1,mechanical property mechanical connection function, force is an important mechanical properties. Mechanical force plug for insertion and removal forces ( also known as the separation of pull-out force ), both requirement is different. In the relevant standards in maximum insertion force and the minimum separation force regulation, suggesting that, from the use of point of view, the insertion force must be small (which has low insertion force LIF and no insertion force ZIF structure ), and the separating force if too small, it will affect the reliability of the contact. Another important mechanical properties is a connector mechanical life. Mechanical life is actually a durability index in GB, GB5095 called it the mechanical operation. It is an insertion and a pull out as a cycle, to in the provisions of the plug connector can be normal after cyclic to complete its connection function ( such as contact resistance ) as the basis for evaluation. Connector plug and mechanical life and contact structure ( positive pressure size ) contact a plating quality ( friction coefficient ) and contact arrangement dimension accuracy ( accuracy ) have closed.

2,electrical connector electrical property including the contact resistance, insulation resistance and electrical properties of dielectric strength. The contact resistance of high quality electric connector should have a low and stable contact resistance. Connector contact resistance from a few milliohms to dozens of milliohms ranging. The insulation resistance measurement of electrical connector between contacts and contact between the casings and the margin of performance indicators, its order of magnitude for several hundred to several thousand Europe ranging from europe. The dielectric strength or high voltage, medium voltage, is the characterization of connector contacts or contact between the piece and the casing between tolerance rated voltage test of ability. The other electrical properties. Electromagnetic interference leakage attenuation is the evaluation of connector for electromagnetic interference shielding effect, electromagnetic interference leakage attenuation is the evaluation of connector for electromagnetic interference shielding effect, generally in the 100MHz ~ 10GHz frequency range test.

3,environmental performance of common environmental performance includes temperature, humidity resistance, salt spray resistance, vibration and environmental performance impact. The temperature resistance current rectangular connectors for maximum working temperature of 140 degrees C ( a special kind of connector temperature except), the minimum temperature of - 45 DEG c.. As the connector when working at a contact point, current generates heat, causing temperature rise, therefore generally considered to work temperature should be equal to the ambient temperature and contact Wen Shengzhi and. In some rules, clearly defined connector in rated working current under the permissible temperature rise. The resistance to moisture intrusion would affect connection h insulating properties, and corrosion of metal parts. Constant constant humidity test conditions for a relative humidity of 90% to 95% (according to the product specification, up to 98% ), the temperature of + 40 / - 20 DEG C, test time according to product requirements, a minimum of 96 hours. Damp heat test is tougher. The salt fog resistant connector containing moisture and salinity in the working environment, the metal structure, contact surface treatment layer has the potential to generate galvanic corrosion, impact the physical and electrical performance of connector. In order to evaluate the electrical connector tolerance such environmental capacity, provisions of the salt fog test. It is the connector suspension in temperature controlled box, with the provisions of the concentration of sodium chloride solution using compressed air to spray, forming Salt atmosphere, the exposure time by product specification, for at least 48 hours.