a second pin member both adjacent to each other have a welded part in which an end face of an end part of the first pin member and a peripheral surface of an end part of the second pin member are welded to each other. The welded part is not provided on an outer side edge of the second pin member as viewed from a direction orthogonal to a first plane containing a center line of the end part of the first pin member and a center line of the end part of the second pin member.

A power transformer including at least one primary side conductive piece, at least one secondary side conductive piece, a first conductive strip pin, a second conductive strip pin and an iron core set is provided. The at least one secondary side conductive piece is stacked to the at least one primary side conductive piece along an axis. The first conductive strip pin and the second conductive strip pin extend from the at least one secondary side conductive piece, and are bent and extend along the axis. The iron core set is coupled to the at least one primary side conductive piece and the at least one secondary side conductive piece. A circuit board module is further provided.

A magnetic connector assembly has two independent magnetic components sharing a common core structure. The magnetic assembly includes first and second bobbins, and includes a magnetic core. The magnetic core includes first and second core halves, each half including a main core body, a first outer leg, a second outer leg, and a middle leg. The first outer leg fits within a passageway of the first bobbin. The second outer leg fits within a passageway of the second bobbin. The middle leg fits between the two bobbins.

An inductor component includes a coil, a magnetic core, a first terminal, and a second terminal. The coil is made of a wound conductive wire. The coil is embedded in the magnetic core made of magnetic metal powder and insulation resin binder. The magnetic core has a bottom surface, a top surface opposite to the bottom surface, a first side surface which is perpendicular to the bottom surface and is connected with the bottom surface and the top surface, a second side surface opposite to the first side surface, a third side surface connected with the first side surface and the second side surface, and a fourth side surface opposite to the third side surface. The first terminal and the second terminal extend from both ends of the coil and protrude from the bottom surface. A line along the bottom surface extending from a position at which the first terminal protrudes to a position at which the second terminal protrudes is longer than a straight line extending from the position at which the first terminal protrudes to the position at which the second terminal protrudes.

A coil component includes a body including a coil and an external electrode disposed on an external surface of the body to be connected to the coil. The body includes a support member, disposed to support the coil, having a via hole spaced apart from a through-hole. The coil includes a coil body and a coil lead-out portion disposed to connect the coil body and the external electrode to each other. A first support layer is disposed between one surface of the support member and one surface of the coil lead-out portion, and a second support layer is disposed on the first support layer.

A cable television apparatus improving high frequency characteristics includes a first connector and a first choke. The first connector is electrically connected to an input coaxial cable or an output coaxial cable. The first choke is electrically connected to the first connector. The first connector includes a first signal transmission unit. The first choke is used to block a cable television signal. The first choke allows a first current flowing through the first choke. The first current is greater than or equal to 10 amperes. The first choke is directly touched the first signal transmission unit, or a connection path length between the first signal transmission unit and a pin of the first choke is less than 5 millimeters.

A magnetic assembly includes a magnetic core, two windings, and a base. The windings are arranged around the magnetic core, and each of the windings has two leading sections. The base carries the magnetic core, and comprises a frame part, a pin base, and two first pins and two second pins disposed on the pin base. The pin base is connected with the frame part, and has four through holes. Two first pins are disposed in two of the through holes, and two second pins are disposed in the other two of the through holes. Each of the first pins and the second pins has two extending parts extended from the first surface and the second surface respectively, and the leading sections of the windings are connected with the first pins and the second pins respectively. Therefore, the advantages of decreasing the production costs and product standardization are achieved.