Abstract:
Einmechanisch stabiler Grundkörperweist eine Ausnehmung auf, in die ein ESD Schutzelement zumindest teilweise eingebettetundmittels eines Verbindungsmittelsmechanisch fixiert ist. Elektrische Anschlüsse des Schutzelements sind über eine auf Grundkörperund Schutzelement aufliegende strukturierte metallische Schichtmit Anschlussflächen auf der Oberseite des Grundkörpers verbunden.
Abstract:
The invention relates to a component with a base body (1) made from a ceramic material comprising an envelope (2) containing organic solvent, whereby a laminar stack (3) is arranged on the surface of the base body (1), with an electrically conducting protective layer (4), preventing the diffusion of the organic solvent and a solder layer (5), soldered to a contact element (9). The invention further relates to the production of the component in a high vacuum. The invention furthermore relates to the use of the component as a PTC-thermistor in overload protection circuits. The resistance stability of the ceramic component can be improved by means of the additional protective layer in the sandwich electrode.
Abstract:
오픈모드 보호소자 및 이를 구비한 전자장치가 제공된다. 본 발명의 일 실시예에 따른 오픈모드 보호소자는 정전류원 및 LED로 이루어진 부하에 각각 병렬 연결되는 오픈모드 보호소자로서, 오픈모드 보호소자는 정전류원 및 부하의 일측에 연결되는 제1외부전극; 정전류원 및 부하의 타측 및 접지에 연결되는 제2외부전극; 제1외부전극으로 유입되는 과전압 또는 과전류를 제2외부전극을 통하여 접지로 바이패스시키는 보호부; 및 보호부와 직렬 연결되고, 보호부의 온도 또는 전류를 감지하여 온도 또는 전류가 증가함에 따라 보호부의 전류를 감소시키는 전류억제부;를 포함한다.
Abstract:
Offenbart ist ein Entladewiderstand mit zumindest einem PTC-Baustein, der mit einem Kühlkörper derart verpresst ist, dass der Entladewiderstand bei Spannungen bis zu 1200 Volt verwendbar ist. Der Entladewiderstand ist vorzugsweise so ausgelegt, dass das Verhältnis des Volumens (cm 3 ) zur Energieaufnahme (J) unterhalb von 200 J / cm 3 , vorzugsweise unterhalb von 120 J / cm 3 liegt.
Abstract translation:公开了一种放电电阻器,其具有至少一个压制到冷却器的PTC封装件,使得放电电阻器可在高达1200伏的电压下使用。 放电电阻优选设计成使得体积(cm 3)与能量摄入量(J)之比低于200J / cm 3,优选低于120J。 / cm 3 sup>。 p>
Abstract:
An electronic part having electrodes whose ends are covered with resin for preventing moisture from entering into the part. The part comprises external electrodes (3) formed on both end faces of a varistor element (1) constituted by alternating ceramic sheets (1a) and internal electrodes (2), an internal insulating layer (30) formed by covering or filling up pores in the element (1) with an Si resin, and an external-surface insulating layer (31) formed so as to coat the external surface of the element (1) and the end sections of the electrodes (3).
Abstract:
A fiber/resin composite (40) whose resin phase is formed by at least initial actinic radiation curing of a resin composition comprising an actinic radiation curable first resin component and a second resin component which is non-cured under curing conditions effective for the first resin component. The actinic radiation exposure of the fiber/resin composition effects curing of the first resin component to immobilize the composite and impart structural integrity thereto, whereby the composite may be handled, packaged, or further processed. Filament wound, braided, and pultruded articles are described, together with associated methods for forming such articles by filament winding, braiding and pultrusion. As a specific embodiment, a solid fuel rocket motor (80) is disclosed comprising a solid fuel body (64) in a filament wound fiber-resin composite casing (82) formed by filament winding of the solid fuel body with resin-impregnated filament or rovings (76) thereof..
Abstract:
A method of manufacturing a surface mount device (100, 900) includes providing at least one core device (120, 920) and at least one lead frame (310). The core device is attached to the lead frame. The core device and the lead frame are encapsulated within an encapsulant (125, 925). The encapsulant includes a liquid epoxy that when cured has an oxygen permeability of less than approximately 0.4 cm 3 ⋅mm/m 2 ⋅atm⋅day. Another method of manufacturing a surface mount device includes forming a plaque (1105) from a material, forming a plurality of conductive protrusions (915) on a top surface and a bottom surface of the plaque, and applying a liquid encapsulant over at least a portion of the top surface and at least a portion of the bottom surface of the plaque. When cured, the encapsulant has an oxygen permeability of less than about 0.4 cm 3 ⋅mm/m 2 ⋅atm⋅day. The assembly is cut to provide a plurality of components (1120a-c). After cutting, the top surface of each component includes at least one conductive protrusion, the bottom surface of each component includes at least one conductive protrusion, the top surface and the bottom surface of each component include the cured encapsulant, and a core of each component includes the material.
Abstract translation:制造表面贴装装置(100,900)的方法包括提供至少一个芯装置(120,920)和至少一个引线框架(310)。 核心设备连接到引线框架。 核心器件和引线框架封装在密封剂(125,925)内。 密封剂包括液态环氧树脂,其在固化时的透氧度小于约0.4cm 3·mm / m 2·atm·天。 制造表面安装装置的另一种方法包括从材料形成一个板(1105),在该板的顶表面和一个底表面上形成多个导电凸起(915),并在至少一部分上施加液体密封剂 的顶表面和板的底表面的至少一部分。 当固化时,密封剂的氧气渗透性小于约0.4cm 3·mm / m 2·atm·day。 组件被切割以提供多个部件(1120a-c)。 在切割之后,每个部件的顶表面包括至少一个导电突起,每个部件的底表面包括至少一个导电突起,每个部件的顶表面和底表面包括固化的密封剂,以及每个部件的芯部 包括材料。
Abstract:
A chip resistor includes an insulating substrate 11, top terminal electrodes 12 formed on top surface of the substrate using silver-based cermet, bottom electrodes 13, resistive element 14 that is situated between the top terminal electrodes 12 and overlaps them partially, an optional internal protective coating 15 that covers resistive element 14 completely or partially, an external protective coating 16 that covers completely the internal protection coating 15 and partially covers top terminal electrodes 12, a plated layer of nickel 17 that covers face sides of the substrate, top 12 and bottom 13 electrodes, and overlaps partially external protective coating 16, finishing plated layer 18 that covers nickel layer 17. The overlap of nickel layer 17 and external protective layer 16 possesses a sealing property because of metallization of the edges of external protective layer 16 prior to the nickel plating process.