Sintered glass materials will be used for pin holders of Class H, and sintered glass seals or hard insulation materials for hole holders. The other three types of insulators are usually made of fiber-reinforced thermoplastic polyester resins with good electrical properties, self-quenching, large stiffness, high flexure temperature, large stiffness, dimensional stability, etc. The material is relatively poor in water absorption, but can maintain dielectric strength and creep resistance. Due to the low density of the material, it also has temperature resistance, good mechanical properties and outstanding hydrolysis stability.

Spring grips, clasp rings, clasp pins, etc. of smc 1.27mm connectors are more critical elastic parts and all have locking positioning function. These key parts are very important to smc 1.27mm connectors, because the failure of elastic parts is often easy to cause the failure of smc 1.27mm connectors, and the reasons for the failure of elastic parts are mostly caused by material quality problems, so the selection of elastic parts materials should be very careful, The selected materials should meet the standard, and are often made of heat-treated beryllium bronze or stainless steel.

smc 1.27mm connectors To use seals, wire seals and interface gaskets, etc. These parts will usually use silicone rubber, fluorosilicone rubber or oil resistant rubber, etc. Selection criteria must have excellent thermal and chemical stability, high and constant flexibility over an extremely wide temperature range.

Usually, there will be a gap between the insulator and the outer shell, which can not be fully precise contact, and it is necessary to fill with materials, which is the potting material, and the potting material will choose silicone rubber or equivalent materials that meet the requirements.

In summary, smc 1.27mm connectors are important components of spacecraft, and all materials need to be carefully selected according to requirements to ensure that nothing is wrong.

When installing, pay attention to the corresponding pointer. Pinch tail of smc 1.27mm connectors and tighten after needle alignment. When installing smc 1.27mm connectors, use the tail of smc 1.27mm connectors to tighten the thread firmly by hand, do not force! Do not bend the line when inserting and pulling to prevent poor contact caused by long-term use. Do not use too much force to prevent the line from breaking and causing poor contact. Install the navigation base. Tighten the inner ring to prevent water from coming loose. When welding, pay attention to the temperature of the soldering iron, not too high, adjust the temperature according to the solder wire, generally around 400 degrees is appropriate. Solder plating on the connecting part of the welding needle and wire will cause short circuit easily. Less will result in false contact. Heating dormitory staff measure the length, can not let the tin exposed to prevent corrosion; smc 1.27mm connectors base to glue, the key is to seal the gap to prevent water, but also pay attention to beauty. Each sensor needs several cores of the corresponding several lines to measure well. After welding the smc 1.27mm connectors, use a multimeter to test whether the lines corresponding to each pointer are correct and whether each pointer is in good contact.

The first consideration of mechanical properties: refers to its insertion and withdrawal force and mechanical life, and the positive pressure of the contact, the quality of the contact part of the coating, the sliding friction coefficient and the dimensional accuracy of the contact part arrangement. The insertion and withdrawal force refers to the insertion force and the withdrawal force, the insertion force must be far lower than the withdrawal force, and the large insertion force and small withdrawal force of smc 1.27mm connectors have strict regulations.

Mechanical life refers to durability, which is called mechanical operation in the national standard. The smc 1.27mm connectors are inserted and removed once as a cycle, and the specified plug and pull cycle is an important evaluation basis for testing whether the smc 1.27mm connectors connection function is normal.

Electrical properties include contact resistance, insulation resistance and electrical strength. The general smc 1.27mm connectors contact resistance has a few milliohm, but also tens of milliohm, high quality smc 1.27mm connectors, its contact resistance is stable and low. Insulation resistance ranges from hundreds to thousands of megohm, which is an important measure of the insulation performance between the smc 1.27mm connectors and between the contacts and the housing. Electrical strength is the ability to withstand the rated test voltage between the connector contacts or between the contacts and the housing.

Environmental performance refers to temperature resistance, humidity resistance, smoke resistance, vibration and impact resistance. At present, in addition to a small number of high-temperature resistant special smc 1.27mm connectors, the high operating temperature of most connectors is 200 ° C, and the low temperature is -65 ° C. The moisture in the working environment will affect the insulation performance of the connector, and it will rust metal parts, so the constant wet heat test conditions of the connector are relative humidity 90%-95%, humidity +40+20℃, and the test time is as low as 96 hours.

In addition to moisture, there will be salt in the working environment of smc 1.27mm connectors. The salt spray generated will produce electrochemical corrosion on the surface treatment layer of metal structural parts and contact parts, ultimately affecting the electrical performance of the electrical connector.

The important performance when used in aerospace, railway and road is vibration resistance and impact resistance, which is also an important indicator to test whether the smc 1.27mm connectors are robust and reliable. When it is tested, the peak acceleration, duration and shock pulse waveform in the impact test, as well as the time of electrical continuity interruption are clearly specified.

smc 1.27mm connectors https://www.kujunconnector.com/SMC-1-27mm-Connectors