What should I be aware of when using connectors and terminals?

Even if you are not in the component industry, you must have heard of terminals and connectors. Talking about terminals and connectors, you know what to pay attention to when using connectors and terminals. On the use of connectors and terminals, Huicheng Yuan connector company engineers will do a detailed explanation for you. Here, I hope you can "terminals / connectors" use some of the precautions in mind, and in the design of machines and wire harness processing and other wire connection processing as a reference. General Precautions for Use 1. Terminals and connectors are manufactured to connect electricity and electrical signals. Do not use them as a component or part of a component that requires mechanical force to be applied to the bond (contact) of the terminal or connector.2. There are two types of terminals and connectors: those used for wiring within equipment and those used for wiring between equipment. Terminals and connectors for wiring within equipment can only be used for "internal wiring within the main body of the equipment" as defined by the Electrical Appliance and Material Safety Law. Please make sure that the side of the equipment is protected from human contact.3. Our terminals and connectors are used to make electrical connections within or between electrical equipment. Since these products are not classified as "connectors" under the Electrical Appliance and Material Safety Law, they cannot be used for wiring inside building materials or for wiring indoor and outdoor circuits. 4. Use these products within the range of ratings and performance specified in the product specifications. In addition, these ratings and performance specifications are for components, so when using them in practice, make sure that they comply with the regulations and design standards for the equipment used. 5. Do not place the terminals/connectors and work-in-process or processed products (harnesses, etc.) in environments where there are corrosive substances, corrosive gases, high temperatures, high humidity, or direct sunlight. 6. environment. Otherwise, the terminal corrosion or plastic shell insulation performance deterioration will lead to poor operation of the equipment, etc. 6. Do not apply external force to the "terminals/connectors" and process in-process products or processed products (wiring harnesses, etc.). Otherwise, it may cause deformation and damage, resulting in poor connector performance. 7. The resin molding part of the connector may have foreign matter such as black spots or a certain degree of color difference, but this will not affect the product performance. 8, "Terminals, connectors" harness circuit inspection, or in the process of assembling equipment, such as wire harnesses and other wires, as well as after fixing the wiring, if the wires are taut or stretching to the "Terminals / Connectors" and processed products (harnesses, etc.). "If a wire is tightened or stretched and exerts force on the joint of the terminal/connector, the contact area of the terminal or the joint of the wire may be damaged, resulting in poor contact. When wiring a harness or other wires, take appropriate measures to leave a certain amount of slack in the wires so that they do not exert excessive force on the terminal/connector joint. 9. Disconnecting or closing (hereinafter referred to as disassembling and assembling) removable terminals/connectors as a result of maintenance such as inspecting harnesses, assembling equipment, or inspecting or repairing equipment. "When disconnecting or closing (hereinafter referred to as disassembling) a detachable terminal/connector for maintenance work such as inspection of a wiring harness, assembly of equipment, inspection of equipment, or repair of equipment (hereinafter referred to as disassembling work), fix the wires in a uniform manner and operate them at an angle of 150 or less. (The values shown in the product specifications and our separate instruction manuals take precedence.) Removing and installing the terminal/connector at an angle greater than the above may result in poor contact due to the widening of the terminal insertion portion. 10. When conducting an on-circuit or wiring inspection, do not insert parts other than the applicable connector (socketed plugs, socketed pins, and busbars, etc.). Otherwise, the terminals may become deformed and cause poor contact.11. When packing or storing the processed products of "Terminals/Connectors", do not apply loads for a long time in a stacked condition. This may result in poor performance due to deformation of the terminals/connectors.

Second, the precautions when packaging SMT 1, about the soldering package of the SMT product, although the SMD product shells are made of heat-resistant materials, but due to the temperature distribution, the use of solder paste, the atmosphere and the N2 reflow soldering and other packaging conditions have a greater impact, so be sure to implement the package evaluation. 2, in view of the connector plugging operation, some SMD product shells are made of heat-resistant nylon materials with excellent toughness, but during reflow soldering, the surface of the shell may be "bulging" due to the water absorption state or soldering conditions. However, when reflow soldering is performed, the surface of the molded case may "bulge" due to the water absorption of the molded case or the soldering conditions. This "bulging" phenomenon is not caused by physical changes in the nylon material and does not affect product performance. Third, Precautions for use on equipment, etc. 1. Terminals/connectors are not manufactured on the premise that they can be disassembled and assembled in an electrically charged circuit. Therefore, do not disassemble or assemble the Terminals/Connectors in an electrically charged state, as this may result in danger from sparks, etc., and may lead to poor performance. 2. If the Terminals/Connectors are exposed to condensation or water, the insulation between circuits may be poor. If condensation or water gets wet, take appropriate measures to prevent dripping. 3. When using the terminals/connectors, do not branch the current above the rated value to energize multiple circuits. Even if the current of one circuit is calculated not to exceed the rated value, the unevenness of the conductive path or contact resistance prevents the distribution of equal current to each circuit, resulting in accelerated deterioration and abnormalities due to energization of more than the rated value. 4. When using a connector, if the wires and printed wiring boards mounted on the connector resonate, the connector should not be used for more than one circuit. If the connector is used in an area where the connector's plug-in section (connection section) is always in motion due to the resonance of the wires installed on the connector, the printed wiring board, or the movement of the rotating structure and movable parts of the equipment, the contact section may wear out due to sliding and abrasion of the contact section, resulting in poor contact. Therefore, please take measures such as fixing the wires and printed circuit boards in the equipment and supporting the printed circuit boards to suppress resonance. 5. If the "terminal material" of the "terminals/connectors" is brass, the terminals may break due to "corrosive gases such as ammonia, sulfur, etc., and moisture (condensation, etc.)". "If the terminals, connectors, or the equipment in which they are used are exposed to corrosive gases such as ammonia or sulfur, or moisture (condensation, etc.), the terminals may break or crack (stress corrosion cracking), resulting in poor contact with the connectors. If the terminal material is a copper alloy material other than brass (e.g., phosphor bronze), use the following. For more information, please contact us.

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