Abstract: A PTC device which surely achieve effective space utilization while easily excluding the possibility of the formation of a short circuit. The PTC device includes a PTC component 3 comprising a first electrode 11, a second electrode 13, and a PTC element 9 disposed between these electrodes, a first electrically conductive lead 15 which is connected to the first electrode and able to connect with a button terminal of a battery, a second electrically conductive lead 18 which is connected to the second electrode, and an insulating element 23. The insulating element covers the inner periphery 7 of the PTC component, the second electrode and a portion of the second electrode and the second electrically conductive lead on the second electrode.

Abstract: A remote control device has a compartment enclosed by a housing and receiving a printed board that carries a potentiometer for controlling the volume of sound of an electronic sound device and a switch for deactivating a selected playing selection. The remote control device is further provided with a plurality of coupling elements connecting the printed board to the housing and with a multi-wire cable connecting the potentiometer and push switch to an audio circuit and a selection control circuit of the electronic sound device.

Abstract: The invention relates to an adjustable voltage divider arrangement produced by hybrid technology, having a first current-carrying ohmic resistance layer arranged between two printed conductors and a second resistance layer, which is electrically connected to the first resistance layer and to which there is connected a third printed conductor as a pick-off electrode. A cut is made in the second resistance layer for adjusting the voltage divider so that a desired level can be picked off at the pick-off electrode.

Abstract: A resistor having a diffused impurity region in a semiconductor substrate, an insulated gate surrounding and defining the resistor, and a pair of separated conductive contacts to the diffused region within the boundary of the insulated gate for applying and receiving current passing through the resistor.

Abstract: A magnetoresistive element is obtained which can exhibit a larger MR change than conventional.The magnetoresistive element is characterized as comprising a multilayer film 3 having a multilayer structure in which a nonmagnetic conductive layer 5 is interposed between a pair of ferromagnetic layer 4, 6, a pair of electrodes 7, 8 which produces a detection current flow through the multilayer film 3, and filter layers 1, 2 comprised of ferromagnetic material and disposed between at least one of the pair of ferromagnetic layers and the electrodes 7, 8 for delivering spin-polarized electrons to the ferromagnetic layers 4, 6, and characterized that a traveling distance of electrons in the ferromagnetic layers 4, 6 is maintained shorter than a spin diffusion length.

Abstract: A focus unit of an FBT (fly back transformer) is described, which is installed on a side of the FBT, for adjusting the focus and screen voltages of a cathode ray tube. Focus and screen voltage adjusting round resistor patterns 130 are respectively formed on volume boards 120 of the focus unit, and a supporting shaft 160 is received into a central through hole 140 of the round resistor pattern 120. A connecting pin 170 is inserted into the supporting shaft 160, and a cable 210 is inserted into each of holes of a volume case so as for the cable to be connected to the lower end of the connecting pin 170. A pair of actuation knobs are inserted into a cover, and a slider spring is installed within each of volume bars, while the lower end of the slider spring 230 is movably connected to the round resistor pattern 130. Thus the slider spring for adjusting the focus volume can be easily installed on a volume bar, and the focus and screen voltages can be controlled in a sure manner.

Abstract: A description is given of a precision resistor. The resistor comprises a substrate having two connections which are electrically interconnected via a resistance path, said resistance path comprising a first path portion having a positive TCR and a second path portion having a negative TCR. The resistor is characterized in that the resistance material of both path portions is selected so that the resistance values and the absolute TCRs of both path portions are comparable and in that both path portions are trimmed so that the resistor has desired resistance and TCR values. Preferably, the resistance materials used for the path portions consist of an alloy of substantially the same composition on the basis of CuNi or NiCrAl. The invention makes it possible to very accurately and reproducibly mass-produce precision resistors.

Abstract: PTC thermistors are used in reversible short circuit current limiters, in particular in series connection with electrical valves and/or capacitors. An electrically insulated, thermally conductive insulation or ceramic layer (20) is in contact electrically and with good thermal conduction via a first main surface with a metallic cooling element (25). A second main surface of the ceramic layer (20), opposite the first main surface, is covered with an electrically insulating thermal-conduction layer (21) having a thickness in the range from 10 .mu.m-100 .mu.m. Meandering tracks (16) of the resistive body of the PTC thermistor (5) are pressed between this thermal conduction layer (21) and an electrically insulating, preferably thermally conductive, flexible high-temperature stable polymer film (22). In order to provide pressure, a pressure compensation cushion (23) on which a force (F) orthogonal to the second main surface of the ceramic layer (20) acts, may be provided.

Abstract: A metalization layer formed as part of a bump connection/flip chip process for a semiconductor circuit is also used to form a sense resistor or other passive components. The metalization layers normal composition can also be altered so as to change or control the value of the so formed resistor or to improve the temperature stability of the resistor. Other passive components such as capacitors or inductor can also be formed in this layer.

Abstract: A temperature sensor assembly (10) including a pair of rigid lead frames (12, 14) having retention pockets (24, 26) thereon for retaining a sensor assembly (32). The sensor assembly (32) includes a surface mount device package (34) containing a thermistor (36). The lead frames (12, 14) are molded into a housing (15) after assembly of the sensor assembly (32) to the lead frames (12, 14).

Abstract: A curved disc joystick or pad with improved performance, reliability and durability can be used as a cursor pointing device for computers, remote controls, video games, consumer electronics, industrial controllers, automotive and other applications. A conductive spring or sheath connects to a conductive curved rubber transducer which can be deflected to make contact with conductors on a printed circuit board, providing electrical outputs to a microprocessor or other device. A ribbed locking extension may be added to automate the assembly process. In addition, a collar may be provided to produce a controllable product, both in terms of manufacturing and performance.

Abstract: A low capacitance chip varistor and a fabrication method thereof are described, which are capable of protecting the electronic elements of an electronic instrument from an external and internal surge and being well applicable to an electronic element which requires a low capacitance, and the low capacitance chip varistor includes at least one sheet support layer formed of a member having a low dielectric constant, a varistor layer including at least more than one varistor coating layer formed on the support layer, at least more than two internal electrode folded with a predetermined portion of the varistor layer to be connected with the varistor layer, one end of each of which is extended from a lateral surface of the support layer, and a pair of integrally formed external electrodes formed on a lateral surface of a varistor stack member integrally formed of the support layer, the varistor layer and the internal electrodes to be connected with one end portion of each internal electrode.

Abstract: The present invention is directed towards a resistor which has higher load-, surge-, and pulse-resistant characteristics and is capable of having a resistance adjusted at a higher rate of precision. A pair of electrodes 12 and a main resistance path 13 between the two electrodes 12 are mounted on a substrate 11. The main resistance path 13 is joined to a set of first rungs 14 which extend parallel to the main resistance path 13 and are joined with two first connecting paths 15 to form a first ladder-like resistance path for rough adjustment of the resistance which is connected to a part of the main resistance path 13. Also, a second ladder-like resistance path for fine adjustment of the resistance which comprises a set of second rungs 16 extending vertically from the main resistance path 13 and two second connecting paths 17 joining the second rungs 16 together is formed and connected to a part of the main resistance path 13.

Abstract: The present invention provides a temperature sensor element having excellent heat resistance, quick heat response, stable resistance, and high reliability with a less variation in resistance against time. The temperature sensor element includes a thermo-sensitive film mainly composed of a heat sensitive material having electrical resistance varies depending on the temperature; a pair of electrode films arranged to measure the electrical resistance in the direction of the thickness of the thermo-sensitive film, a base plate mainly composed of a heat-resistant insulating material for supporting the thermo-sensitive film and the electrode films, an anti-diffusion film interposed between the thermo-sensitive film and the electrode film in the vicinity of the base plate, and a film mainly composed of a heat-resistant insulating material for covering the thermo-sensitive film and the electrode films except the lead-connecting terminals of the electrode films.

Abstract: Electrodes on both ends of a thermistor chip element each have a first metal layer formed on the thermistor chip element and a second metal layer which has a smaller area than the first metal layer and is formed on the first metal layer such that the mutually opposite edge parts of the first metal layers are exposed. Third metal layers are formed over the second metal layers. A fourth metal layer may be formed between the first and second metal layers.

Abstract: A continuous ribbon resistor element having a plurality of conjunctive lengths alternately connected by reflexes is supported in a frame comprised of silicon bonded laminated mica. The ribbon elements are formed with a single, flat convolution center offset to one side of an original plane and lateral portions offset to an opposite side of the plane, joined to the center offset by transition portions such that the centroid for any transverse cross section lies on the original plane. The offsets originate at flat end portions near the reflexes and have maximum offset intermediate the ends. Metal members are received in openings of the laminated mica insulators to receive threaded fasteners when attaching an insulator in edge-wise relationship to another. Thermally conductive termination connections are brought outside the frame and airflow passageway to remove from the passageway the additional heat otherwise absorbed by the terminals.

Abstract: In spite of small size, a rotary manipulation type variable resistor capable of preventing electromigration when used in direct-current electric field is obtained. Moreover, the process of forming the case while inserting the resistance substrate and current collector is simplified. It includes a resistance element layer disposed on a first insulating substrate, a conductive layer disposed on a second insulating substrate, and a slider having a first contact point contacting with the surface of the resistance element layer and a second contact point contacting with the surface of the conductive layer. The conductive layer is a printed layer containing conductive powder and binder, and the surface of the resistance element layer and the surface of the conductive layer are positioned mutually at a step.

Abstract: An assembly (24) for monitoring the travel of a device includes a potentiometer (26) having a slide bar (32). The potentiometer generates a resistance value according to a position of the slide bar which is coupled to the door through a rotatable member (40) carried by a bracket (34). A slide rack (36) is carried by the bracket and is coupled to both the slide bar and the rotatable member. The slide rack operatively engages the rotatable member between predetermined first and second positions and operatively disengages from the rotatable member when at the first and second positions.

Abstract: An electrical switch has spaced, facing coupler and carrier layers with a set of electrodes formed on the facing surfaces thereof. There is an aperture in the coupler layer. A conductive armature is disposed in the space between the coupler and carrier, aligned with the aperture. The coupler is a magnet and the armature is made of magnetic material so the armature is normally held in engagement with the coupler. A user can press on any part of the armature through the aperture to cause a first portion of the armature to break away from the armature and contact the electrodes on the carrier while a second portion of the armature remains in contact with the coupler. The electrodes are arranged to provide an output which is dependent upon the location of contact with the armature.

Abstract: A flexible element for use in a rotary position sensor or the like having the direction of electrical traces on one surface of the element altered without putting the traces into tension. The directional change is accomplished by partially splitting the flexible element and continuing an electrical trace from one side of the split back along the other side. The invention makes it possible to decrease the size for a given operational angle of mechanically variable resistors without sacrificing quality or reliability.