d-sub connectors manufacturer china is one of the connection objects commonly used in electrical appliances. It can ensure that the circuit can be perfectly connected together during installation without exceeding the size of the overall line, and will not cause great damage to the whole circuit.
d-sub connectors manufacturer china Basic performance includes mechanical performance, electrical performance and environmental performance. For electrical appliances, the main electrical properties include contact resistance, insulation resistance and electrical strength.
The level of resistance is related to the safety factor of the circuit, generally high-quality d-sub connectors manufacturer china has a low and stable contact resistance, the general contact resistance ranges from a few milliohm to tens of milliohm. In order to ensure the safety of the circuit, a voltage drop function will be set on the end of the direct contact with the resistance. In order to control the safe transmission of the resistance, there will be no omissions. The contact resistance in the connector should have considerable stability. Contact resistance from a few milliohm to tens of milliohm such a range, the middle value is selected according to different uses, the selected value is directly related to the service life of a connector, if the resistance is too large, the connector itself color will change, the heat and voltage will lead to its outside protective film burned, resulting in more serious internal damage.
In order to avoid excessive resistance affecting its service life, there is an insulation resistance, which is a measure of the insulation performance between the connector contacts and the contacts and the housing, the order of magnitude of hundreds of megaohms to thousands of megaohms. Significantly higher than the contact resistance. Because it is designed with the function of blocking the current, the position can not be selected incorrectly during the installation process, otherwise it will directly lead to the damage of this group of circuits because the resistance is too large or it cannot be used at all. In use, we must master this skill, and pay special attention to connection and use, only in this way can we really control a circuit installation within a safe current range.
The electrical strength is the ability to withstand the rated test voltage between the connector contacts or between the contacts and the housing, and is an indispensable part of the voltage. Its ability to withstand voltage has an inseparable relationship with its own material.
d-sub connectors manufacturer china https://www.kujunconnector.com/D-sub-Connectors
