摘要:
An independently housed trim resistor including a trim resistor having a resistive element and a plurality of conductive pads, wherein the plurality of conductive pads are disposed so as to be communicated with the resistive element, a plurality of lead wires, wherein the plurality of lead wires are disposed so as to be communicated with and terminated at the plurality of conductive pads and a resistor housing, the resistor housing having a housing body and a housing top, wherein the housing body defines a resistor cavity for containing the trim resistor and wherein the housing top includes a trim opening disposed so as to allow communication with the resistive element and a method for fabricating an independently housed trim resistor including obtaining a first lead wire, a second lead wire and a trim resistor, wherein the trim resistor includes a resistive element and a plurality of conductive pads, obtaining a resistor housing having a housing top and a housing body, wherein the housing body defines a resistor cavity, arranging the first lead wire and the second lead wire so as to be communicated with the plurality of conductive pads, arranging the trim resistor so as to be disposed within the resistor cavity, arranging the housing top relative to the housing body so as enclose the resistor cavity, connecting the housing top to the housing body and adjusting the resistive element so as to achieve a desired resistance.
摘要:
The invention relates to a high-voltage resistor comprising a substantially rectangular substrate of an electrically insulating material. This substrate is provided, at two ends, with two electrodes which are connected to each other by means of a meander-shaper resistance layer. In accordance with the invention, one or more recesses are formed in one side face or two opposite side faces of the substrate. Resistors of this type or high-voltage supplies comprising such a high-voltage resistor can be operated at higher voltages and/or demonstrate a longer service life.
摘要:
An improved method of manufacturing thick film chip resistors in mass production is described. By applying two or more resistance layers per chip resistor, less variance in the eventual resistance value is obtained if the resistors are manufactured in mass production using substrate plates. Less variance in the resistance value implies less trimming activity, which leads to a considerable cost reduction. Moreover, the use of two or more sub-layers enables application of TCR compensation by applying a resistive material having a positive TCR for one sub-layer and a resistive material having a negative TCR for the other sub-layer.
摘要:
Es wird ein Hochleistungswiderstand (1, 100) mit einem Gehäuse (10), mit einem im Gehäuse (10) angeordneten Schichtwiderstand (2), der an einem elektrisch isolierenden Trägersubstrat (14) vorgesehen ist, und mit einer Vergussmasse (11) im Gehäuse (10) gezeigt, wobei das Gehäuse (10) mit der Vergussmasse (11) ausfüllt ist. Um für diesen eine hohe Betriebssicherheit trotz elektrischer Absicherung zu gewährleisten, wird vorgeschlagen, dass der Hochleistungswiderstand (1) im Gehäuse (10) sowohl eine feuerfeste Abdeckung (12) als auch eine Schmelzsicherung (4) mit einem Sicherungsdraht (5) aufweist, der mit dem Schichtwiderstand (2) elektrisch in Serie geschaltet ist, und dass die zwischen Sicherungsdraht (5) und Gehäuse (10) vorgesehene, feuerfeste Abdeckung (12) auf dem in die Vergussmasse (11) ragenden Sicherungsdraht (5) vorgesehen ist.
摘要:
A resistor (10) comprises first and second resistive elements (12, 14). Each of the first and second resistive elements (12, 14) is a different type (18, 20) of resistive element. The resistor (10) further comprises a cooling substrate (16) which is operatively couplable to a cooling mechanism (102). The same cooling substrate (16) is arranged to cool both of the first and second resistive elements (12, 14) when the cooling substrate (16) is operatively coupled to the cooling mechanism (102).