Abstract:
A thermistor with positive resistance-to-temperature characteristic used in a overcurrent protection circuit has electrodes on mutually opposite main surfaces and is mounted to a substrate having electrically conductive members such that deterioration of its voltage resistance due to heat emission can be controlled. A spacer with smaller thermal conductivity than the substrate and penetrated by a conductor piece with a small cross-sectional area is inserted between solder materials connecting to one of the thermistor electrodes. The other electrode is contacted by an elongated connecting member through its sectional surface transverse to its longitudinal direction such that the cross-sectional area of electrical conduction is reduced.
Abstract:
A multiterminal multilayer ceramic capacitor having a capacitor body comprised of first internal electrodes and second internal electrodes alternately stacked via rectangular ceramic layers so that the short sides of the ceramic layers register with the height direction of the capacitor body. First external terminals and/or second external terminals connected to the first internal electrodes and/or second internal electrodes are formed on a top face and bottom face of the capacitor body. The first external terminals and second external terminals are connected directly to different circuit patterns of the circuit board so as to enable three-dimensional mounting of the multilayer ceramic capacitor with circuit boards.
Abstract:
There is disclosed herein a spring battery retainer that is used to secure a small "coin" or "button" battery to a printed circuit (PC) card or the like. Use of the spring battery retainer provides for positive location of the battery, inexpensive electrical contacts for the battery terminals and positive spring compression that is necessary to insure hard contact with the cathode and the anode terminals of the battery. The battery is easily installed and removed by slightly lifting one end of the battery retainer and sliding the battery in or out. A bend in the spring battery retainer provides sufficient hold-down pressure so that the battery makes reliable contact with an electrical pad located on a PC board. The spring battery retainer is inserted into the PC card and then soldered to it in much the same way as a standard electrical component such as a resistor. The dimensions of the spring battery retainer can be varied so that coin or button batteries of various sizes can be securely fastened to a PC card.
Abstract:
A construction for mounting plate-like electric parts within insertion holes formed in a printed circuit board is described which has additional holes for releasing any gases formed by soldering the parts to the printed circuit board. These additional holes are formed contiguous with said insertion holes at positions spaced away from any electrodes of the plate-like electric parts.
Abstract:
Examples disclosed herein provide a press-activated component discharging facilitating apparatus for use with an electronic component powered by a battery cell. One example apparatus includes an enclosure to secure the battery when a first-type electrode of the battery is in electrical connection with a first-type electrode of the component, and a second-type electrode of the battery is in electrical connection with a second-type electrode of the component. The apparatus includes an electrically-conductive elastic member, which has a first end and a second end, wherein the first end is mechanically linked and electrically connected to the first-type electrode of the electronic component. In the condition that the elastic member is in a pressed state, due to the battery being subjected to an external pressing force, the second end of the elastic member is to come in electrical connection with contact pads disposed on a printed circuit board (PCB).
Abstract:
Die Erfindung betrifft ein Verfahren zur Kontaktierung und Befestigung von keramischen Drucksensoren (2) auf einer Leiterplatte (1), wobei der Drucksensor an einer Außenseite mehrere voneinander beabstandete Kontaktflächen aufweist und diese Kontaktflächen mit entsprechenden Kontaktflächen (7) auf der Leiterplatte verbunden werden. Um die händische Befestigung des Drucksensors an der Leiterplatte zu ersetzen, ist vorgesehen, dass der Drucksensor (2) über eine Lagekennzeichnung (9) verfügt, die Leiterplatte (1) mittels Schablonen oder Druckverfahren automatisiert mit einer leitfähigen Schicht zur stoffschlüssigen Verbindung beschichtet und der Drucksensor (2) mittels eines Bestückungsautomaten auf die Leiterplatte (1) gesetzt und die stoffschlüssige Verbindung hergestellt wird.