RJ45 network connector purchase knowledge

1, excellent dielectric properties: for low-frequency electrical rj45 network interface, the plea for high insulation resistance dielectric strength, general insulation resistance between the joints and grounding should be greater than 1Ω; in the 0.44MPa low voltage, the experimental voltage of 500V, should not have an arc and breakdown phenomenon. For high-frequency electrical connectors, in addition to satisfying the above requirements, good plea for high-frequency dielectric loss is small, dielectric constant is small. 2, high heat-resistant temperature: the general heat distortion temperature should be more than 200 ℃, in order to resist the high temperature in the appearance of the equipment skills or welding, and can be resistant to the usual heat temperature of the connector itself. 3, good resistance to arcing: ensure that the arc can be resisted in the process of connecting the equipment to the arc on the damage to the plastic. 4, flame retardancy Good: to prevent the onset of fire in short-circuit and other abnormal conditions, in order to prevent the hazards of toxic gases on the human body, better use of halogen-free flame-retardant materials. 5, rj45 network interface has satisfactory mechanical function: good resistance to prevent breakage; high flexural strength to prevent deformation of the force; the specific experimental conditions for a certain amount of vibration and shock conditions (vibration frequency of 20 ~ 60Hz, acceleration of 5g), insertion and extraction 500 times Plastic parts do not appear mechanical hazards and crack phenomenon. 6, suitable for placing inserts: the coefficient of linear expansion should be small, in order to temperature changes with the inserts link is still strong. Standard stability is high in the specific use of the process, the force after the creep is small, not warped, after warming, swelling size. General request for contact between the hole distance of the standard accuracy to adhere to the 6 level. 7, processing mobility should be good: in line with the electronic connectors increasingly miniaturized request. 8, excellent solvent resistance: plastic parts in the role of solvents, should not be subjected to corrosion and cracking. 9, no corrosive gases: plastic parts in the use of the process, should not be attacked on the silver layer of corrosive gases in order to prevent the impact of contact with the conductive function. 10, the plastic parts in the use of the silver layer should not be affected. 11, the plastic parts in the use of the silver layer should not be affected. Function.

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